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Index to Financial Statements

     
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 _______________________________________________ 
FORM 10-K
 _______________________________________________
(mark one)  
xAnnual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 
 for the fiscal year ended December 31, 20162017 
OR
oTransition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
 for the transition period from ______ to ______ 
Commission file number 001-36113
COLUMBIA PROPERTY TRUST, INC.
(Exact name of registrant as specified in its charter)
Maryland 20-0068852
(State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification Number)
 
One Glenlake Parkway,1170 Peachtree Street NE, Suite 1200600
Atlanta, Georgia 3032830309
(Address of principal executive offices) (Zip Code)
(404) 465-2200
(Registrant's telephone number, including area code)
   
Securities registered pursuant to Section 12 (b) of the Act:
Title of each class Name of exchange on which registered
Common Stock New York Stock Exchange
Securities registered pursuant to Section 12 (g) of the Act:
None
Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.
Yes  x No  o
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Exchange Act.
Yes  o No  x
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
Yes  x No  o
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).
Yes  x No  o
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. x
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated filer", "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act.
Large accelerated filer x Accelerated filer o Non-accelerated filer o Smaller reporting company o Emerging Growth Company o
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).
Yes  o No  x

As of June 30, 2016,2017, the aggregate market value of the common stock of Columbia Property Trust, Inc. held by non-affiliates was $2,268,996,000
$2,286,239,000 based on the closing price as reported by the New York Stock Exchange.
As of January 31, 2017, 122,455,7632018, 119,897,777 shares of common stock were outstanding.

Registrant incorporates by reference portions of the Columbia Property Trust, Inc. Definitive Proxy Statement for the 20172018 Annual Meeting of Stockholders (Items 10, 11, 12, 13, and 14 of Part III) to be filed prior to April 30, 2017.2018.
     


Table of Contents
Index to Financial Statements

FORM 10-K
COLUMBIA PROPERTY TRUST, INC.
TABLE OF CONTENTS
 
  Page No.
   
Item 1.
   
Item 1A.
   
Item 1B.
   
Item 2.
   
Item 3.
   
Item 4.
   
   
Item 5.
   
Item 6.
   
Item 7.
 
Item 7A.
   
Item 8.
   
Item 9.
   
Item 9A.
   
Item 9B.
   
   
Item 10.
   
Item 11.
   
Item 12.
   
Item 13.
   
Item 14.
   
   
Item 15.
   
 




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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS
Certain statements contained in this Form 10-K of Columbia Property Trust, Inc. and its subsidiaries ("Columbia Property Trust," "we," "our," or "us"), other than historical facts may be considered forward-looking statementsconstitute "forward-looking statements” within the meaning of the Private Litigation Reform Act of 1995 (set forth in Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 (the "Exchange Act")1934). We intend for all such forward-looking statements presented in this annual report on Form 10-K ("Form 10-K"), or that management may make orally or in writing from time to time, to be covered by the applicable safe harbor provisions for forward-lookingforward- looking statements contained in those acts.
Such statements in this Form 10-K include, in particular, statementsamong other things, information about possible or assumed future results of the business and our financial condition, liquidity, results of operations, plans, strategies, and prospects, and are subject to certain risks and uncertainties, including known and unknown risks, which could cause actual results to differ materially from those projected or anticipated.objectives. Such forward-lookingforward- looking statements can generally be identified by our use of forward-looking terminology such as "may," "will," "expect," "intend," "anticipate," "estimate," "believe," "continue," or other similar words. As forward-looking statements, these statements are subject to certain risks and uncertainties, including known and unknown risks, which could cause actual results to differ materially from those projected or anticipated. These risks, uncertainties, and other factors include, without limitation:
risks affecting the real estate industry (such as the inability to enter into new leases, dependence on tenants’ financial condition, and competition from other owners of real estate);
risks relating to our ability to maintain and increase property occupancy rates and rental rates;
adverse economic or real estate developments in our target markets;
risks relating to the use of debt to fund acquisitions;
availability and terms of financing;
ability to refinance indebtedness as it comes due;
sensitivity of our operations and financing arrangements to fluctuations in interest rates;
reductions in asset valuations and related impairment charges;
risks associated with joint ventures;
risks relating to repositioning our portfolio;
risks relating to construction and development activities;
risks relating to acquisition and disposition activities;
risks associated with joint venture relationships;
existence of complex regulations relating to our status as a real estate investment trust ("REIT");
risks associated with our potential failure to qualify as a REIT;
potential liability for uninsured losses and environmental contamination;
potential adverse impact of market interest rates on the market price for our securities; and
risks associated with our dependence on key personnel whose continued service is not guaranteed.
For further discussion of these and additional risks and uncertainties that may cause actual results to differ from expectation, see Item 1A, Risk Factors, and other information contained in this Form 10-K and our other periodic reports filed with the SEC. Although we believe that the expectations reflected in such forward-looking statements are based on reasonable assumptions, we can give no assurances that our expectations will be achieved. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date this reportForm 10-K is filed with the U.S. Securities and Exchange Commission ("SEC"). We do not intend to update or revise any forward-looking statements,statement, whether as a result of new information, future events, or otherwise. See Item 1A herein for a discussion of some of the risks and uncertainties, although not all risks and uncertainties that could cause actual results to differ materially from those presented in our forward-looking statements may be included therein.



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PART I
ITEM 1.BUSINESS
General
Columbia Property Trust, Inc. ("Columbia Property Trust") (NYSE: CXP) is a Maryland corporation that operates as a real estate investment trust ("REIT") for federal income tax purposes and owns and operates commercial real estate properties. Columbia Property Trust was incorporated in 2003, commenced operations in 2004, and conducts business primarily through Columbia Property Trust Operating Partnership, L.P. ("Columbia Property Trust OP"), a Delaware limited partnership. Columbia Property Trust is the general partner and sole owner of Columbia Property Trust OP and possesses full legal control and authority over its operations. Columbia Property Trust OP acquires, develops,redevelops, owns, leases, and operates real properties directly, through wholly owned subsidiaries, orand through unconsolidated joint ventures. ReferencesUnless otherwise noted herein, references to Columbia Property Trust, "we," "us," or "our" herein shall include Columbia Property Trust and all subsidiaries of Columbia Property Trust, direct and indirect.
Columbia Property Trust typically invests in high-quality, income-generating office properties. As of December 31, 2016,2017, Columbia Property Trust owned 21 office19 operating properties, of which 14 were wholly owned and one hotel, whichfive were owned through unconsolidated joint ventures. These properties are located primarily in New York, San Francisco, Washington, D.C., and Atlanta, contain approximately 11.0a total of 9.2 million rentable square feet, of commercial space, located in nine states and the District of Columbia. All of the office properties are wholly owned except for one property, which is owned through the Market Square Joint Venture,were approximately 96.2% leased as described in Note 4, UnconsolidatedJoint Venture. As of December 31, 2016, the office properties, including 51% of the Market Square buildings, which Columbia Property Trust owns through an unconsolidated joint venture, were approximately 90.6% leased. In January 2017, Columbia Property Trust sold three office properties in Houston, Texas, and the Key Center Tower and Key Center Marriott in Cleveland, Ohio. The terms of these transactions are described in Note 3, Real Estate Transactions, of the accompanying consolidated financial statements.2017.
Real Estate Investment Objectives
Columbia Property Trust seeks to invest in and manage a commercial real estate portfolio that provides the size, quality, and market specialization needed to deliver both income and long-term growth, as measured in the total return to our shareholders. Our primary strategic objective is to generate long-term shareholder returns from a combination of steadily growing cash flows and appreciation in our net asset values, through the acquisition and ownership of high-quality office buildings located principally in high-barrier-to-entry markets. Our value creation and growth strategies are founded in the following:
Targeted Market Strategy
Our portfolio consists of a combination of multi- and single-tenant office properties located primarily in Central Business Districts ("CBD"). We focus our acquisition efforts in select primary markets with strong fundamentals and liquidity, including CBD and urban in-fill locations. We believe that the major U.S. office markets provide a greater propensitythe greatest opportunity for producing increasing net income and property values over time. We maintain a long-term goal of increasing our market concentrationspresence in our target markets in order to leverage our scale, efficiency, and market knowledge.
New Investment Targets
We look to acquire strategic and premier office assets with quality tenants in our target markets, with an emphasismarkets. We concentrate on value-added opportunities. We pursue high-quality assetsoffice buildings that are competitive within the top tier of their markets or that can be repositioned as such. Our asset selection criteriasuch through value-add initiatives. In addition, our investment objectives include the property's location attributes, physical quality, tenant/lease characteristics, competitive positioning,optimizing our portfolio allocation between stabilized investments and pricing level in comparison to long-term, normalized value or replacement cost.more growth-oriented, value-add investments, with an emphasis on central business districts and multi-tenant buildings.
Strong and Flexible Balance Sheet
We are committed to maintaining an investment-grade balance sheet with a strong liquidity profile and proven access to capital. Our leverage level and other credit metrics provide the financial flexibility to pursue new acquisitions and other growth opportunities that will further our long-term performance objectives.
Capital Recycling
To date, we have primarily sold non-strategic assets to increase our concentration in our target markets. In the future, we also anticipate selling some assets from our target markets to maintain a well-balanced portfolio and to harvest capital from mature assets. Our goals are to foster long-term growth and capital appreciation in our portfolio by maintaining the following:   an appropriate balance of core investments relative to value-add investments, building profiles that will continue to attract prospects for future rent growth, and activity levels that will continue to support our connections in the real estate community. We consistentlyroutinely evaluate our existing portfolio to identify assets in which the value has been optimized and/or those that are considered nonstrategic, based on their market location or investment characteristics. The goalgood candidates for disposition in the furtherance of our disposition efforts is to harvest capital from these mature and nonstrategic assets, and redeploy it into properties in our target markets to maximize growth in net operating income and long-term value.goals.
Proactive Asset Management
We believe our team is well equipped to deliver operating results in all facets of the management process. Our leasing efforts are founded in understanding the varied and complex needs of tenants in the marketplace today. We pursue meeting those needs through new and renewal leases, as well as lease restructures that further our long-term goals. We are committed to prudent capital


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through new and renewal leases, as well as lease restructures that further our long-term goals. We are committed to prudent capital investment in our assets to ensure their competitive positioning and status, and rigorously pursue efficient operations and cost containment at the property level.
Transaction Activity
In connection with furthering the repositioning of our portfolio, and in furtherance of our real estate investment objectives, we have executed the following real estate transactions in the 2015,during 2017, 2016, and 2017:2015:
Acquisitions        
Property Location Rentable Square Feet Acquisition Date Purchase Price
2015        
229 West 43rd Street Building New York, NY 481,000
 August 4, 2015 $516,000
116 Huntington Avenue Building Boston, MA 271,000
 January 8, 2015 $152,000
315 Park Avenue South Building New York, NY 327,000
 January 7, 2015 $372,000
1881 Campus Commons Building Reston, VA 244,000
 January 7, 2015 $64,000

Dispositions
        
Property Location Rentable Square Feet Disposition Date Sale Price
2017        
Key Center Tower & Marriott Cleveland, OH 1,326,000
 January 31, 2017 $267,500
Houston Property Sale:   1,187,000
 January 6, 2017 $272,000
5 Houston Center Houston, TX 581,000
    
Energy Center I Houston, TX 332,000
    
515 Post Oak Houston, TX 274,000
    
2016        
SanTan Corporate Center Phoenix, AZ 267,000
 December 15, 2016 $58,500
Sterling Commerce Dallas, TX 310,000
 November 30, 2016 $51,000
9127 South Jamaica Street Denver, CO 108,000
 October 12, 2016 $19,500
80 Park Plaza Newark, NJ 961,000
 September 30, 2016 $174,500
9189, 9191 & 9193 South Jamaica Street Denver, CO 370,000
 September 22, 2016 $122,000
800 North Frederick Suburban MD 393,000
 July 8, 2016 $48,000
100 East Pratt Baltimore, MD 653,000
 March 31, 2016 $187,000
2015        
1881 Campus Commons Building Reston, VA 244,000
 December 10, 2015 $65,000
11 Property Sale:   2,856,000
 July 1, 2015 $433,250
170 Park Avenue Building Northern NJ 145,000
    
180 Park Avenue Building Northern NJ 224,000
    
1580 West Nursery Road Buildings Baltimore, MD 315,000
    
Acxiom Buildings Chicago, IL 322,000
    
Highland Landmark III Building Chicago, IL 273,000
    
The Corridors III Building Chicago, IL 222,000
    
215 Diehl Road Building Chicago, IL 162,000
    
544 Lakeview Building Chicago, IL 139,000
    
Bannockburn Lake III Building Chicago, IL 106,000
    
Robbins Road Buildings Boston, MA 458,000
    
550 King Street Buildings Boston, MA 490,000
    
Acquisitions           
Property Location % Acquired Square Feet Acquisition Date 
Purchase Price
(in thousands)
2017           
149 Madison Avenue New York, NY 100.0% 127,000
 November 28, 2017 $87,700
 
245-259 West 17th Street New York, NY   281,000
     
218 West 18th Street New York, NY   166,000
     
West 17th Street & West 18th Street Acquisition 100.0% 447,000
 October 11, 2017 $514,100
 
1800 M Street Washington, D.C. 55.0% 581,000
 October 11, 2017 $231,550
(1) 
114 Fifth Avenue New York, NY 49.5% 352,000
 July 6, 2017 $108,900
(1) 
2015           
229 West 43rd Street New York, NY 100.0% 481,000
 August 4, 2015 $516,000
 
116 Huntington Avenue Boston, MA 100.0% 271,000
 January 8, 2015 $152,000
 
315 Park Avenue South New York, NY 100.0% 327,000
 January 7, 2015 $372,000
 
1881 Campus Commons Reston, VA 100.0% 244,000
 January 7, 2015 $64,000
 
Joint Venture          
Property Contributed to Joint Venture Location % Sold / Retained Rentable Square Feet Closing Date Contributed Value
2015          
Market Square Buildings Washington, D.C. 49%/51% 698,000
 October 28, 2015 $595,000
(1)
Purchase price is for our partial interests in the properties. These properties are owned through unconsolidated joint ventures. Please refer to Note 3, Real Estate Transactions, and Note 4, Unconsolidated Joint Ventures, of the accompanying consolidated financial statements for more information.


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Dispositions            
Property Location % Sold Rentable Square Feet Disposition Date 
Sale Price
(in thousands)
2017            
University Circle San Francisco, CA 22.5%
(2) 
 451,000
 July 6, 2017 $121,500
(1)(2) 
333 Market Street San Francisco, CA 22.5%
(2) 
 657,000
 July 6, 2017 $112,500
(1)(2) 
Key Center Tower & Marriott Cleveland, OH 100.0%  1,326,000
 January 31, 2017 $267,500
 
5 Houston Center Houston, TX    581,000
     
Energy Center I Houston, TX    332,000
     
515 Post Oak Houston, TX    274,000
     
Houston Property Sale   100.0%  1,187,000
 January 6, 2017 $272,000
 
2016            
SanTan Corporate Center Phoenix, AZ 100.0%  267,000
 December 15, 2016 $58,500
 
Sterling Commerce Dallas, TX 100.0%  310,000
 November 30, 2016 $51,000
 
9127 South Jamaica Street Denver, CO 100.0%  108,000
 October 12, 2016 $19,500
 
80 Park Plaza Newark, NJ 100.0%  961,000
 September 30, 2016 $174,500
 
9189, 9191 & 9193 South Jamaica Street Denver, CO 100.0%  370,000
 September 22, 2016 $122,000
 
800 North Frederick Suburban MD 100.0%  393,000
 July 8, 2016 $48,000
 
100 East Pratt Baltimore, MD 100.0%  653,000
 March 31, 2016 $187,000
 
2015            
1881 Campus Commons Reston, VA 100.0%  244,000
 December 10, 2015 $65,000
 
Market Square Washington, D.C. 49.0%  698,000
 October 28, 2015 $291,550
(3) 
170 Park Avenue Northern NJ    145,000
     
180 Park Avenue Northern NJ    224,000
     
1580 West Nursery Road Baltimore, MD    315,000
     
Acxiom Chicago, IL    322,000
     
Highland Landmark III Chicago, IL    273,000
     
The Corridors III Chicago, IL    222,000
     
215 Diehl Road Chicago, IL    162,000
     
544 Lakeview Chicago, IL  �� 139,000
     
Bannockburn Lake III Chicago, IL    106,000
     
Robbins Road Boston, MA    458,000
     
550 King Street Boston, MA    490,000
     
11 Property Sale   100.0%  2,856,000
 July 1, 2015 $433,250
 
(1)
Sale price is for the partial interests in the properties. After partial sale, these properties are owned through unconsolidated joint ventures. Please refer to Note 3, Real Estate Transactions, and Note 4, Unconsolidated Joint Ventures, of the accompanying consolidated financial statements for more information.
(2)
On February 1, 2018, we sold an additional 22.5% interest in both University Circle and 333 Market Street to our joint venture partner, Allianz for $235.3 million, as described in Note 3, Real Estate Transactions, of the accompanying consolidated financial statements.
(3)
Sale price is for our partial interest in the property.  On October 28, 2015, Columbia Property Trust transferred the Market Square properties, valued at $595.0 million and subject to a $325.0 million mortgage note, to a joint venture and sold a 49% interest in that joint venture to Blackstone Property Partners for net proceeds of approximately $120.0 million.  See Note 3, Real Estate Transactions, and Note 4, Unconsolidated Joint Ventures for additional information.
Segment Information
As of December 31, 2016,2017, our reportable segments are determined based on the geographic markets in which we have significant investments. We consider geographic location when evaluating our portfolio composition and in assessing the ongoing operations and performance of our properties. See Note 15,14, Segment Information, to the accompanying consolidated financial statements.


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Employees
As of December 31, 2016,2017, we employed 9094 people.
Competition
Leasing real estate is highly competitive in the current market. As a result, we experience competition for high-quality tenants from owners and managers of competing projects. Therefore, we may experience delays in re-leasing vacant space; or we may have to provide rent concessions, incur charges for tenant improvements, or offer other inducements to enable us to timely lease vacant space, all of which may have an adverse impact on our results of operations. In addition, we are in competition with other potential buyers for the acquisition of the same properties, which may result in an increase in the amount we must pay to purchase a property. Further, at the time we elect to dispose of our properties, we will also be in competition with sellers of similar properties to locate suitable purchasers.
Concentration of Credit Risk
We are dependent upon the ability of our current tenants to pay their contractual rent amounts as they become due. The inability of a tenant to pay future rental amounts would have a negative impact on our results of operations. We are not aware of any reason why our current tenants willwould not be able to pay their contractual rental amounts as they become due in all material respects. Situations preventing our tenants from paying contractual rents could result in a material adverse impact on our results of operations. Based on our 20162017 annualized lease revenue, no single tenant accounts for more than 8%6% of our portfolio.
Website Address
Access to copies of each of our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, proxy statements, and other documents filed with, or furnished to, the SEC, including amendments to such filings, may be obtained free of charge from our website, http://www.columbia.reit, or through a link to the http://www.sec.gov website. The information contained on our website is not incorporated by reference herein. These filings are available promptly after we file them with, or furnish them to, the SEC.
ITEM 1A.RISK FACTORS
Below are some of the risks and uncertainties that could cause our actual results to differ materially from those presented in our forward-looking statements. The risks and uncertainties described below are not the only ones we face but do represent those risks and uncertainties that we believe are material to our business, operating results, prospects, and financial condition. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also harm our business.
Risks Related to Our Business and Properties
If we are unable to find suitable investments or pay too much for properties, we may not be able to achieve our investment objectives, and the returns on our investments will be lower than they otherwise would be.
We are competing for real estate investments with other REITs; real estate limited partnerships,partnerships; pension funds and their advisors; bank and insurance company investment accounts; individuals; non U.S. investors; and other entities. The market for high-quality commercial real estate assets is highly competitive, given how infrequently those assets become available for purchase. As a result, many real estate investors, including us, face aggressive competition to purchase quality office real estate assets. A significant number of entities and resources competing for high-quality office properties support relatively high acquisition prices for such properties, which may reduce the number of acquisition opportunities available to, or affordable for, us and could put pressure on our profitability and our ability to pay distributions to stockholders. We cannot be sure that we will be successful in obtaining suitable investments on financially attractive terms or that, if we make investments, our objectives will be achieved.
Economic conditions may cause the creditworthiness of our tenants to deteriorate and occupancy and market rental rates to decline.
Although U.S. macroeconomic conditions continued to be relatively stable during 2016,2017, several economic factors, including increases in interest rates, havemay adversely affectedaffect the financial condition and liquidity of many businesses, as well as the demand for office space generally. Should economic conditions worsen, our tenants' ability to honor their contractual obligations may


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suffer. Further, it may become increasingly difficult to maintain our occupancy rate and achieve future rental rates comparable to the rental rates of our currently in-place leases as we seek to re-lease space and/or renew existing leases.
Our office properties were approximately 90.6%96.2% leased at December 31, 2016,2017, and provisions for uncollectible tenant receivables, net of recoveries, were less than 0.1% of total revenues for the year then ended. As a percentage of 20162017 annualized lease revenue,


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approximately 10% of leases expire in 2017, 9%2% of leases expire in 2018, and 4%3% of leases expire in 2019, and 7% of leases expire in 2020 (see Item 2, Properties). No assurances can be given that economic conditions will not have a material adverse effect on our ability to re-lease space at favorable rates or on our ability to maintain our current occupancy rate and our low provisions for uncollectible tenant receivables.
Changes in general economic conditions and regulatory matters germane to the real estate industry may cause our operating results to suffer and the value of our real estate properties to decline.
Our operating results are subject to risks generally incident to the ownership of real estate, including:
changes in general or local economic conditions;
changes in supply of or demand for similar or competing properties in an area;
changes in interest rates and availability of permanent mortgage funds, which may render the sale of a property difficult or unattractive;
inability to finance property redevelopment or acquisitions on favorable terms;
the relative illiquidity of real estate investments;
changes in space utilization by our tenants due to technology, economic conditions, and business culture;
changes in tax, real estate, environmental, and zoning laws; and
periods of rising or higher interest rates and tight money supply.
These and other reasons may prevent us from being profitable or from realizing growth or maintaining the value of our real estate properties.
We are dependent upon the economic climates of our markets - New York; San Fransisco; Washington, D.C.; Boston; and Atlanta.
In addition, market and economic conditions in the metropolitan areas in which we derive a substantial portion of our revenue such as San Francisco, California; New York City, New York; San Francisco, California; Washington, D.C.; Boston, Massachusetts; and Atlanta, Georgia, may have a greatersignificant impact on our overall occupancy levels and rental rates and, therefore, our profitability. Furthermore, our business strategy involves continued focus on select core markets, which will increase the impact of the local economic conditions in such markets on our results of operations in future periods. These and other reasons may prevent us from being profitable or from realizing growth or maintaining the value of our real estate properties.
We depend on tenants for our revenue, and lease defaults or terminations could negatively affect our financial condition and results of operations and limit our ability to make distributions to our stockholders.
The success of our investments materially depends on the financial stability of our tenants. A default or termination by a significant tenant on its lease payments to us would cause us to lose the revenue associated with such lease and require us to find an alternative source of revenue to meet mortgage payments and prevent a foreclosure if the property is subject to a mortgage.mortgage, could cause us to violate our bank debt covenants, or impact our credit rating. In the event of a tenant default or bankruptcy, we may experience delays in enforcing our rights as landlord and may incur substantial costs in protecting our investment and re-letting our property. If a tenant defaults on or terminates a significant lease, we may be unable to lease the property for the rent previously received or sell the property without incurring a loss. In addition, significant expenditures for our properties and our company, such as mortgage payments, real estate taxes, and insurance and maintenance costs, are generally fixedtogether with general and administrative costs and debt payments, do not decrease when revenues at the related property decreases.decrease. Therefore, these events could have a material adverse effect on our results of operations or cause us to reduce the amount of distributions to stockholders.
Future acquisitions may fail to perform in accordance with our expectations, may require renovation costs exceeding our estimates or expose us to unknown liabilities, and may be located in new markets where we may face risks associated with investing in an unfamiliar market.
In the normal course of business, we typically evaluate potential acquisitions, enter into nonbinding letters of intent, and may, at any time, enter into contracts to acquire additional properties. Acquired properties may fail to perform in accordance with our expectations due to lease-up risk, renovation cost risks, and other factors. In addition, the renovation and improvement costs we incur in bringing an acquired property up to market standards may exceed our estimates. We may not have the financial resources to make suitable acquisitions or renovations on favorable terms or at all. The properties we acquire may be subject to liabilities for which we have no recourse, or only limited recourse, against the prior owners or other third parties with respect to unknown liabilities. As a result, if a liability were asserted against us based upon ownership of those properties, we might have to pay substantial sums to settle or contest it, which could adversely affect our results of operations and cash flow. Unknown liabilities with respect to acquired properties might include:
liabilities for clean-up of undisclosed environmental contamination;
claims by tenants, vendors, or other persons against the former owners of the properties;


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liabilities incurred in the ordinary course of business; and
claims for indemnification by general partners, directors, officers, and others indemnified by the former owners of the properties.
Furthermore, we may acquire properties located in markets in which we do not have an established presence. We may face risks associated with a lack of market knowledge or understanding of the local economy, forging new business relationships in the area, and unfamiliarity with local government and permitting procedures. As a result, the operating performance of properties acquired in new markets may be less than we anticipate, and we may have difficulty integrating such properties into our existing portfolio. In addition, the time and resources that may be required to obtain market knowledge and/or integrate such properties into our existing portfolio could divert our management's attention from our existing business or other attractive opportunities in our established markets.
Real estate investments are illiquid; our inability to sell a property when we plan to do so could limit our operational and financial flexibility, including our ability to pay cash distributions to our stockholders.
Because real estate investments are relatively illiquid, our ability to sell promptly one or more properties in our portfolio in response to changing economic, financial, and investment conditions may be limited. Purchasers may not be willing to pay acceptable prices for properties that we wish to sell. General economic conditions, availability of financing, interest rates, and other factors, including supply and demand, all of which are beyond our control, affect the real estate market. Therefore, we may be unable to sell a property for the price, on the terms, or within the time frame that we want. That inability could reduce our cash flow and cause our results of operations to suffer, limiting our ability to make distributions to our stockholders. Furthermore, our properties' market values depend principally upon the value of the properties' leases. A property may incur vacancies either by the default of tenants under their leases or the expiration of tenant leases. If vacancies occur and continue for a prolonged period of time, it may become difficult to locate suitable buyers for any such property, and property resale values may suffer, which could result in lower returns for our stockholders.
Uninsured losses relating to real property or excessively expensive premiums for insurance coverage could reduce our net income, orand materially and adversely affect our business or financial condition.
We may incur losses from time to time that are uninsurable or not economically feasible to insure, or may be insured subject to limitations, such as large deductibles or co-payments. Some of these losses could be catastrophic in nature, such as losses due to earthquakes, acts of terrorism, fire, floods, tornadoes, hurricanes, pollution, wars, or environmental matters. For example, we have properties located in San Francisco, California, an area especially susceptible to earthquakes, and, collectively, these properties represent approximately 26%28% of our 2016 Annualized Lease Revenue,2017 annualized lease revenue, as described in Item 2, Properties. Because several of these properties are located in close proximity to one another, an earthquake in the San Francisco area could materially damage, destroy, or impair the use by tenants of all of these properties. Furthermore, insurance risks associated with potential terrorist acts could sharply increase the premiums we pay for coverage against property and casualty claims. Additionally, mortgage lenders in some cases insist that commercial property owners purchase coverage against terrorism as a condition of providing mortgage loans. Such insurance policies may not be available at a reasonable cost, if at all, which could inhibit our ability to finance or refinance our properties. In such instances, we may be required to provide other financial support, either through financial assurances or self-insurance, to cover potential losses. In addition, we may not have adequate coverage for losses. If any of our properties incur a loss that is not fully insured, the value of that asset will be reduced by such uninsured loss. Furthermore, other than any working capital reserves or other reserves that we may establish, or our existing line of credit, we do not have additional sources of funding specifically designated for repairs or reconstruction of any our properties. To the extent we incur significant uninsured losses, or are required to pay unexpectedly large amounts for insurance, our results of operations or financial condition could be adversely effected.affected.
If we are unable to fund the future capital needs of our properties, cash distributions to our stockholders and the value of our investments could decline.
When tenants do not renew their leases or otherwise vacate their space, we often need to expend substantial funds for tenant improvements to the vacated space in order to attract replacement tenants. In addition, although we expect that our leases with tenants will require tenants to pay routine property maintenance costs, we will likely be responsible for any major structural repairs, such as repairs to the foundation, exterior walls, and rooftops.
If we need significant capital in the future to improve or maintain our properties or for any other reason, we will have to obtain financing from sources such as cash flow from operations, borrowings, property sales, or future equity offerings. These sources of funding may not be available on attractive terms or at all. If we cannot procure the necessary funding for capital improvements, our investments may generate lower cash flows or decline in value, or both, which would limit our ability to make distributions to our stockholders.


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We have incurred and are likely to continue to incur mortgage and other indebtedness, which may increase our business risks.


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As of January 31, 2017,February 2, 2018, our total consolidated indebtedness was approximately $1.4$1.5 billion, which includes a $150.0 million term loan, $700.0 million of bonds, and $274.6$71.9 million of mortgage loans, all with fixed interest rates, or with interest rates that are effectively fixed when considered in connection with an interest rate swap agreement; and $180.0 million outstanding on a bridge loan, a $300.0 million term loan, and no$60.0 million in outstanding borrowings on our variable-rate line of credit.credit, all with variable interest rates. We are likely to incur additional indebtedness to acquire properties, to fund property improvements and other capital expenditures, to pay our distributions, and for other purposes.
Significant borrowings by us increase the risks of an investment in us. If there is a shortfall between the cash flow from properties and the cash flow needed to service our indebtedness, then the amount available for distributions to stockholders may be reduced. In addition, incurring mortgage debt increases the risk of loss since defaults on indebtedness secured by a property may result in lenders initiating foreclosure actions. In that case, we could lose the property securing the loan that is in default. If any of our properties are foreclosed due to a default, our ability to pay cash distributions to our stockholders will be limited. For tax purposes, a foreclosure of any of our properties would be treated as a sale of the property for a purchase price equal to the outstanding balance of the debt secured by the mortgage. If the outstanding balance of the debt secured by the mortgage exceeds our tax basis in the property, we would recognize taxable income on foreclosure, but we would not receive any cash proceeds. We may give full or partial guarantees to lenders of mortgage debt on behalf of the entities that own our properties. When we give a guaranty on behalf of an entity that owns one of our properties, we are responsible to the lender for satisfaction of the debt if it is not paid by such entity.
If any mortgages or other indebtedness contain cross-collateralization or cross-default provisions, a default on a single loan could affect multiple properties. Our unsecured credit facility (the "Revolving Credit Facility") and our twothree unsecured term loan facilities, each includesinclude a cross-default provision that provides that a payment default under any recourse obligation of $50 million or more by us, Columbia Property Trust OP, or any of our subsidiaries, constitutes a default under the line of credit and term loan facilities. If any of our properties are foreclosed due to a default, our ability to pay cash distributions to our stockholders will be limited.
Increases in interest rates could increase the amount of our debt payments and make it difficult for us to refinance our unsecured bank debt or bonds, to finance or refinance properties, which could reduce the number of properties we can acquire, our net income, and the amount of cash distributions we can make.
We expect to incur additional indebtedness in the future, which may include mortgages, unsecured bonds, term loans, or borrowings under a credit facility. Increases in interest rates will increase interest costs on our variable-interest debt instruments, which would reduce our cash flows and our ability to pay distributions. If mortgage debt is unavailable at reasonable interest rates, we may not be able to finance the purchase of properties. If we place mortgage debt on properties, we run the risk of being unable to refinance the properties when the loans become due, or of being unable to refinance on favorable terms. In addition, if we need to repay existing debt during periods of higher interest rates, we may need to sell one or more of our investments in order to repay the debt, which sale at that time might not permit realization of the maximum return on such investments. If any of these events occur, our cash flow would be reduced. This, in turn, would reduce cash available for distribution to our stockholders and may hinder our ability to raise capital in the future through additional borrowings or debt or equity offerings. For additional information, please refer to Item 7A, Quantitative and Qualitative Disclosures About Market Risk, for additional information regarding interest rate risk.
Lenders may require us to enter into restrictive covenants relating to our operations, which could limit our ability to make distributions to our stockholders.
When providing financing, a lender may impose restrictions on us that affect our distribution and operating policies and our ability to incur additional debt. Loan documents we enter into may contain covenants that limit our ability to further mortgage the property or discontinue insurance coverage. These or other limitations may limit our flexibility and our ability to execute on our operating plans.
A downgrade in the credit rating of our debt could materially adversely affect our business and financial condition.
Our senior unsecured debt is rated investment grade by Standard & Poor's Corporation and Moody's Investors Service. In determining our credit ratings, the rating agencies consider a number of both quantitative and qualitative factors, including earnings, fixed charges, cash flows, total debt outstanding, total secured debt, off balance sheet obligations, total capitalization, and various ratios calculated from these factors. The rating agencies also consider predictability of cash flows, business strategy, property development risks, industry conditions, and contingencies. Therefore, any deterioration in our operating performance could cause our investment-grade rating to come under pressure. Our corporate credit rating at Standard & Poor's Ratings Service is currently "BBB" with a stable outlook, and our corporate credit rating at Moody's Investor Service is currently "Baa2" with a stable outlook. There can be no assurance that our credit ratings will not be lowered or withdrawn in their entirety. A negative change in our ratings outlook or any downgrade in our current investment-grade credit ratings by rating agencies could adversely affect our cost and


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access to sources of liquidity and capital. Additionally, a downgrade could, among other things, increase the costs of borrowing under our credit facility and term loan, adversely impact our ability to obtain unsecured debt or refinance our unsecured debt on


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competitive terms in the future, or require us to take certain actions to support our obligations, any of which would adversely affect our business and financial condition.
A breach of our privacy or information security systems could materially adversely affect our business and financial condition.
Privacy and information security risks have generally increased in recent years because of the proliferation of new technologies and the increased sophistication and activities of perpetrators of cyber attacks. As our reliance on technology has increased, so have the risks posed to our systems, both internal and those we have outsourced. Risks that could directly result from the occurrence of a cyber incident include operational interruption, damage to our relationships with our tenants, potential errors from misstated financial reports, missed reporting deadlines, and private data exposure, among others. Any or all of the preceding risks could have a material adverse effect on our results of operations, financial condition, and cash flows. Although we make efforts to maintain the security and integrity of these types of information technology networks and related systems, there can be no assurance that our security efforts and measures will be effective or that attempted security breaches or disruptions would not be successful or damaging. As cyber threats continue to evolve, we may be required to expend additional resources to continue to enhance our information security measures and to investigate and remediate any information security vulnerabilities.
We are and may continue to be subject to litigation, which could have a material adverse effect on our financial condition.
We currently are, and are likely to continue to be, subject to a variety of claims arising in the ordinary course of business, including contract claims and claims alleging violations of federal and state law regarding workplace and employment matters, discrimination, and similar matters. Some of these claims may result in significant defense costs and potentially significant judgments against us, some of which are not, or cannot be, insured against. Although we defend ourselves against any such claims, we cannot be certain of the ultimate outcomes of currently asserted claims or of those that arise in the future. Resolution of these types of matters against us may result in our having to pay significant fines, judgments, or settlements, which, if uninsured, or if the fines, judgments, and settlements exceed insured levels, would adversely impact our earnings and cash flows, thereby impacting our ability to service debt and make distributions to our stockholders.
Costs of complying with governmental laws and regulations may reduce our net income and the cash available for distributions to our stockholders.
All real property and the operations conducted on real property are subject to federal, state, and local laws and regulations relating to environmental protection and human health and safety. Some of these laws and regulations may impose joint and several liability on tenants, owners, or operators for the costs to investigate or remediate contaminated properties, regardless of fault or whether the acts causing the contamination were legal. In addition, the presence of hazardous substances, or the failure to properly remediate these substances, may hinder our ability to sell, rent, or pledge such property as collateral for future borrowings.
Compliance with new laws or regulations, or stricter interpretation of existing laws may require us to incur material expenditures. Future laws, ordinances, or regulations may impose material environmental liability. Additionally, our tenants' operations, the existing condition of land when we buy it, operations in the vicinity of our properties, such as the presence of underground storage tanks or activities of unrelated third parties may affect our properties. Furthermore, there are various local, state, and federal regulatory requirements, such as fire, health, life-safety, and similar regulations, and the Americans with Disabilities Act, with which we may be required to comply, and which may subject us to liability in the form of fines or damages for noncompliance. Any material expenditures, fines, or damages we must pay will reducewould adversely impact our earnings and cash flows, thereby impacting our ability to service debt and make distributions.distributions to our stockholders.
Compliance or failure to comply with the Americans with Disabilities Act or other safety regulations and requirements could result in substantial costs. 
The Americans with Disabilities Act generally requires that certain buildings, including office buildings, be made accessible to disabled persons. Noncompliance could result in the imposition of fines by the federal government or the award of damages to private litigants. If, under the Americans with Disabilities Act, we are required to make substantial alterations and capital expenditures in one or more of our properties, including the removal of access barriers, it could adversely impact our earnings and cash flows, thereby impacting our ability to service debt and make distributions to our stockholders. 
Our properties are subject to various federal, state and local regulatory requirements, such as state and local fire and life safety requirements. If we fail to comply with these requirements, we could incur fines or private damage awards. We do not know whether existing requirements will change or whether compliance with future requirements will require significant unanticipated expenditures that will affect our cash flow and results of operations. 


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Discovery of previously undetected environmentally hazardous conditions may decrease our revenues and limit our ability to make distributions.
Under various federal, state, and local environmental laws, ordinances, and regulations, a current or previous real property owner or operator may be liable for the cost to remove or remediate hazardous or toxic substances on, under, or in such property. These costs could be substantial. Such laws often impose liability whether or not the owner or operator knew of, or was responsible for, the presence of such hazardous or toxic substances. Environmental laws also may impose restrictions on the manner in which property may be used or businesses may be operated, and these restrictions may require substantial expenditures or prevent us from entering into leases with prospective tenants that may be impacted by such laws. Environmental laws provide for sanctions for noncompliance and may be enforced by governmental agencies or, in certain circumstances, by private parties. Certain environmental laws and common law principles could be used to impose liability for release of and exposure to hazardous substances, including asbestos-containing materials. Third parties may seek recovery from real property owners or operators for personal injury or property damage associated with exposure to released hazardous substances. The cost of defending against claims of liability, of complying with environmental regulatory requirements, of remediating any contaminated property, or of paying personal injury claims could have an adverse impact on our business and results of operations.
Property ownership through joint ventures may limit our ability to act exclusively in our interest.


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We have entered into afive joint venture arrangement for one of our properties in 2015arrangements and in the future may acquire properties in, or contribute properties to, joint ventures with other persons or entities when we believe circumstances warrant the use of such structures. We could become engaged in a dispute with one or more of our joint venture partners, which might affect our ability to operate a jointly-owned property. Moreover, joint venture partners may have business, economic, or other objectives that are inconsistent with our objectives, including objectives that relate to the appropriate timing and terms of any sale or refinancing of a property. In some instances, joint venture partners may have competing interests in our markets that could create conflicts of interest. Also, our joint venture partners might refuse to make capital contributions when due, and we may be responsible to our partners for indemnifiable losses. We and our partners may each have the right to trigger a buy-sell arrangement, which could cause us to sell our interest, or acquire our partners' interest, at a time when we otherwise would not have initiated such a transaction and may result in the valuation of our interest in the joint venture (if we are the seller) or of the other partner's interest in the joint venture (if we are the buyer) at levels which may not be representative of the valuation that would result from an arm's length marketing process. We are also subject to risk in cases where an institutional owner is our joint venture partner, including (i) a deadlock if we and our joint venture partner are unable to agree upon certain major and other decisions, (ii) the limitation of our ability to liquidate our position in the joint venture without the consent of the other joint venture partner, and (iii) the requirement to provide guarantees in favor of lenders with respect to the indebtedness of the joint venture.
If we sell properties and provide financing to purchasers, defaults by the purchasers would decrease our cash flows and limit our ability to make distributions.
In some instances we may sell our properties by providing financing to purchasers. When we provide financing to purchasers, we will bear the risk that the purchaser may default, which could negatively impact our liquidity and results of operations. Even in the absence of a purchaser default, the distribution of the proceeds of sales to our stockholders, or the reinvestment of proceeds in other assets, will be delayed until the promissory notes or other property we may accept upon a sale are actually paid, sold, refinanced, or otherwise disposed.
We are dependent on our executive officers and employees.
We rely on a small number of persons, particularly E. Nelson Mills and James A. Fleming, to carry out our business and investment strategies. Any of our senior management, including Messrs. Mills and Fleming, may cease to provide services to us at any time. The loss of the services of any of our key management personnel or our inability to recruit and retain qualified personnel in the future, could have an adverse effect on our business and financial results. As we expand, weWe will continue to try to attract and retain qualified additional senior management and other employees, but may not be able to do so on acceptable terms.
Our operating results may suffer because of potential development and construction risks and delays and resultant increased costs.
We may acquire and developredevelop properties, including unimproved real estate, upon which we will construct improvements. We will be subject to uncertainties associated with rezoning for development and our ability to obtain required permits and authorizations; environmental concerns of governmental entities and/or community groups; and our builders' abilitycontractors' abilities to build in conformity with plans, specifications, budgeted costs, and timetables. If a buildercontractor fails to perform, we may resort to legal action to rescind the purchase or the construction contract or to compel performance. A builder'scontractor's performance may also be affected or delayed by conditions beyond the builder'scontractor's control, and we may incur additional risks when we make periodic progress payments or other advances to builderscontractors before they complete construction. Delays in completing construction could also give tenants the right to terminate preconstruction leases. These and other factors can result in increased costs of a project or loss of our investment.


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In addition, we will be subject to normal lease-up risks relating to newly constructed projects. We must rely on rental income and expense projections and estimates of the fair market value of property upon completion of construction when agreeing upon a purchase price at the time we acquire the property. If our projections are inaccurate, we may pay too much for a property, and our return on our investment could suffer.
If our disclosure controls or internal control over financial reporting are not effective, investors could lose confidence in our reported financial information, which could adversely affect the perception of our business and the trading price of our common stock.
Section 404 of the Sarbanes-Oxley Act of 2002 requires that we evaluate the effectiveness of our internal control over financial reporting as of the end of each fiscal year and to include a management report assessing the effectiveness of our internal control over financial reporting. Deficiencies, including any material weakness, in our internal control over financial reporting that may occur in the future could result in misstatements of our results of operations, restatements of our financial statements, a decline in the trading price of our common stock, or otherwise materially adversely affect our business, reputation, results of operations, financial condition, or liquidity.


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Risks Related to Ownership of Our Common Stock
We may be unable to pay or maintain cash distributions or increase distributions over time, which could reduce the funds we have available for investment and the return to our investors.
There are many factors that can affect the availability and timing of distributions to stockholders. We expect to continue to fund distributions principally from cash flow from operations; however, from time to time, we may elect to fund a portion of our distributions from borrowings. If we fund distributions from financings, we will have fewer funds available for the investment in, and acquisition of, properties; thus, the overall return to our investors may be reduced. Further, to the extent distributions exceed cash flow from operations, a stockholder's basis in our stock will be reduced and, to the extent distributions exceed a stockholder's basis, the stockholder may recognize capital gain. We can give no assurance that we will be able to pay or maintain cash distributions or increase distributions over time.
Our stock price may be volatile or may decline regardless of our operating performance, and you may not be ableimpede our stockholders' ability to sell yourtheir shares at a desirable price.
The market price of our common stock may fluctuatevary significantly in response to a number of factors, most of which we cannot control, including those described under this section and the following:
changes in capital market conditions that could affect valuations of real estate companies in general or other adverse economic conditions;
our failure to meet any earnings estimates or expectations;
future sales of our common stock by our officers, directors, and significant stockholders;
global economic, legal, and regulatory factors unrelated to our performance;
investors' perceptions of our prospects;
announcements by us or our competitors of significant contracts, acquisitions, joint ventures, or capital commitments; and
investor perceptions of the investment opportunity associated with our common stock relative to other investment alternatives.
In addition, from time to time, the stock markets, and in particular The New York Stock Exchange (the "NYSE"), havehas experienced extreme price and volume fluctuations that have affected and continue to affect the market prices of equity securities of many real estate companies. In the past, stockholders have instituted securities class action litigation following periods of market volatility. If we were involved in securities litigation, we could incur substantial costs, and our resources and the attention of management could be diverted from our business. Furthermore, we currently have limited research coverage by securities and industry analysts. If additional securities or industry analysts do not commence coverage of our company, the long-term trading price for our common stock could be negatively impacted. If one or more of present or future analysts who cover us downgrade our common stock or publish inaccurate or unfavorable research about our business, our stock price would likely decline. If one or more of these analysts cease coverage of us or fail to publish reports on us regularly, demand for our common stock could decrease, which could cause our stock price and trading volume to decline.
Our common stock has experienced and may continue to experience low trading volumes, which may make it more difficult for you to sell your shares at any given time at prevailing prices.
The daily trading volumes for our common stock are, and may continue to be, relatively small compared to many other publicly traded securities. For example, since our listing, our average daily trading volume per month has been as low as 355,000 shares. If our stock continues to experience low trading volumes, it may be difficult for individuals to sell their shares when they want and at a price that is desirable to them. Furthermore, low trading volumes for our common stock may cause the price of our stock to be highly volatile.
Our charter limits the number of shares a person may own, which may discourage a takeover that could otherwise result in a premium price to our stockholders.
Our charter, with certain exceptions, authorizes our directors to take such actions as are necessary and desirable to preserve our qualification as a REIT. Unless exempted by our board of directors, no person may own more than 9.8% of our outstanding common stock. This restriction may have the effect of delaying, deferring, or preventing a change in control, including an extraordinary


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transaction (such as a merger, tender offer, or sale of all or substantially all of our assets) that might provide a premium price for holders of our common stock.


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Our organizational documents contain provisions that may discourage a takeover of us and could depress the price of our shares of common stock.
Our organizational documents contain provisions that may discourage a takeover of us and could depress the price of our common stock. Our organizational documents contain provisions that may have an anti-takeover effect, inhibit a change of our management, or inhibit, in certain circumstances, tender offers for our common stock or proxy contests to change our board. These provisions include: ownership limits and restrictions on transferability that are intended to enable us to continue to qualify as a REIT; broad discretion of our board to take action, without stockholder approval, to issue new classes of securities that may discourage a third party from acquiring us; the ability, through board action or bylaw amendment to opt-in to certain provisions of Maryland law that may impede efforts to effect a change in control of us; advance notice requirements for stockholder proposals and stockholder nominations of directors; and the absence of cumulative voting rights.
In addition, our board of directors may classify or reclassify any unissued preferred stock and establish the preferences; conversion; or other rights, voting powers, restrictions, or limitations as to distributions, qualifications, and terms or conditions of redemption of any such stock. Thus, our board of directors could authorize the issuance of preferred stock with terms and conditions that could have priority as to distributions and amounts payable upon liquidation over the rights of the holders of our common stock. Such preferred stock could also have the effect of delaying, deferring, or preventing a change in control of us, including an extraordinary transaction (such as a merger, tender offer, or sale of all or substantially all of our assets) that might provide a premium price to holders of our common stock.
Maryland General Corporation Law provides certain protections relating to deterring or defending hostile takeovers, which may discourage others from trying to acquire control of us and may prevent our stockholders from receiving a premium price for their stock in connection with a business combination.
Our board of directors has determined to opt out of certain provisions of Maryland law that may impede efforts to effect a change in control of us as further described below; in the case of the business combination provisions of Maryland law, by resolution of our board of directors; in the case of the control share provisions of Maryland law, pursuant to a provision in our bylaws; and in the case of certain provisions of the Maryland Unsolicited Takeover Act, pursuant to Articles Supplementary. Only upon stockholder approval of an amendment to our Articles of Incorporation, may our board of directors repeal the foregoing opt-outs from the anti-takeover provisions of Maryland General Corporation Law.
Under Maryland law, "business combinations" between a Maryland corporation and certain interested stockholders or affiliates of interested stockholders are prohibited for five years after the most recent date on which the interested stockholder becomes an interested stockholder. These business combinations include a merger, consolidation, share exchange, or, in circumstances specified in the statute, an asset transfer or issuance or reclassification of equity securities. Also under Maryland law, control shares of a Maryland corporation acquired in a control share acquisition have no voting rights except to the extent approved by a vote of two-thirds of the votes entitled to be cast on the matter. Shares owned by the acquirer, an officer of the corporation, or an employee of the corporation who is also a director of the corporation are excluded from the vote on whether to accord voting rights to the control shares. These provisions may therefore discourage others from trying to acquire control of us and increase the difficulty of consummating any offer. Similarly, provisions of Title 3, Subtitle 8 of the Maryland General Corporation Law, commonly referred to as the "Maryland Unsolicited Takeover Act," could provide similar anti-takeover protection.
Our board of directors has determined to opt out of these provisions of Maryland law; in the case of the business combination provisions of Maryland law, by resolution of our board of directors; in the case of the control share provisions of Maryland law, pursuant to a provision in our bylaws; and in the case of certain provisions of the Maryland Unsolicited Takeover Act, pursuant to Articles Supplementary. Only upon the approval of our stockholders, our board of directors may repeal the foregoing opt-outs from the anti-takeover provisions of Maryland General Corporation Law.
Federal Income Tax Risks
Failure to qualify as a REIT would reduce our net income and cash available for distributions.
Our qualification as a REIT depends upon our ability to meet requirements regarding our organization and ownership, distributions of our income, the nature and diversification of our income and assets, and other tests imposed by the Internal Revenue Code (the "Code"). If we fail to qualify as a REIT for any taxable year, we will be subject to federal and state income tax on our taxable income at corporate rates, and/orincluding interest and any applicable penalties. In addition, we would generally be disqualified from treatment as a REIT for the four taxable years following the year of losing our REIT status. Losing our REIT status would reduce our net earnings available for investment or distribution to stockholders because of the additional tax liability. In addition, distributions to stockholders would no longer qualify for the dividends-paid deduction, and we would no longer be required to make distributions. If this occurs, we might be required to borrow funds or liquidate some investments in order to pay the applicable tax.
Recharacterization of sale-leaseback transactions may cause us to lose our REIT status, which would reduce the return to our stockholders.


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We may purchase properties and lease them back to the sellers of such properties. While we will use our best efforts to structure any such sale-leaseback transaction such that the lease will be characterized as a "true lease," thereby allowing us to be treated as the owner of the property for federal income tax purposes, we can give no assurance that the Internal Revenue Service will not challenge such characterization. In the event that any such sale-leaseback transaction is challenged and recharacterized as a


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financing transaction or loan for federal income tax purposes, deductions for depreciation and cost recovery relating to such property would be disallowed. If a sale-leaseback transaction waswere so recharacterized, we might fail to satisfy the REIT qualification asset tests or income tests and, consequently, lose our REIT status. Alternatively, the amount of our REIT taxable income could be recalculated, which might also cause us to fail to meet the distribution requirement for a taxable year.
Even if we qualify as a REIT for federal income tax purposes, we may be subject to other tax liabilities that reduce our cash flow and our ability to make distributions to our stockholders.
Even if we remain qualified as a REIT for federal income tax purposes, we may be subject to some federal, state, and local taxes on our income or property. For example:
In order to qualify as a REIT, we must distribute annually at least 90% of our REIT taxable income to our stockholders (which is determined without regard to the dividends-paid deduction or net capital gain). To the extent that we satisfy the distribution requirement but distribute less than 100% of our REIT taxable income, we will be subject to federal and state corporate income tax on the undistributed income.
We will be subject to a 4% nondeductible excise tax on the amount, if any, by which distributions we pay in any calendar year are less than the sum of 85% of our ordinary income, 95% of our capital gains net income, and 100% of our undistributed income from prior years.
If we have net income from the sale of foreclosure property that we hold primarily for sale to customers in the ordinary course of business or other nonqualifying income from foreclosure property, we must pay a tax on that income at the highest corporate income tax rate.
If we sell a property, other than foreclosure property, that we hold primarily for sale to customers in the ordinary course of business, our gain would be subject to the 100% "prohibited transaction" tax.
We may perform additional, noncustomary services for tenants of our buildings through our taxable REIT subsidiary, including real estate or non-real-estate-related services; however, any earnings related to such services are subject to federal and state income taxes.
Legislative or regulatory action could adversely affect investors.
In recent years, numerous legislative, judicial, and administrative changes have been made in the provisions of federal and state income tax laws applicable to investments similar to an investment in our shares. In particular, H.R. 1, which generally takes effect for taxable years beginning on or after January 1, 2018 (subject to certain exceptions), makes many significant changes to the U.S. federal income tax laws that will profoundly impact the taxation of individuals and corporations (including both regular C corporations and corporations that have elected to be taxed as REITs). A number of changes that affect noncorporate taxpayers will expire at the end of 2025 unless Congress acts to extend them. These changes will impact us and our shareholders in various ways, some of which are adverse or potentially adverse compared to prior law. To date, the IRS has issued only limited guidance with respect to certain of the new provisions, and there are numerous interpretive issues that will require guidance. It is highly likely that technical corrections legislation will be needed to clarify certain aspects of the new law and give proper effect to Congressional intent. There can be no assurance, however, that technical clarifications or changes needed to prevent unintended or unforeseen tax consequences will be enacted by Congress in the near future. Additional changes to tax laws are likely to continue to occur in the future, and we cannot assure investors that any such changes will not adversely affect the taxation of our stockholders. Any such changes could have an adverse effect on an investment in shares or on the market value or the resale potential of our properties. Investors are urged to consult with their own tax advisor with respect to the impact of recent legislation on ownership of shares and the status of legislative, regulatory, or administrative developments and proposals, and their potential effect on ownership of shares.
To maintain our REIT status, we may be forced to borrow funds or dispose of assets during unfavorable market conditions to make distributions to our stockholders, which could increase our operating costs and decrease the value of an investment in us.
To qualify as a REIT, we must distributeWe intend to make distributions to our stockholders each year 90%to comply with the requirements of the Code for REITs and to minimize or eliminate our REITcorporate tax obligations; however, differences between the recognition of taxable income (which is determined without regard to the dividends-paid deduction or net capital gains). At times, we may not have sufficient funds to satisfy these distribution requirements and may need to borrow funds to maintain our REIT status and avoid the payment of income and excise taxes. These borrowing needs could result from (i) differences in timing between the actual receipt of cash could require us to sell assets or borrow funds on a short-term or long-term basis to meet the distribution requirements of the Code. Certain types of assets generate substantial disparity between taxable income and inclusionavailable cash, such as real estate that has been financed through financing structures which require some or all of available cash flows to be used to service borrowings. In addition, changes made by H.R. 1 will require us to accrue certain income for U.S. federal income tax purposes (ii)no later than when such income is taken into account as revenue on our financial statements (subject to an exception for certain income that is already


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subject to a special method of accounting under the effectInternal Revenue Code). This could cause us to recognize taxable income prior to the receipt of nondeductiblethe associated cash. H.R. 1 also includes limitations on the deductibility of certain compensation paid to our executives, certain interest payments, and certain net operating loss carryforwards, each of which could potentially increase our taxable income and our required distributions. As a result, the requirement to distribute a substantial portion of our taxable income could cause us to: (1) sell assets in adverse market conditions, (2) borrow on unfavorable terms, or (3) distribute amounts that would otherwise be invested in future acquisitions, capital expenditures, (iii) the creationor repayment of reserves, or (iv) required debt, or amortization payments. We may needin order to borrow funds at times when market conditions are unfavorable. Such borrowingscomply with REIT requirements. Any such actions could increase our costs and reduce the value of our common stock. Further, we may be required to make distributions to our stockholders when it would be more advantageous to reinvest cash in our business or when we do not have funds readily available for distribution. Compliance with REIT qualification requirements may, therefore, hinder our ability to operate solely on the basis of maximizing profits.
To maintain our REIT status, we may be forced to forego otherwise attractive opportunities, which could delay or hinder our ability to meet our investment objectives and lower the return to our stockholders.
To qualify as a REIT, we must satisfy tests on an ongoing basis concerning, among other things, the sources of our income, the nature of our assets, and the amounts we distribute to our stockholders. We may be required to make distributions to stockholders at times when it would be more advantageous to reinvest cash in our business or when we do not have funds readily available for distribution. Compliance with the REIT requirements may hinder our ability to operate solely on the basis of maximizing profits.
Because of the ownership structure of our hotel property, we face potential adverse effects from changes to the applicable tax laws.
Until January 31, 2017, we owned one hotel property. However, under the Code, REITs are not allowed to operate hotels directly or indirectly. Accordingly, our hotel property was leased to our taxable REIT subsidiary (the "TRS"). As lessor, we were entitled to base rent and percentage rent, calculated based on the gross receipts from the operation of the hotel property. Marriott Hotel Services, Inc. managed the hotel under the Marriott® name pursuant to a management contract with the TRS as lessee. While the TRS structure allowed the economic benefits of ownership to flow to us, the TRS was subject to tax on its income from the operations of the hotel at the federal and state levels. In addition, the TRS continues to be subject to detailed tax regulations that affect how it may be capitalized and operated. If the tax laws applicable to our TRS changed, we could have been forced to modify the structure for owning our hotel property or selling our hotel property, which may have adversely affected our cash flows. In addition, the Internal Revenue Service, the U. S. Department of the Treasury, and Congress frequently review federal income tax legislation, and we cannot predict whether, when, or to what extent new federal tax laws, regulations, interpretations, or rulings


Page 14


will be adopted. Any of such actions may prospectively or retroactively modify the tax treatment of the TRS and, therefore, may adversely affect after-tax returns from the hotel property.
Legislative or regulatory action could adversely affect investors.
In recent years, numerous legislative, judicial, and administrative changes have been made in the provisions of federal and state income tax laws applicable to investments similar to an investment in shares of Columbia Property Trust. Additional changes to tax laws are likely to continue to occur in the future, and we cannot assure you that any such changes will not adversely affect the taxation of our stockholders. Any such changes could have an adverse effect on an investment in shares or on the market value or the resale potential of our properties. You are urged to consult with your own tax advisor with respect to the impact of recent legislation on your ownership of shares and the status of legislative, regulatory, or administrative developments and proposals, and their potential effect on ownership of shares.
ITEM 1B.UNRESOLVED STAFF COMMENTS
Not applicable.
ITEM 2.PROPERTIES
Overview
As of December 31, 2016, we owned interests in 21 office properties and one hotel located in nine states and the District of Columbia. All of the properties are wholly owned except for one, which is owned through an unconsolidated joint venture. As of December 31, 2016, our office2017, we owned 19 operating properties, including 51% of the Market Square buildings, which we own14 were wholly owned and five were owned through an unconsolidated joint venture,ventures. These properties are located primarily in New York, San Francisco, Washington, D.C., and Atlanta and were approximately 90.6% leased. In January 2017, Columbia Property Trust sold three office properties in Houston, Texas, and the Key Center Tower and Key Center Marriott in Cleveland, Ohio. The terms96.2% leased as of these transactions are described in Note 3, Real Estate Transactions.December 31, 2017.
Property Statistics
The tables below include statistics for the 2114 operating properties that we own directly and 51%our proportional share of the Annualized Lease Revenueannualized lease revenue and rentable square feet for the Market Square buildings, whichfive properties we own through an unconsolidated joint venture.ventures. Annualized Lease Revenuelease revenue is an operating metric, calculated as (i) annualized rental payments (defined as base rent plus operating expense reimbursements, excluding rental abatements) for executed and commenced leases as of December 31, 2016,2017, as well as leases executed but not yet commenced for vacant space, and (ii) annualized parking revenues, payable either under the terms of an executed lease or vendor contract.contract ("Annualized Lease Revenue"). Annualized Lease Revenue excludes rental payments for executed leases that have not yet commenced for space covered by an existing lease.


Page 16


The following table shows lease expirations of our office properties as of December 31, 20162017, during each of the next 10 years and thereafter. This table assumes no exercise of renewal options or termination rights.    
Year of Lease Expiration 
2016 Annualized
Lease Revenue
(in thousands)
(1)
 
Rentable
Square Feet
(in thousands)(2)
 Percentage of
2016 Annualized
Lease Revenue
Vacant $
 965
 %
2017 39,102
 884
 10%
2018 36,727
 739
 9%
2019 16,666
 251
 4%
2020 32,527
 799
 8%
2021 61,486
 1,780
 16%
2022 34,412
 789
 9%
2023 19,252
 378
 5%
2024 14,857
 267
 4%
2025 37,327
 1,146
 9%
2026 37,402
 882
 9%
Thereafter 65,997
 1,440
 17%
  $395,755
 10,320
 100%


Page 15


(1)
Includes Annualized Lease Revenue of $22.0 million from our 51% interest in the Market Square Joint Venture.
(2)
Includes 272,000 square feet for the Market Square Buildings, which amount is prorated to reflect our 51% interest in the Market Square Joint Venture.

Year of Lease Expiration
Rentable
Square Feet
(in thousands)
 2017 Annualized
Lease Revenue
(in thousands)
 Percentage of
2017 Annualized
Lease Revenue
Vacant307
 $
 %
201894
 6,315
 2%
2019167
 12,583
 3%
2020532
 25,317
 7%
20211,787
 64,317
 17%
2022475
 24,978
 7%
2023529
 31,631
 8%
2024256
 18,701
 5%
2025783
 56,036
 15%
2026786
 35,399
 9%
2027185
 13,777
 4%
Thereafter2,257
 94,123
 23%
 8,158
 $383,177
 100%
The following table shows the geographic locations of our office properties as of December 31, 2016.2017. For more information about our geographic locations, see Note 15,14, Segment Information, of the accompanying consolidated financial statements.
Location 2016 Annualized
Lease Revenue
(in thousands)
 
Leased
Square Feet
(in thousands)
 Percentage of
2016 Annualized
Lease Revenue
 Leased
Square Feet
(in thousands)
 2017 Annualized
Lease Revenue
(in thousands)
 Percentage of
2017 Annualized
Lease Revenue
New York $2,388
 147,318
 38%
San Francisco $104,731
 1,765
 26% 1,663
 106,747
 28%
New York 99,258
 1,782
 25%
Washington, D.C. 846
 53,696
 14%
Atlanta 37,300
 1,572
 9% 1,656
 40,509
 11%
Washington, D.C.(1)
 34,639
 519
 9%
Boston 11,709
 217
 3% 225
 12,081
 3%
Los Angeles 7,967
 249
 2% 249
 8,256
 2%
Other(2)
 100,151
 3,251
 26% 824
 14,570
 4%
 $395,755
 9,355
 100% $7,851
 383,177
 100%
(1)
Includes Annualized Lease Revenue of $22.0 million from our 51% interest in the Market Square Joint Venture; and includes 272,000 square feet for the Market Square Buildings, which amount is prorated to reflect our 51% interest in the Market Square Joint Venture.
(2)
No more than 11% is attributable to any individual geographic location.
The following table shows the industry breakdown of our office tenants as of December 31, 20162017.
Industry 
2016 Annualized
Lease Revenue
(in thousands)
(1)
 
Leased
Square Feet
(in thousands)(2)
 Percentage of
2016 Annualized
Lease Revenue
 Leased
Square Feet
(in thousands)
 2017 Annualized
Lease Revenue
(in thousands)
 Percentage of
2017 Annualized
Lease Revenue
Business Services $68,148
 1,077
 17% $1,281
 88,033
 23%
Depository Institutions 61,748
 1,666
 16% 1,021
 42,242
 11%
Engineering & Management Services 495
 28,591
 8%
Communications 1,010
 26,135
 7%
Legal Services 41,529
 912
 10% 303
 23,305
 6%
Communications 28,642
 1,042
 7%
Security and Commodity Brokers 26,457
 388
 7%
Engineering & Management Services 23,682
 476
 6%
Nondepository Institutions 388
 22,752
 6%
Health Services 19,448
 455
 5% 476
 21,395
 6%
Electric, Gas, and Sanitary Services 18,466
 866
 5% 877
 17,954
 5%
Nondepository Institutions 14,169
 264
 4%
Heavy Construction 12,646
 332
 3%
Security & Commodity Brokers 160
 11,594
 3%
Real Estate 200
 11,062
 3%
Other(3)(1)
 80,820
 1,877
 20% 1,640
 90,114
 22%
 $395,755
 9,355
 100% $7,851
 383,177
 100%
(1) 
Includes Annualized Lease Revenue of $22.0 million from our 51% interest in the Market Square Joint Venture.
(2)
Includes 272,000 square feet for the Market Square Buildings, which amount is prorated to reflect our 51% interest in the Market Square Joint Venture.
(3)
No more than 3%2% is attributable to any individual industry.


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The following table shows the major tenants of our officeoperating properties as of December 31, 2016.2017.
Tenant 
2016 Annualized
Lease Revenue
(in thousands)
(1)
 Percentage of
2016 Annualized
Lease Revenue
 2017 Annualized
Lease Revenue
(in thousands)
 Percentage of
2017 Annualized
Lease Revenue
AT&T $22,579
 6%
Wells Fargo $28,640
 7% 20,522
 5%
AT&T 22,278
 6%
Pershing 18,471
 5% 18,251
 5%
Credit Suisse 16,082
 4%
Westinghouse 15,778
 4%
Twitter 15,894
 4%
NYU 14,802
 4% 15,277
 4%
Westinghouse Electric 14,570
 4%
Yahoo! 14,423
 4% 14,556
 4%
KeyBank 13,939
 4%
Foster Wheeler 12,646
 3%
Other(2)
 238,696
 59%
Other(1)
 261,528
 68%
 $395,755
 100% $383,177
 100%
(1) 
Includes Annualized Lease Revenue of $22.0 million from our 51% interest in the Market Square Joint Venture.
(2)
No more than 3%2% is attributable to any individual tenant.
ITEM 3.LEGAL PROCEEDINGS
From time to time, we are party to legal proceedings, which arise in the ordinary course of our business. We are not currently involved in any legal proceedings of which the outcome is reasonably likely to have a material adverse effect on our results of operations or financial condition, nor are we aware of any such legal proceedings contemplated by governmental authorities.
ITEM 4.MINE SAFETY DISCLOSURES
Not applicable.


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PART II
ITEM 5.MARKET FOR REGISTRANT'S COMMON EQUITY, RELATED STOCKHOLDER MATTERS, AND ISSUER PURCHASES OF EQUITY SECURITIES
Market Information and Holders
Our common stock was listed on the NYSE, on October 10, 2013 under the symbol "CXP." Prior to October 10, 2013, our common stock was not listed on a national securities exchange, and there was no established public trading market for our shares. As of January 31, 20172018, we had approximately 122.5119.9 million shares of common stock outstanding held by a total of 47,695approximately 54,000 stockholders of record.
The closing high and low prices for our stock and dividends declared during 20162017 and 20152016 were as follows:
High Low DividendsHigh Low Dividends
2017 Quarters:     
First$23.43
 $21.20
 $0.20
Second$23.13
 $21.45
 $0.20
Third$22.63
 $20.62
 $0.20
Fourth$23.16
 $20.94
 $0.20
2016 Quarters:          
First$23.20
 $19.81
 $0.30
$23.20
 $19.81
 $0.30
Second$22.77
 $20.20
 $0.30
$22.77
 $20.20
 $0.30
Third$24.63
 $21.24
 $0.30
$24.63
 $21.24
 $0.30
Fourth$22.22
 $20.47
 $0.30
$22.22
 $20.47
 $0.30
2015 Quarters:     
First$27.67
 $24.08
 $0.30
Second$27.45
 $24.55
 $0.30
Third$25.30
 $21.16
 $0.30
Fourth$25.97
 $23.21
 $0.30
Distributions
We intend to make distributions each taxable year (not including a return of capital for federal income tax purposes) equal to at least 90% of our taxable income. One of our primary goals is to pay regular quarterly distributions to our stockholders. The amount of distributions paid and the taxable portion thereof in prior periods are not necessarily indicative of amounts anticipated in future periods.
The amount of distributions to common stockholders is determined by our board of directors and is dependent upon a number of factors including funds deemed available for distribution, based principally on our current and future projected operating cash flows, reduced by capital requirements necessary to maintain our existing portfolio. In determining the amount of distributions to common stockholders, we also consider our future capital needs and future sources of liquidity, as well as the annual distribution requirements necessary to maintain our status as a REIT under the Code. Investments in new property acquisitions and first-generation capital improvements, as well as equity repurchases, are generally funded with recycled capital proceeds from property sales, debt, or cash on hand.


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Performance Graph
The following graph compares the cumulative total return of our common stock with the S&P 500 Index, Morgan Stanley REIT Index, and the FTSE NAREIT US Real Estate Index for the period beginning on October 10, 2013 (the date of our initial listing on the NYSE) through December 31, 2016. Beginning with the year-ended December 31, 2017, we have selected the FTSE NAREIT Equity Office Index to replace the FTSE NAREIT US Real Estate Index to measure our relative total stockholder return. The FTSE NAREIT Equity Office Index is used as the basis for measuring our equity compensation. The graph assumes a $100 investment in each of the indices on October 10, 2013, and the reinvestment of all dividends.
Index October 10, 2013 December 31, 2013 December 31, 2014 December 31, 2015 December 31, 2016 December 31, 2017
Columbia Property Trust $100.00
 $112.10
 $119.00
 $115.70
 $112.50
 $124.00
S&P 500 Index $100.00
 $109.70
 $124.70
 $126.40
 $141.50
 $172.40
Morgan Stanley REIT Index $100.00
 $97.70
 $127.38
 $130.60
 $141.90
 $149.00
FTSE NAREIT US Real Estate Index $100.00
 $97.68
 $127.40
 $131.30
 $141.60
 $147.10
FTSE NAREIT Equity Office Index $100.00
 $99.42
 $125.13
 $125.49
 $142.01
 $149.46
Index October 10, 2013 December 31, 2013 December 31, 2014 December 31, 2015 December 31, 2016
Columbia Property Trust $100.00
 $112.10
 $119.00
 $115.70
 $112.50
S&P 500 Index $100.00
 $109.70
 $124.70
 $126.40
 $141.50
Morgan Stanley REIT Index $100.00
 $97.70
 $127.38
 $130.60
 $141.90
FTSE NAREIT US Real Estate Index $100.00
 $97.68
 $127.40
 $131.30
 $141.60
`


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Share Repurchases
On September 4, 2015, ourOur board of directors approved a stock repurchase program, which authorizesauthorized us to buy up to $200 million of our common stock over a two-year period, ending onfrom September 4, 2015 through September 4, 2017 (the "Stock"2015 Stock Repurchase Program"); and our board of directors authorized a second stock repurchase program to purchase up to an aggregate of $200.0 million of our common stock from September 4, 2017 through September 4, 2019 (the "2017 Stock Repurchase Program").
During the quarter ended December 31, 2016,2017, we purchased and retired the followingdid not purchase or retire any shares in accordance with the 2017 Stock Repurchase Program:Program. Activity relates to the remittance of shares for income taxes associated with accelerated vesting under the LTIP (see Note 8, Equity, to the accompanying consolidated financial statements).
Period 
Total Number
of Shares
Purchased
 
Average
 Price Paid 
per Share
 Total Number of Shares Purchased as Part of Publicly Announced Plan 
Maximum Approximate Dollar Value Available for Future Purchase(2)
October 2016 
 $
 
 $158,683,331
November 2016(1)
 1,150,822
 $21.522
 1,150,822
 $133,914,903
December 2016(1)
 143,110
 $20.963
 143,110
 $130,914,930
Period 
Total Number
of Shares
Purchased
 
Average
 Price Paid 
per Share
 Total Number of Shares Purchased as Part of Publicly Announced Plan 
Maximum Approximate Dollar Value Available for Future Purchase(2)
October 2017 
 $
 
 $194,826,742
November 2017(1)
 336
 $22.77
 
 $194,826,742
December 2017(1)
 15,885
 $22.95
 
 $194,826,742
(1) 
All activity for November and December 20162017 relates to the Stock Repurchase Program, as described above.remittance of shares for income taxes associated with accelerated vesting of certain stock grants made under the LTIP (See Note 8, Equity, to the accompanying consolidated financial statements).
(2) 
Amounts available for future purchase relate only to our 2017 Stock Repurchase Program and represent the remainder of the $200 million authorized by our board of directors for share repurchases.
Unregistered Issuance of Securities
During the years 2016, 2015, and 2014, we did not issue any securities that were not registered under the Securities Act of 1933.
Securities Authorized for Issuance under Equity Compensation Plans
We have reserved 2,000,000 shares of common stock for issuance under our long term incentive plan (the "LTIP") and 25,000 shares of common stock under the a director stock option plan (the "Independent Director Stock Option Plan"). See Note 8, Equity, to the accompanying consolidated financial statements, for more information about these plans. The LTIP was approved by our stockholders in 2013, and the Independent Director Stock Option Plan was approved by our stockholders in 2003, before we commenced our initial public offering and suspended on April 24, 2008. The following table provides summary information about securities issuable under our equity compensation plans as of December 31, 2016:
Plan category 
Number of securities
to be issued upon 
exercise of
outstanding options,
warrants, and rights
 Weighted-average exercise price of outstanding options, warrants, and rights Common stock issued under the LTIP 
Number of securities remaining available for future issuance under equity compensation plans(1)
Equity compensation plans
approved by security holders
 1,375
 $48.00
 570,054
 1,447,571
Equity compensation plans not
approved by security holders
 
 
 
 
Total 1,375
 $48.00
 570,054
 1,447,571
(1)
Includes 1,429,946 shares reserved for issuance under the LTIP and 17,625 shares reserved for issuance under the Independent Director Stock Option Plan.


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ITEM 6.SELECTED FINANCIAL DATA
The following selected financial data for 2017, 2016, 2015, 2014, 2013, and 20122013 should be read in conjunction with the accompanying consolidated financial statements and related notes in Item 8, Financial Statements and Supplementary Data, hereof (amounts in thousands, except per-share data).
As of December 31,As of December 31,
2016 2015 2014 2013 20122017 2016 2015 2014 2013
Total assets(1)
$4,299,793
 $4,678,118
 $4,734,240
 $4,587,301
 $5,724,652 $4,511,539
 $4,299,793
 $4,678,118
 $4,734,240
 $4,587,301 
Total stockholders' equity$2,502,768
 $2,614,194
 $2,733,478
 $2,787,823
 $3,163,980 $2,531,936
 $2,502,768
 $2,614,194
 $2,733,478
 $2,787,823 
Outstanding debt$1,424,602
 $1,735,063
 $1,680,066
 $1,489,179
 $1,650,296 $1,674,176
 $1,424,602
 $1,735,063
 $1,680,066
 $1,489,179 
Outstanding long-term debt$1,302,602
 $1,577,063
 $1,469,245
 $1,477,563
 $1,621,541 $1,302,000
 $1,302,602
 $1,577,063
 $1,469,245
 $1,477,563 
Obligations under capital leases$120,000
 $120,000
 $120,000
 $120,000
 $586,000 $120,000
 $120,000
 $120,000
 $120,000
 $120,000 
                  
Years Ended December 31,Years Ended December 31,
2016 2015 2014 2013 20122017 2016 2015 2014 2013
Total revenues(2)
$473,543
 $566,065
 $540,797
 $526,578
 $494,271 $289,000
 $473,543
 $566,065
 $540,797
 $526,578 
Loss from unconsolidated joint venture$(7,561) $(1,142) $
 $
 $ 
Revenues from discontinued operations(2)
$
 $
 $
 $119
 $60,046 
Income (loss) from unconsolidated joint venture$2,651
 $(7,561) $(1,142) $
 $ 
Net income$84,281
 $44,619
 $92,635
 $15,720
 $48,039 $176,041
 $84,821
 $44,619
 $92,635
 $15,720 
                  
Net cash provided by operating activities$193,091
 $223,080
 $236,906
 $218,329
 $252,839 $61,924
 $193,091
 $223,080
 $236,906
 $218,329 
Net cash provided by (used in) investing activities$525,613
 $(576,699) $(23,788) $495,389
 $31,047 $(347,723) $525,613
 $(576,699) $(23,788) $495,389 
Net cash provided by (used in) financing activities$(535,264) $263,474
 $(163,183) $(667,417) $(269,729)$79,281
 $(535,264) $263,474
 $(163,183) $(667,417)
Distributions paid(3)
$148,474
 $112,570
 $149,962
 $191,473
 $256,020 $109,561
 $148,474
 $112,570
 $149,962
 $191,473 
Net proceeds raised through issuance of our common stock(3)
$
 $
 $
 $46,402
 $118,388 $
 $
 $
 $
 $46,402 
Stock repurchases(3)(4)
$(59,462) $(53,986) $(17,057) $
 $(349,843)
Net debt and bond proceeds (repayments)(3)
$(311,769) $378,995
 $(11,739) $(160,940) $(28,191)$249,573
 $(311,769) $378,995
 $(11,739) $(160,940)
Acquisitions, earnest money paid, and investments in real estate(3)
$(39,521) $(1,145,402) $(416,991) $(44,856) $(233,798)$(691,574) $(39,521) $(1,145,402) $(416,991) $(44,856)
Per weighted-average common share data:         
Net income – basic(4)
$0.68
 $0.36
 $0.74
 $0.12
 $0.35 
Net income – diluted(4)
$0.68
 $0.36
 $0.74
 $0.12
 $0.35 
Distributions declared(4)
$1.20
 $1.20
 $1.20
 $1.44
 $1.88 
Weighted-average common shares
outstanding – basic(4)
123,130
 124,757
 124,860
 134,085
 136,672 
Weighted-average common shares
outstanding – diluted
(4)
123,228
 124,847
 124,918
 134,085
 136,672 
Per Weighted-Average Common Share Data:Per Weighted-Average Common Share Data:        
Net income – basic$1.45
 $0.68
 $0.36
 $0.74
 $0.12 
Net income – diluted$1.45
 $0.68
 $0.36
 $0.74
 $0.12 
Distributions declared$0.80
 $1.20
 $1.20
 $1.20
 $1.44 
Weighted-average common shares
outstanding – basic
120,795
 123,130
 124,757
 124,860
 134,085 
Weighted-average common shares
outstanding – diluted
121,159
 123,228
 124,847
 124,918
 134,085 
(1) 
The amounts for 2014 through 2012and 2013 have been adjusted to conform with 2017, 2016, and 2015 presentation by reclassifying debt issuance costs, on the accompanying consolidated balance sheets, other than those related to our revolving credit facility, from a deferred financing costs assettotal assets to an offset to line of credit, term loans, and notes payable liability and bonds payable.outstanding debt.
(2) 
The amounts for 2014 through 2012and 2013 have been adjusted to classify revenues generated by certain sold properties as discontinued operations (see Note 12, Discontinued Operations, to the accompanying consolidated financial statements).
operations.
(3) 
Activity is presented on a cash basis. Please refer to our accompanying consolidated statements of cash flows.
(4) 
Where applicable, shareStock repurchases in 2013 relate to redemptions under a tender offer and per-share amounts have been retroactively adjusteda redemption plan in place prior to reflect the impactour listing. Stock repurchases in 2017, 2016, and 2015 were made under board-approved stock repurchase plans or in settlement of the August 14, 2013, four-for-one reversetaxes related to stock split for all periods presented (See Note 8, Equity, to the accompanying consolidated financial statements).
compensation.




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ITEM 7.MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
The following discussion and analysis should be read in conjunction with the Selected Financial Data in Item 6, Selected Financial Data, above and our accompanying consolidated financial statements and notes thereto. See also Cautionary Note Regarding Forward-Looking Statements preceding Part I.
Overview
Executive Summary
Our primary strategic objective is to generate long-term shareholder returns from a combination of growing cash flows and appreciation in the values of our properties, through investments inby owning and operating high-quality office properties principally located principally in high-barrier-to-entry markets. Capital recycling initiatives have enabled us to improve our concentration in key markets and central business districts, as well as to reduce our exposure to single-tenant assets. During 2015 and 2016, we sold 18 properties in outlying markets for approximately $1.2 billion, and reinvested those proceeds in acquisitions in New York and Boston, and in targeted capital improvements for our existing portfolio. In January of 2017, we sold five additional assets for $0.5 billion, which allowed us to exit the Houston and Cleveland markets. This year, we will be focusedWe concentrate on reinvesting those proceeds into strategic opportunities within our key markets. We typically target acquisition opportunitiesoffice buildings that are competitive within the top tier of their markets or that will be repositioned as such through value-add initiatives. We believe that theseIn addition, our investment objectives will allow us to optimizeinclude optimizing our portfolio allocation between stabilized investments and more growth-oriented, value-add investments, and at the same time, continue to increase our portfolio allocations towith an emphasis on central business districts and multi-tenant buildings. Transitioning
We recently completed a multi-year capital recycling program that involved selling more than 50 properties in geographically dispersed markets for aggregate proceeds of $3.6 billion, and reinvested this capital in New York, San Francisco, Washington, D.C., and Boston. During the portfoliosecond half of 2017, we executed the following transactions:
On July 6, 2017, we formed a strategic partnership with Allianz Real Estate of America LLC ("Allianz") to more growth-oriented, value-addincrease our operating scale in key markets by freeing-up capital for additional investment. We consummated the partnership by simultaneously selling a 22.5% interest in two of our San Francisco properties, is likely333 Market Street and University Circle, to cause some dilutionAllianz for $234.0 million, and by acquiring a 49.5% interest in earnings114 Fifth Avenue in Manhattan from Allianz for $108.9 million. In February 2018, we sold an additional 22.5% interest in 333 Market Street and University Circle to Allianz for $235.3 million.
On October 11, 2017, we acquired a period55% interest in 1800 M Street, a 10-story office building in Washington, D.C., for $231.6 million through a joint venture with Allianz.
On October 11, 2017, we acquired 245-249 West 17th Street, two interconnected 12- and six-story towers totaling 281,000 square feet of time; however,office and retail space, and 218 West 18th Street, a 12-story, 166,000-square-foot office building, in New York for $514.1 million.
On November 28, 2017, we believeacquired 149 Madison Avenue in New York, a 12-story, 127,000-square-foot office building for $87.7 million, subject to a ground lease that expired in January 2018. We are planning to redevelop this transition will improve our growth potential over the longer term.property.
In 2017, leasingWe will continue to pursue strategic investment opportunities in our target markets, as well as selective property dispositions.
Leasing continues to be a key area of focus for both of vacant space and in managing upcoming expirations. During 2016,2017, we have leased 1.1over 2.0 million square feet of space and addressed some of our most significant near-term expirations:expirations and vacancies:
In April,At University Circle, we executed a 30-year, full buildingfive-year, 119,000-square-foot lease of 390,000-square feet atrenewal with DLA Piper to extend the 222 East 41stlease to June 2023 and address our most significant 2018 expiration. At 650 California Street, property inwe executed an eight-year, 86,000-square-foot lease with Affirm; a 22,000-square-foot renewal and expansion with an existing tenant; and a 12-year, 61,000-square-foot lease with WeWork.
In New York, which replacedat 229 West 43rd Street, we expanded Snap Inc.'s leased space by 58,000 square feet to a total of 154,000 square feet, and extended the lease for the majority of the building that was scheduled to expire later in 2016;
In June, we executed a 130,000-square foot, full-building lease renewal2032; and at the SanTan Corporate Center in Phoenix, Arizona, for one of the two buildings. The lease rolled rents up slightly with a long-time tenant, and positioned the property to be sold at favorable terms in December.
In June, we executed a 35,000-square-foot lease at the 315 Park Avenue South, Building in New York, which brought the property to 97% leased;executed 68,000 square feet of new leasing, and a 17,000-square-foot lease expansion with Bustle Media Group.
In November,Atlanta, at One Glenlake, we executed a 15-year, 69,000-square-foot10-year, 66,000-square-foot lease, at the 80 M Street Building in Washington, D.C., which,and an 11-year, 40,000-square-foot lease renewal and expansion along with other leasing atseveral smaller leases. At Three Glenlake, we executed a 12-year, 161,000-square-foot lease with Arby's. This lease is for a portion of the property, brought it to 87% leased.
We continue to maintain a flexible balance sheet with low leverage and an emphasis on unsecured borrowings. During 2015 and 2016, we refinanced approximately $1.3 billion of unsecured debt and repaid $371.5 million of mortgage loans.space vacated by the exisiting tenant, whose lease is expiring in December 2018. As a result overof this period,leasing activity, the One & Three Glenlake property is 99.3% leased at year end.
In Pittsburgh, at Cranberry Woods, we extended our weighted-average debt maturity from 3.3 yearsexecuted a lease renewal and extension with Westinghouse, extending the 824,000-square-foot lease to 6.1 years(1), decreased our weighted-average cost of borrowing from 4.24% per annum to 3.63%(1) per annum, and increased our unencumbered pool of assets as a percentage of gross real estate assets from 61.7% to 78.8%(1). Further, our board of directors adopted a stock repurchase program that authorizes us to buy up to $200.0 million of our common stock through September of 2017. We believe such a program enables us to benefit from market downturns, which may cause our stock to be undervalued from time to time. In 2016, we repurchased $52.8 million of our common stock.2032.
(1)
Statistics include 51% of the debt held by the the Market Square Joint Venture, in which we own an interest through an unconsolidated joint venture.


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We continue to maintain a strong and flexible balance sheet with a weighted-average cost of borrowing of 3.35%(1) per annum as of December 31, 2017. Our debt capital allocation favors unsecured borrowings with 92%(1) of our portfolio unencumbered by mortgages. Our debt maturities are well-laddered over the next nine years, and $752.0 million of the borrowings outstanding at year-end may be repaid prior to maturity, in part or in full, without penalty. Our stock repurchase program allows us to take advantage of market opportunities from time to time when we believe our stock is undervalued. During 2017, we repurchased $57.6 million of our common stock (2.7 million shares at an average price of $21.46 per share). Since September 2015, under our stock repurchase programs, we have repurchased an aggregate of $121.4 million of common stock at an average price of $21.85 per share.
(1)
Statistics include our ownership interest in the gross real estate assets and debt at properties held through unconsolidated joint ventures as described in Note 4, Unconsolidated Joint Ventures, of the accompanying financial statements; and exclude the 263 Shuman mortgage note, as the note matured in July 2017 and we are in the process of transferring the property to the lender.
Key Performance Indicators
Our operating results depend primarily upon the level of income generated by the leases at our properties. Occupancy and rental rates are critical drivers of our lease income. Historically,Over the last year, our portfolio has been more than 90% leased. During 2016 and 2015, our average portfolio percentage leased ranged from 90.6% at December 31, 2016 to 93.3%.96.2% at December 31, 2017. The following table sets forth details related to recent leasing activities, which drive changes in our rental revenues.revenues:
 Years Ended December 31, 
 2016 2015 
Total number of leases54
 75
 
Weighted-average lease term (months)316
 163
 
Square feet of leasing - renewal(1)
275,653
 757,283
 
Square feet of leasing - new(1)
746,290
 486,572
 
Total square feet of leasing(1)
1,021,943
 1,243,855
 
Rent leasing spread - renewal(2)
27.4% 13.3% 
Rent leasing spread - new(2)(3)
18.5%
(4) 
49.9% 
Rent leasing spread - all leases(2)(3)
19.0% 27.4%
(5) 
Tenant improvements, per square foot - renewal$35.75
 $27.91
 
Tenant improvements, per square foot - new$162.03
(4) 
$76.20
 
Tenant improvements, per square foot - all leases$155.16
 $49.70
 
Leasing commissions, per square foot - renewal$14.31
 $12.46
 
Leasing commissions, per square foot - new$41.91
(4) 
$40.06
 
Leasing commissions, per square foot - all leases$40.41
 $24.91
 
 Years Ended December 31,
 2017 2016
Total number of leases62
 54
Square feet of leasing – renewal(1)
1,288,056
 275,653
Square feet of leasing – new(1)
716,513
 746,290
Total square feet of leasing2,004,569
 1,021,943
Average lease term (months)103
 316
Tenant improvements, per square foot – renewal$20.17
 $35.75
Tenant improvements, per square foot – new$85.55
 $162.03
Tenant improvements, per square foot – all leases$55.09
 $155.16
Leasing commissions, per square foot – renewal$12.37
 $14.31
Leasing commissions, per square foot – new$27.76
 $41.91
Leasing commissions, per square foot – all leases$20.59
 $40.41
    
Rent leasing spread – renewal(2)
28.2% 27.4%
Rent leasing spread – new(3)
63.3% 18.5%
Rent leasing spread – all leases(2)(3)
43.6% 19.0%
(1) 
Includes 51%our proportionate share of therenewal and new leasing at the Market Square buildings, which we ownproperties owned through an unconsolidated joint venture.ventures.
(2) 
Rent leasing spreads for renewal leases are calculated based on the change in base rental income measured on a straight-line basis.
(3) 
Rent leasing spreads are only calculated for new leases on tenant spacesare calculated only for space that havehas been vacant less than one year.
(4)
In the second quarter of 2016, we executedyear, and are measured on a new 390,000-square-foot, 30-year lease at our 222 East 41st Street property with NYU Langone Medical, which resulted in positive rent leasing spreads of 14.4%, tenant improvements of $180.10 per square foot, and leasing commissions of $44.90 per square foot.
(5)
In 2015, rent leasing spreads were positive due to a lease expansion and extension with the anchor tenant at our 221 Main Street building in San Francisco, California, and a new lease for 45,000 square feet at 315 Park Avenue South in New York, partially offset by the impact of a lease renewal with CH2M at South Jamaica Street.straight-line basis.
In 2017, rent leasing spreads have been significantly positive (43.6%) due to extending the 119,000-square-foot lease with DLA Piper at University Circle in San Francisco and leasing 230,000 square feet at 650 California Street in San Francisco. The leasing at 650 California Street has required significant tenant improvements; however, the net economic impact of leasing at 650 California Street is favorable. Positive rent leasing spreads for renewal leases are partially offset by a slight rent roll-down for the 824,000-square-foot lease extension and amendment executed with Westinghouse at Cranberry Woods in Pittsburgh in the fourth quarter of 2017. In 2016, we executed a new 390,000-square-foot, 30-year lease at our 222 East 41st Street property with NYU Langone Medical, which resulted in positive rent leasing spreads of 14.4%, tenant improvements of $180.10 per square foot, and leasing commissions of $44.90 per square foot. Over the next 12 months, approximately 755,00094,000 square feet of our leases (approximately 8.8%2% of our office portfolio based on revenues) are scheduled to expire. Approximately 354,000 of this total relates to a lease with OfficeMax at our 263 Shuman Boulevard property. The tenant vacated this property in the second quarter of 2015, and we are in the process of working to transfer this property to the lender. The remainder of the near-term expirations primarily relates to our properties in New York and San Francisco, and we expect to replace these leases with starting rates above those currently in place at the properties.
Liquidity and Capital Resources
Overview
Cash flows generated from the operation of our properties are primarily used to fund recurring expenditures and stockholder dividends. The amount of distributions to common stockholders is determined by our board of directors and is dependent upon a


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number of factors, including funds deemed available for distribution based principally on our current and future projected operating cash flows, reduced by capital requirements necessary to maintain our existing portfolio. In determining the amount of distributions to common stockholders, we also consider our future capital needs and future sources of liquidity, as well as the annual distribution requirements necessary to maintain our status as a REIT under the Code. We have transformed the composition of our portfolio by selling suburban assets and reinvesting in assets in high-barrier-to-entry markets that offer lower initial yields and higher potential for growth over time. As a result, our board of directors elected to adjust our payout level to be consistent with our current investment objectives, by reducing the quarterly stockholder distribution rate from $0.30 per share to $0.20 per share beginning with the first quarter of 2017. This rate has been maintained through the first quarter of 2018. We believe this dividend rate is sustainable over the near and medium term and offers the potential for growth over the long term.
Investments in new property acquisitions and first-generation capital improvements are generally funded with capital proceeds from property sales, debt, or cash on hand. Beginning with the first quarter of 2017, our board of directors has elected to reduce the quarterly stockholder distribution rate from $0.30 per share to $0.20 per share to adjust to a payout level consistent with our current investment objectives. We’ve transformed the composition of our portfolio by selling suburban assets, and acquiring assets in high-barrier to entry markets, which offer lower initial yields and higher potential for growth over time. We believe the new dividend rate is sustainable over the near and medium term, and offers the potential for growth over the long-term.


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Short-termShort-Term Liquidity and Capital Resources
During 2016,2017, we generated net cash flows from operating activities of $193.1$61.9 million, which consists primarily of receipts from tenants for rent and reimbursements, reduced by payments for operating costs, administrative expenses, interest expense, and interest expense.lease inducements. During the same period, we paid total distributions to stockholders of $148.5 million.$109.6 million, which included dividend payments for four quarters ($36.7 million for the fourth quarter of 2016 and an aggregate of $72.9 million for the first three quarters of 2017). Distributions to stockholders exceeded net cash flow from operating activities for 2017 primarily due to the impact of timing differences between selling assets and redeploying capital, and of new and renewal leases in free rent periods. Properties acquired in 2017 and recent leases are expected to contribute to additional cash flow from operations in future periods.
During 2016,2017, we generatedsold five wholly owned properties and partial interests in two additional properties for net proceeds of $603.7 million from property sales and issued $350.0 million of bonds payable.$737.6 million. We used these proceeds, along with a $300.0 million bridge loan and borrowings on our line of credit, to repay debt ($655.0 million), fund acquisitions of three wholly owned properties for $604.8 million and partial interests in two properties for $353.6 million; the repayment of $197.8 million of mortgage notes; leasing and capital projects ($88.1 million)at our consolidated and repurchase sharesjoint venture-owned properties of our common stock ($54.0 million). In January, we generated an additional $526.5 million from the sale$129.0 million; and share repurchases of Houston and Key Center assets. $59.5 million.
Over the short-term, we expect our primary sources of capital to be operating cash flows and future debt financings.debt. We expect that our principal demands for funds will be property acquisitions, capital improvements to our existing portfolio, stock repurchases, stockholder distributions, operating expenses, and interest and principal payments on current and maturing debt. On February 1, 2018, we sold a second 22.5% interest in University Circle and 333 Market Street to our joint venture partner, Allianz, for $235.3 million. We used the proceeds from this transaction to reduce borrowing on our Revolving Credit Facility and the $300 Million Bridge Loan, both described below. We believe that we have adequate liquidity and capital resources to meet our other current obligations as they come due, including 2017our remaining 2018 debt maturities of $122.0$202.9 million. As of January 31, 2017,February 2, 2018, we had access to $440 million of the entire $500 million borrowing capacity under the Revolving Credit Facility, in addition to $671.8 million of cash on hand.Facility.
Long-termLong-Term Liquidity and Capital Resources
Over the long term, we expect that our primary sources of capital will include operating cash flows, select property dispositions, and proceeds from secured or unsecured borrowings. We expect that our primary uses of capital will continue to include stockholder distributions; repaying or refinancing debt; acquisitions; and capital expenditures, such as building improvements, tenant improvements, and leasing costs; and repaying or refinancing debt.costs.
Consistent with our financing objectives and operational strategy, we continue to maintainhave generally maintained debt levels historically less than 40% of the cost of our assets. We believe that preserving investor capital while generating stable current income is in the best interest of our stockholders. Our debt-to-real-estate-asset ratio is calculated using the outstanding debt balance and real estate at cost. As of December 31, 2016,2017, our debt-to-real-estate-asset ratio, including 51% of the debt and real estate at the Market Square Joint venture, in which we own an interest through an unconsolidated joint venture, was approximately 34.6%38.7%.
Bridge Loan
We have a $300.0 million, one-year, unsecured loan (the "$300 Million Bridge Loan"), which is set to mature on November 27, 2018. The $300 Million Bridge Loan bears interest at either (ii) LIBOR, plus an applicable margin ranging from 0.90% to 1.75% for LIBOR loans, or (ii) an alternate base rate, plus an applicable margin ranging from 0.00% to 0.75%. The $300 Million Bridge Loan provides for one six-month extension option to May 24, 2019, subject to certain fees and the satisfaction of certain other conditions.


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Revolving Credit Facility
Our Revolving Credit Facility has a capacity of $500.0 million and matures in July 2019, with two six-month extension options. As of December 31, 2016,2017, we had no$152.0 million in outstanding balanceborrowings on the Revolving Credit Facility. Amounts outstanding under the Revolving Credit Facility bear interest at the London Interbank Office Rate ("LIBOR"), plus an applicable margin ranging from 0.875% to 1.55% for LIBOR borrowings, or an alternate base rate, plus an applicable margin ranging from 0.00% to 0.55% for base rate borrowings, based on our applicable credit rating. The per annum facility fee on the aggregate revolving commitment (used or unused) ranges from 0.125% to 0.30%, also based on our applicable credit rating. Additionally, we have the ability to increase the capacity of the Revolving Credit Facility, along with the $300 Million Term Loan, which provides for four accordion options for an aggregate additional amount of up to $400 million, subject to certain limitations.
Term Loans
We have a $300.0 million unsecured single-draw term loan, which matures in July 2020 (the "$300 Million Term Loan"), and, along with the Revolving Credit Facility, provides for four accordion options for an aggregate amount of up to $400 million, subject to certain conditions. The $300 Million Term Loan bears interest, at our option, at either (i) LIBOR, plus an applicable margin ranging from 0.90% to 1.75% for LIBOR loans, or (ii) an alternate base rate, plus an applicable margin ranging from 0.00% to 0.75% for base rate loans, based on our applicable credit rating.
We have a $150.0 million unsecured single-draw term loan, which matures in July 2022 (the "$150 Million Term Loan"). The $150 Million Term Loan bears interest, at our option, at either (i) LIBOR, plus an applicable margin ranging from 1.40%0.90% to 2.35%1.75% for LIBOR loans, or (ii) alternative base rate, plus an applicable margin ranging from 0.40%0.00% to 1.35%0.75% for base rate loans. The interest rate on the $150 Million Term Loan is effectively fixed with an interest rate swap agreement, which is designated as a cash flow hedge. Based on the terms of the interest rate swap and our current credit rating, the interest rate on the $150 Million Term Loan is effectively fixed at 3.52%3.07%.


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Debt Covenants
The $300 Million Term Loan, $300 Million Bridge Loan, the $150 Million Term Loan, and the Revolving Credit Facility contain the following restrictive covenants:
limits the ratio of secured debt to total asset value, as defined therein, to 40% or less;
requires the fixed charge coverage ratio, as defined therein, to be at least 1.50:1.00;
limits the ratio of debt to total asset value, as defined therein, to 60% or less;
requires the ratio of unencumbered adjusted net operating income, as defined therein, to unsecured interest expense, as defined therein, to be at least 1.75:1.00;
requires the ratio of unencumbered asset value, as defined therein, to total unsecured debt, as defined therein, to be at least 1.66:1.00; and
requires maintenance of certain minimum tangible net worth balances.
As of December 31, 2016,2017, we believe we were in compliance with the restrictive covenants on these outstanding debt obligations.
Bonds Payable
In August 2016, we issued $350.0 million of ten-year,10-year, unsecured 3.650% senior notes at 99.626% of their face value (the "2026 Bonds Payable") under our Universal Shelf Registration Statement (defined below). We received proceeds from the 2026 Bonds Payable, net of fees, of $346.4 million, which were used to prepay our $250 million bonds payable, originally due in April of 2018. The 2026 Bonds Payable require semi-annual interest payments in February and August based on a contractual annual interest rate of 3.650%. The principal amount of the 2026 Bonds Payable is due and payable on the maturity date, August 15, 2026.
In March 2015, we issued $350.0 million of ten-year,10-year, unsecured 4.150% senior notes at 99.859% of their face value under our Universal Shelf Registration Statement (the "2025 Bonds Payable"). We received proceeds from the 2025 Bonds Payable, net of fees, of $347.2 million, a portion of which was used to repay a bridge loan, which was originated in January 2015. The 2025 Bonds Payable require semi-annual interest payments in April and October based on a contractual annual interest rate of 4.150%. The principal amount of the 2025 Bonds Payable is due and payable on the maturity date, April 1, 2025.
The restrictive covenants on the 2026 Bonds Payable and the 2025 Bonds Payable as defined pursuant to an indenture include:
a limitation on the ratio of debt to total assets, as defined, to 60%;
limits to our ability to incur debt if the consolidated income available for debt service to annual debt service charge, as defined, for four previous consecutive fiscal quarters is less than 1.5:1 on a pro forma basis;


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limits to our ability to incur liens if, on an aggregate basis for us, the secured debt amount would exceed 40% of the value of the total assets; and
a requirement that the ratio of unencumbered asset value, as defined, to total unsecured debt be at least 150% at all times.
As of December 31, 2016,2017, we believe we were in compliance with the restrictive covenants on the 2026 Bonds Payable and the 2025 Bonds Payable.
Debt Repayments, Maturities, and Interest Payments
During 20162017 and 2015,2016, we made the following debt repayments:
On August 17, 2017, we repaid the $124.8 million balance of the 650 California Street building mortgage note, which was originally scheduled to mature on July 1, 2019. Columbia Property Trust recognized a loss on early extinguishment of debt of $0.3 million related to unamortized deferred financing costs.
On March 10, 2017, we repaid the $73.0 million balance of the 221 Main Street building mortgage note, which was originally scheduled to mature on May 10, 2017. Columbia Property Trust recognized a loss on early extinguishment of debt of $45,000 related to unamortized deferred financing costs.
On October 3, 2016, a portion of the proceeds from the sale of the 80 Park Plaza Property was used to repay the $99.0 million remaining outstanding balance on our Revolving Credit Facility. No additional borrowings were made against the Revolving Credit Facility during the remainder of 2016.
On September 2, 2016, the proceeds from the 2026 Bonds Payable, as described above, were used to redeem $250.0 million of seven-year, unsecured 5.875% senior notes due April 2018, including a $17.9 million make-whole payment reflectedrecorded as an early loss on extinguishment of debt in the accompanying consolidated statement of operations.
On June 30, 2016, we used borrowings on the Revolving Credit Facility to repay the $39.0 million SanTan Corporate Center mortgage notes, which were scheduled to mature on October 11, 2016, resulting in the write offwrite-off of approximately $10,000 of related unamortized financing costs, which are included in loss on early extinguishment in the accompanying statements of operations.
On April 1, 2016, we repaid the $119.0 million remaining on oura $300 million, six-month, unsecured loan, which was used to finance a portion of the 229 West 43rd Street Building acquisition in August of 2015.2015 (the "2015 Bridge Loan"). The $300 Million2015 Bridge


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Loan was scheduled to mature on August 4, 2016. We recognized a loss on early extinguishment of debt of $82,000 related to unamortized deferred financing costs.
On January 6, 2015, we entered into a $300.0 million, six-month, unsecured loan to finance a portion of the real estate assets purchased in January 2015. On March 12, 2015, we fully repaid the loan with proceeds from the 2025 Bonds Payable, at which time we recognized a loss on early extinguishment of debt of $0.5 million as a result of writing off the unamortized deferred financing costs. The loan was set to mature on July 6, 2015.
On June 1, 2015, we repaid the mortgage note for the 333 Market Street Building for $206.5 million and the related interest rate swap agreement expired. The maturity date for the 333 Market Street Building mortgage note was July 1, 2015.
On July 1, 2015, in connection with the 11 Property Sale, as described in Note 3, Real Estate Transactions, to the accompanying financial statements, we repaid the mortgage note for the 215 Diehl Road Building, one of the properties included in the 11 Property Sale, for $21.0 million. As a result, we recognized a loss on early extinguishment of debt of $2.1 million, primarily as a result of a prepayment premium. The maturity date for the 215 Diehl Road Building mortgage note was July 1, 2017.
On July 13, 2015, we repaid the $105.0 million mortgage note on the 100 East Pratt Street Building at par. The maturity date for the 100 East Pratt Street Building mortgage note was June 11, 2017.
During 20162017 and 20152016, we made interest payments of approximately $27.8$21.5 million and $54.0$27.8 million, respectively, related to our term loans, line of credit, and notes payable. Interest payments on the 2026 Bonds Payable begin in February 2017. InterestDuring 2017 and 2016, we made interest payments of $27.4 million and $28.0 million, and $22.7 million were maderespectively, on the 2025 Bonds Payable and the 2018 Bonds Payable during 2015 and 2016, respectively.our bonds payable.
Universal Shelf Registration Statement
We have on file a universal shelf registration statement on Form S-3 (No. 333-198764) with the Securities and Exchange Commission (the "Universal Shelf Registration Statement"), which was effective upon filing in September 2014. The Universal Shelf Registration Statement provides us with flexibility to offer, from time to time and in one or more offerings, debt securities, common stock, preferred stock, depositary shares, warrants, or any combination thereof. The terms of any such future offerings would be established at the time of an offering.
Contractual Commitments and Contingencies
As of December 31, 2016,2017, our contractual obligations will become payable in the following periods (in thousands):
Contractual Obligations Total 2017 2018-2019 2020-2021 Thereafter Total 2018 2019-2020 2021-2022 Thereafter
Debt obligations(1)(2)
 $1,590,353
 $127,728
 $146,875
 $300,000
 $1,015,750
 $1,790,926
 $323,176
 $452,000
 $150,000
 $865,750
Interest obligations on debt(2)(3)
 362,006
 54,267
 99,486
 84,680
 123,573
 319,920
 60,577
 95,856
 78,698
 84,789
Capital lease obligations(3)(4)
 120,000
 
 
 120,000
 
 120,000
 
 
 120,000
 
Operating lease obligations(5) 208,442
 2,642
 5,342
 5,342
 195,116
 1,389,662
 9,222
 18,622
 18,872
 1,342,946
Total $2,280,801
 $184,637
 $251,703
 $510,022
 $1,334,439
 $3,620,508
 $392,975
 $566,478
 $367,570
 $2,293,485
(1) 
Includes 51% of the debt and interest obligations for the Market Square Joint Venture, in which we own an interest through an unconsolidated joint venture. The Market Square Joint Venture holdshas a $325 million mortgage noteloan on the Market Square Buildings, bearingwhich bears interest at 5.07% and maturingmatures on July 1, 2023. We guarantee $16.1$11.2 million of the Market Square Buildings note payablemortgage loan (see Note 7, Commitments & Contingencies, to the accompanying financial statements).
(2)
Debt obligations exclude the $49.0 million 263 Shuman Boulevard mortgage note, which matured in July 2017. We are in the process of working to transfer this property to the lender in settlement of the mortgage note.
(3) 
Interest obligations on variable-rate debt are measured at the rate at which they are effectively fixed with interest rate swap agreements (where applicable). or the rate in effect as of December 31, 2017. Interest obligations on all other debt instruments are measured at the contractual rate. See Item 7A, Quantitative and Qualitative Disclosure About Market Risk, for more information regarding our interest rate swaps.
(3)(4) 
Amounts include principal obligations only. We made interest payments on these obligations of $7.2 million during 2016,2017, all of which was funded with interest income earned on the corresponding investments in development authority bonds.


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(5)
These obligations are related to ground leases at certain properties, including 49.5% of the ground lease obligation at 114 Fifth Avenue, based on our ownership interest in the unconsolidated joint venture that owns that property, and our corporate office lease. In addition to the amounts shown, certain lease agreements include provisions that, at the option of the tenant, may obligate us to expend capital to expand an existing property or provide other expenditures for the benefit of the tenant, including a commitment to contribute $54.7 million toward remaining leasehold improvements at our 222 East 41st Street property.
Results of Operations
Overview
As of December 31, 2016, we2017, Columbia Property Trust owned 21 office19 operating properties, of which 14 were wholly owned and five were owned through unconsolidated joint ventures. These properties are located primarily in New York, San Francisco, Washington, D.C., and Atlanta, and were approximately 90.6%96.2% leased including 51%as of the Market Square buildings, which we own through an unconsolidated joint venture, and one hotel.December 31, 2017. Our period-over-period operating results are heavily impacted by the real estate activities set forth in the Transaction Activity section of Item 1, Business, which includeincluding acquisitions and dispositions made directly and the transfer of the Market Square Buildings to anthrough unconsolidated joint venture.ventures. Other than real estate transactions, we expect real estate operating income to fluctuatevary, primarily based on leasing activity over the near-term.near term.
Comparison of the Year Ended December 31, 2017 Versus the Year Ended December 31, 2016
Rental income was $257.1 million for 2017, which represents a decrease from $366.2 million for 2016. The decrease is primarily due to dispositions ($94.3 million) and transferring University Circle and 333 Market Street to unconsolidated joint ventures ($24.4 million), partially offset by the acquisitions in the fourth quarter of 2017 ($8.4 million). We expect future rental income to vary based on recent and future investing and leasing activities.
Tenant reimbursements and property operating costs were $23.5 million and $87.8 million, respectively, for 2017, which represents a decrease from $69.8 million and $155.0 million, respectively, for 2016. The decrease in tenant reimbursements is primarily due to dispositions ($35.5 million), transferring University Circle and 333 Market Street to unconsolidated joint ventures ($4.9 million), and the new net lease at 222 East 41st Street ($3.3 million). The decrease in property operating costs is primarily due to dispositions ($58.3 million), the new net lease at 222 East 41st Street ($9.9 million), and transferring University Circle and 333 Market Street to unconsolidated joint ventures ($5.5 million), partially offset by the acquisitions in the fourth quarter of 2017 ($2.2 million). Tenant reimbursements and property operating costs are expected to vary with future leasing activities and other changes in our portfolio.
Hotel income, net of hotel operating costs, was $(0.8) million for 2017, which represents a decrease as compared with $4.0 million for 2016, due to the sale of the Key Center Marriott on January 31, 2017.
Asset and property management fee income was $3.8 million for 2017, which represents an increase as compared with $2.1 million for 2016. The increase is due to the asset and property management services we began to provide to several properties owned in unconsolidated joint ventures in 2017, including 333 Market Street, University Circle, and 1800 M Street. Asset and property management fees have also been earned for services provided to the Market Square Joint Venture since its inception in the fourth quarter of 2015. We anticipate future asset and property management fee income to increase as we earn fees from the newly established joint ventures for full periods (see Note 4, Unconsolidated Joint Ventures).
Other property income was $3.3 million for 2017, which represents a decrease as compared with $12.8 million for 2016, primarily due to earning an early termination fee of $6.8 million at 222 East 41st Street in June 2016 and $4.0 million for other lease terminations in 2016. The terminated lease at 222 East 41st Street was replaced with a full-building lease, which commenced in the fourth quarter of 2016. Other property operating income is expected to vary in the future, based on additional lease restructuring activities.
Asset and property management fee expenses were $0.9 million for 2017, which represents a decrease as compared with $1.4 million for 2016, primarily due to the sale of the Key Center Marriott in January 2017 ($0.4 million). Future asset and property management fee expenses are expected to remain stable in the near term and may increase as a result of future investing activities.
Depreciation was $80.4 million for 2017, which represents a decrease as compared with $108.5 million for 2016. The decrease is primarily due to dispositions ($24.5 million) and transferring University Circle and 333 Market Street to unconsolidated joint ventures ($6.6 million), partially offset by acquisitions in the fourth quarter of 2017 ($2.3 million). Depreciation is expected to vary based on recent and future investing activities.
Amortization was $32.4 million for 2017, which represents a decrease as compared with $56.8 million for 2016. The decrease is primarily due to intangibles written off due to the early termination or expiration of leases ($11.1 million), dispositions ($10.9 million), and transferring University Circle and 333 Market Street to unconsolidated joint ventures ($2.5 million). We expect future amortization to vary based on recent and future investing activities.


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Effective July 1, 2017, we began to specifically identify general and administrative costs incurred to manage assets owned by our unconsolidated joint ventures. The method for measuring aggregate general and administrative expenses has not changed. Aggregate general and administrative expenses were $36.4 million for 2017, which represents an increase as compared to $33.9 million for 2016, primarily due to additional vesting under our stock-based incentive plan ($3.0 million) and expenses incurred for managing unconsolidated joint ventures ($1.5 million), partially offset by prior-year costs incurred related to the development of our regional management platform ($1.2 million), prior-year lease termination activity ($0.5 million), and prior period bad debt expenses ($0.2 million). General and administrative expenses corporate are expected to remain at similar levels over the near term; and general and administrative expenses unconsolidated joint ventures are expected to vary as a result of future joint venture activity.
Interest expense was $60.5 million for 2017, which represents a decrease as compared with $67.6 million for 2016, primarily due to mortgage note payoffs ($5.4 million), bond interest savings resulting from the issuance of the 2026 Bonds Payable and redemption of the 2018 Bonds Payable in 2016 ($2.1 million), and an overall reduction in borrowings on our Revolving Credit Facility in the current period ($1.5 million). We expect interest expense to increase in the near term, due to borrowings to fund recent investing activities.
Interest and other income was $9.5 million for 2017, which represents an increase as compared with $7.3 million for 2016. The increase is due to earning interest on our large cash balance for the first nine months of 2017 ($2.2 million). The majority of our interest income is earned on investments in development authority bonds with a remaining term of approximately four years as of December 31, 2017. Interest income earned on investments in development authority bonds is entirely offset by interest expense incurred on the corresponding capital leases. We expect interest and other income to decrease slightly over the near term as cash deposits were applied to recent investing activities.
We recognized a loss on early extinguishment of debt of $0.3 million and $19.0 million in 2017 and 2016, respectively. In 2017, we repaid two mortgage notes. resulting in the write-off of the related deferred financing costs. In 2016, we incurred an early redemption premium on the settlement of the 2018 Bonds Payable of $17.9 million, and write-offs of deferred financing costs in connection with other early repayments. We expect future gains or losses on early extinguishments of debt to vary with financing activities.
We recognized income from unconsolidated joint ventures of $2.7 million for 2017, which represents an increase from a loss on unconsolidated joint ventures of $(7.6) million for 2016. The increase is due to the July 2017 transfer of University Circle and 333 Market Street to unconsolidated joint ventures, in which we retained a 77.5% ownership interest; the July 2017 acquisition of a 49.5% interest in 114 Fifth Avenue; and the October 2017 acquisition of a 55.0% interest in 1800 M Street. Future income or loss from unconsolidated joint ventures will vary as a result of future investing activities and leasing at the properties held in unconsolidated joint ventures.
We recognized gains on sales of real estate assets of $175.5 million in 2017, as a result of selling three properties in Houston, Texas, and the Key Center Tower and Marriott in Cleveland, Ohio in January 2017; and selling a 22.5% interest in each of the University Circle property and the 333 Market Street building in July 2017. We recognized gains on sales of real estate assets of $72.3 million in 2016, as a result of selling seven properties in separate transactions during the the year. See Note 3, Real Estate Transactions, of the accompanying financial statements, for additional details of these dispositions. We expect future gains on sales of real estate assets will vary with disposition activity.
Net income was $176.0 million, or $1.45 per basic and diluted share, for 2017, which represents an increase from $84.3 million, or $0.68 per basic and diluted share, for 2016. The increase is due to gains on sale of real estate ($103.2 million) and financing activities resulting in interest savings in the current year and losses on early extinguishment of debt in the prior year ($25.8 million), partially offset by lost income from sold properties ($38.4 million). See the "Supplemental Performance Measures" section below for our same-store results compared with the prior year. We expect future earnings to vary as a result of leasing activity at our existing properties and investing activities.
Comparison of the year endedYear Ended December 31, 2016 versusVersus the year endedYear Ended December 31, 2015
Rental income was $366.2 million for 2016, which represents a decrease from $436.0 million for 2015. The decrease is primarily due to current yearcurrent-year and prior yearprior-year dispositions ($53.0 million); transferring the Market Square Buildings to a joint venture in the fourth quarter of 2015 ($30.9 million); and vacancy at our 222 East 41st Street property for a portion of 2016 ($7.4 million), while the building was being prepared for NYU's Langone Medical lease to commence, partially offset by additional rental income from the acquisition of the 229 West 43rd Street Building in August 2015 ($19.9 million). We expect future rental income to fluctuate based on leasing, acquisition, and disposition activity.
Tenant reimbursements and property operating costs were $69.8 million and $155.0 million, respectively, for 2016, which represents a decreasean increase from $99.7 million and $188.1 million, respectively, for 2015. The decrease in property operating costs is due to dispositions ($23.4 million) and the transfer of the Market Square Buildings to a joint venture ($16.4 million), partially offset by


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additional property operating costs from the acquisition of the 229 West 43rd Street Building ($6.6 million). The proportional decrease in tenant reimbursements is also due to dispositions ($17.3 million) and the transfer of the Market Square Buildings to a joint venture ($9.4 million), partially offset by additional tenant reimbursements from the acquisition of the 229 West 43rd Street Building ($2.9 million). Tenant reimbursements and property operating costs are expected to fluctuate with leasing activity and changes in our portfolio.
Hotel income, net of hotel operating costs, was $4.0 million for 2016, which represents a decrease as compared with $4.7 million for 2015, primarily due to a higher level ofadditional group bookings and meetings at the hotel in 2015. The Key Center Marriott was sold in January of 2017.hotel.
OtherAsset and property management fee income was $14.9$2.1 million for 2016, which represents an increase as compared with $6.1$0.6 million for 2015. We began earning such fees in October 2015, upon the formation of the Market Square Joint Venture.
Other property income was $12.8 million for 2016, which represents an increase as compared with $5.4 million for 2015, primarily due to an early termination at our 222 East 41st Street property ($6.8 million) and additional management fees earned from the Market Square Joint Venture in 2016 ($2.4 million), as described in Note 4, Unconsolidated Joint Venture, to the accompanying consolidated financial statements. Future other property income is expected to fluctuate, primarily as a result of lease restructuring and termination activities..
Asset and property management fees were $1.4 million for 2016, which represents a decrease as compared with $1.8 million for 2015, primarily due to transferring the Market Square Buildings to a joint venture in the fourth quarter of 2015. Future asset and property management fees are expected to fluctuate with future acquisition and disposition activity.
Depreciation was $108.5 million for 2016, which represents a decrease as compared with $131.5 million for 2015, primarily due to dispositions ($16.3 million) and transferring the Market Square Buildings to a joint venture ($11.6 million), partially offset by additional depreciation from the acquisition of the 229 West 43rd Street Building in August 2015 ($5.4 million). Excluding the impact of additional acquisitions and dispositions, depreciation is expected to increase in future periods due to ongoing capital improvements at our existing properties.
Amortization was $56.8 million for 2016, which represents a decrease as compared with $87.1 million for 2015. The decrease is primarily due to dispositions ($16.1 million); intangibles written off related to the expiration or termination of leases ($9.8 million); and transferring the Market Square Buildings to a joint venture ($5.9 million); partially offset by additional amortization from the acquisition of the 229 West 43rd Street Building in August 2015 ($2.6 million).We expect future amortization to fluctuate primarily as a result of future leasing activity, acquisitions, and dispositions.
General and administrative expenses were corporate was $33.9 million for 2016, which represents an increase from $29.7 million for 2015. The increase is due to costs incurred to develop our regional management and investment platform ($2.9 million), and additional vesting under our stock-based incentive compensation plan ($1.0 million). We expect future general and administrative expenses to increase as a result of transitioning our long-term incentive plan from a one-year performance period to a three-year performance period, beginning in 2017.
We incurred acquisition expenses of $3.7 million for 2015 in connection with acquiring three properties in January 2015 and the 229 West 43rd Street Building in New York in August 2015. See Note 3, Real Estate Transactions, to the accompanying financial statements for additional details. We expectadopted Accounting Standards Update 2017-01, Clarifying the Definition of a Business, in the fourth quarter of 2017. (See Note 2, Summary of Significant Accounting Policies, of the accompanying consolidated financial statements.) As a result, we capitalized acquisition costs related to fourth quarter 2017 acquisitions and do not anticipate incurring future acquisition expenses related to fluctuate with acquisition activity.acquisitions of properties.
Interest expense was $67.6 million for 2016, which represents a decrease as compared with $85.3 million for 2015, primarily due to transferring the Market Square mortgage note to a joint venture ($13.6 million) and repaying mortgage loans ($5.4 million), partially offset by the 2025 Bonds Payable outstanding for the entire year ($3.0 million). We expect interest expense to continue to fluctuate based on acquisition activity in the near-term.
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of approximately five years as of December 31, 2016. Interest income earned on investments in development authority bonds is entirely offset by interest expense incurred on the corresponding capital leases.
We recognized a loss on interest rate swaps that do not qualify for hedge accounting treatment of approximately $1.1 million for 2015, primarily due to the settlement of the swap related to a $450 million term loan, which was replaced with other unsecured borrowings in July 2015. We anticipate that future gains and losses on interest rate swaps that do not qualify for hedge accounting treatment will fluctuate, primarily due to changes in the estimated fair value of our interest rate swaps relative to then-current market conditions. Market value adjustments to swaps that qualify for hedge accounting treatment are recorded directly to equity and therefore do not impact net income.
We recognized a loss on early extinguishment of debt of $19.0 million and $3.1 million in 2016 and 2015, respectively. In 2016, we incurred an early redemption premium on the settlement of the 2018 Bonds Payable of $17.9 million, and write offswrite-offs of deferred financing costs in connection with other early repayments. In 2015, we incurred a prepayment premium of $2.1 million related to the early repayment of the 215 Diehl Building mortgage note, approximately two years prior to its maturity and write offswrite-offs of deferred financing costs in connection with other early repayments. We expect future gains or losses on early extinguishments of debt to fluctuate with financing activities.
We recognized a loss from unconsolidated joint ventureventures of $7.6 million for 2016, which represents aan increase as compared with a loss of $1.1 million for 2015. The Market Square Joint Venture was formed on October 28, 2015. Since inception, real estate operating income from the Market Square Buildings has been reduced by interest incurred on the property's $325 million mortgage note, and the Market Square Buildings had slightly decreasedexperienced reduced occupancy during 2016. Future income or loss from unconsolidated joint venture will fluctuate with operating activity at the Market Square Buildings.levels throughout 2016 due to lease expirations.
We recognized gains on sales of real estate assets of $72.3 million in 2016, as a result of selling six properties in separate transactions for an aggregate of $660.5 million, exclusive of transaction costs. We recognized gains on sales of real estate assets of $23.9 million in 2015, as a result of selling 12 properties for an aggregate of $498.3 million, exclusive of transaction costs, and the sale


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of a 49% interest in the Market Square Buildings for a gross sales price of $120.0 million. See Note 3, Real Estate Transactions, of the accompanying financial statements, for additional details of these dispositions. We expect future gains on sales of real estate assets will fluctuate with disposition activity.
Net income was $84.3 million, or $0.68 per basic and diluted share, for 2016, which represents an increase from $44.6 million, or $0.36 per basic and diluted share, for 2015. The increase is due to additional year-over-year gains on sales of real estate ($48.5 million) and a decrease in interest expense and other financing costs ($17.7 million), partially offset by additional year-over-year losses on early extinguishment of debt ($15.8 million), lower earnings due to property sales ($5.3 million), and increase in equity in loss of unconsolidated joint ventureventures ($6.4 million) due to reduced occupancy at the Market Square Buildings.Square. See "Supplemental Performance Measures" section below for our same storesame-store results compared with the prior year period.
NOI by Geographic Segment
We expect future earningsconsider geographic location when evaluating our portfolio composition, and in assessing the ongoing operations and performance of our properties. As of December 31, 2017, we aggregated our properties into the following geographic segments: New York, San Francisco, Atlanta, Washington, D.C., Boston, Los Angeles, and all other office markets. All other office markets consists of properties in low-barrier-to-entry geographic locations, in which we do not have a substantial presence and do not plan to fluctuatemake further investments. See Note 14, Segment Information, to the accompanying consolidated financial statements.
The following table presents NOI by geographic segment (in thousands):
 For the Years Ended December 31,
 2017 2016 2015
New York$73,893
 $70,038
 $54,692
San Francisco76,163
 80,529
 83,826
Atlanta33,603
 32,939
 31,912
Washington, D.C.18,496
 16,372
 36,958
Boston5,380
 5,114
 12,519
Los Angeles4,529
 4,523
 4,853
All other office markets18,550
 92,756
 129,199
Total office segments230,614
 302,271
 353,959
Hotel(913) 3,988
 4,593
Corporate(826) (158) (586)
Total$228,875
 $306,101
 $357,966
Comparison of the Year Ended December 31, 2017 Versus the Year Ended December 31, 2016
San Francisco
NOI has decreased during 2017 due to the sale of a 22.5% interest in both University Circle and 333 Market Street. San Francisco NOI is expected to decrease in the near term as a result of leasing activity at our existingthe sale of an additional 22.5% interest in each of these properties, our planned near-term dispositions, and acquisition activity.
as described in Note 3, ComparisonReal Estate Transactions, of the year ended December 31, 2015 versusaccompanying consolidated financial statements.
Washington, D.C.
NOI has increased during 2017 due to the year ended December 31, 2014October 2017 acquisition of a 55% interest in 1800 M Street, as described in Note 3,
Rental income was $436.0 million for 2015,Real Estate Transactions, of the accompanying consolidated financial statements, which represents an increase from $414.5 million for 2014. The increase includes additional rental income from properties acquired in 2014 and 2015 ($74.3 million),is partially offset by selling properties during the same periodsdecreased occupancy at 80 M Street and transferring the Market Square Buildings to a joint venture on October 28, 2015 ($51.1 million).
Tenant reimbursements were relatively stable at $99.7 million and $95.4 million for 2015 and 2014, respectively. Property operating costs were $188.1 million for 2015, which represents an increase as compared with $163.7 million for 2014, primarily due to properties acquired during 2014 and 2015 ($32.2 million), partially offset by selling properties during the same periods and transferring the Market Square Buildings to a joint venture on October 28, 2015 ($14.0 million). Tenant reimbursements and property operating costs related to our joint venture interest in the Market Square Buildings (51%) are included in loss from unconsolidated joint venture on the accompanying consolidated statement of operations. Tenant reimbursements did not increase at the same pace as property operating costs, primarily due to a lease contraction at one of our properties, and a prior year property tax refund receivedearlier in the current year.
Hotel income, net of hotel operating costs, was $4.7 million for 2015, which represents an Over the near term, Washington, D.C. NOI is expected to increase as compared with $4.1 million for 2014, due to additional group bookings and meetings at the hotel.
Other property income was $6.1 million for 2015, which represents a decrease as compared with $8.0 million for 2014, primarily due to fluctuations in lease termination activity.
Asset and property management fees were $1.8 million for 2015, which represents a decrease as compared with $2.3 million for 2014, primarily as a result of savings generated from bringingrecent leasing activity at 80 M Street and Market Square and recognizing a full period for our interest in 1800 M Street.
All other office markets
NOI has decreased significantly year over year as a result of asset and propertymanagement servicessales, as described in house duringNote 3, Real Estate Transactions, of the accompanying consolidated financial statements.
Hotel
The Key Center Marriott, our only hotel, was sold on January 31, 2017.
Comparison of the Year Ended December 31, 2016 versus the Year Ended December 31, 2015 for


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properties in San Francisco ($1.1 million), partially offset by incurring additional property management and asset management fees for properties acquired in 2015 ($0.7 million).New York
Depreciation was $131.5 million for 2015, which represents an increaseNOI increased year over year as compared with $117.8 million for 2014, primarily due to recent acquisitions ($25.8 million), partially offset by recent dispositions and transferringa result of the Market Square Buildings to a joint venture on October 28, 2015 ($15.4 million). Depreciation related to our joint venture interest in the Market Square Buildings (51%) is included in loss from unconsolidated joint venture on the accompanying consolidated statementacquisition of operations.
Amortization was $87.1 million for 2015, which represents an increase as compared with $78.8 million for 2015, primarily due to recent acquisitions ($25.5 million), partially offset by properties sold and transferring the Market Square Buildings to a joint venture on October 28, 2015 ($13.8 million), and prior-period write offs at our existing properties ($2.4 million). Amortization related to our joint venture interest in the Market Square Buildings (51%) is included in loss from unconsolidated joint venture on the accompanying consolidated statement of operations.
In 2015, we did not recognize any impairment losses. In 2014, we recognized the following impairment losses in connection with changing our investment strategy and disposition expectations for the following assets: $13.6 million on the 160 Park Avenue Building in Florham Park, New Jersey, in the first quarter of 2014 (sold in June 2014); $1.4 million on the 200 South Orange Building in Orlando, Florida, in the second quarter of 2014 (sold in June 2014); and $10.1 million on the Bannockburn Lake III Building in Bannockburn, Illinois, in the fourth quarter of 2014 (sold in July 2015).
General and administrative expenses were $29.7 million for 2015, which represents a decrease from $31.3 million for 2014. The decrease is primarily due to the full period impact of savings related to changing transfer agents in the third quarter of 2014 ($1.5 million). In addition, reductions related to non-recurring professional fees incurred in 2014 ($2.6 million) are largely offset by costs incurred in 2015 to develop our regional investment platform ($1.5 million) and for vesting under our stock-based incentive compensation plan ($1.0 million).
We incurred acquisition expenses of $3.7 million for 2015 in connection with acquiring three properties in January 2015 and the 229 West 43rd Street Building, in New York in August 2015. We incurred acquisition expenses of $14.1 million for 2014, in connection with acquiring the 221 Main Street Building and the2015.
San Francisco
NOI decrease year over year as a result of decreased occupancy at 650 California Street.
Washington, D.C.
NOI decreased year over year as a result of selling a 49% interest in Market Square in October of 2015.
Boston
NOI decreased year over year as a result of selling 550 King Street Buildingand Robbins Road in San Franciscothe 11 Property Sale, as described in 2014. See Note 3, Real Estate Transactions, to the accompanying financial statements for additional details.
Interest expense was $85.3 million for 2015, which represents an increase as compared with $75.7 million for 2014, primarily due to interest incurred on the 2025 Bonds Payable issued in March 2015 ($11.6 million) and the full year impact of the notes payable assumed with the properties acquired in 2014 ($4.1 million), partially offset by mortgages settled during 2015 ($5.6 million). See Note 5, Line of Credit and Notes Payable, to the accompanying financial statements, for additional details.
Interest and other income was stable at $7.3 million for 2015 and 2014. Interest income is expected to remain at comparable levels in future periods, as the majority of this income is earned on investments in development authority bonds with a remaining term of approximately six years as of December 31, 2015. Interest income earned on investments in development authority bonds is entirely offset by interest expense incurred on the corresponding capital leases.
We recognized a loss on interest rate swaps that do not qualify for hedge accounting treatment of approximately $1.1 million for 2015, as compared with $0.4 million for 2014. The $1.1 million loss in 2015 is primarily due to the settlement of the swap related to a $450 million term loan, which was replaced with other unsecured borrowings in July 2015.
We recognized a loss on early extinguishment of debt of $3.1 million in 2015, primarily due to prepayment fees incurred to settle the 215 Diehl Building mortgage note in connection with selling the property as part of the 11 Property Sale, and writing off deferred financing costs in association with repaying a bridge loan in March 2015, 4.3 months prior to its original maturity date. We recognized a loss of $23,000 in 2014 related to the early repayment of the $9.1 million mortgage note for the 544 Lakeview Building. This note was originally due on December 1, 2014, and fully repaid on October 8, 2014.
We recognized a loss from unconsolidated joint venture of $1.1 million from the time we entered into the joint venture on October 28, 2015 through year end, as income from operations at the Market Square Buildings is offset by interest expense related to the $325 million mortgage note on the property.
We recognized gains on sales of real estate assets of $23.9 million and $75.3 million in 2015 and 2014, respectively.In July 2015, we sold 12 properties for aggregate gross proceeds of $498.3 million, exclusive of transaction costs, yielding total gains on sales of real estate assets of $20.8 million; and, in October 2015, we sold a 49% interest in the Market Square Buildings for a gross sales price of $120.0 million, resulting in a gain on sale of real estate assets of $3.1 million. In 2014, we sold five properties for aggregate gross proceeds of $425.5 million, exclusive of transaction costs, yielding total gains on sale of real estate assets of $75.3 million.


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Loss from discontinued operations was $2.0 million for 2014. Effective April 1, 2014, we adopted Accounting Standards Update 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components on an Entity ("ASU 2014-08"), which requires only dispositions representing a strategic shift in our operations to be reclassified to discontinued operations. Therefore, the operating results of properties disposed subsequent to our adoption date have not been reclassified to discontinued operations. As further explained in Note 12, Discontinued Operations, to the accompanying consolidated financial statements, prior to our adoptionstatements.
All other office markets
NOI has decreased significantly year over year as a result of ASU 2014-08, properties meeting certain criteria for disposal were classifiedasset sales, as "discontinued operations"described in Note 3, Real Estate Transactions, of the accompanying consolidated statements of operations.financial statements.
Net income was $44.6 million, or $0.36 per basic and diluted share, for 2015, which represents a decrease from $92.6 million, or $0.74 per share, for 2014, primarily due to the gain on the sale of the Lenox Park Property in October 2014 ($56.5 million). This decrease is partially offset by additional real estate operating income from the $0.5 billion of net real estate acquisitions made in 2015 and leasing activity ($15.6 million), reduced by additional interest expense to fund such acquisitions ($9.6 million).
Supplemental Performance Measures
In addition to net income, we measure the performance of the company using certain non-GAAP supplemental performance measures, including: (i) Funds From Operations ("FFO"), (ii) Net Operating Income ("NOI"), and (iii) Same Store Net Operating Income ("Same Store NOI"). These non-GAAP metrics are commonly used by industry analysts and investors as supplemental operation performance measures of REITs and are viewed by management to be useful indicators of operating performance. Historical cost accounting for real estate assets in accordance with GAAP implicitly assumes that the value of real estate assets diminishes predictably over time. Since real estate values instead have historically risen or fallen with market conditions, many industry analysts and investors have considered presentation of operating results for real estate companies using historical cost accounting alone to be insufficient. Management believes that the use of FFO, NOI, and Same Store NOI, combined with net income, improves the understanding of operating results of REITs among the investing public and makes comparisons of REIT operating results more meaningful.
Net income is the most comparable GAAP measure to FFO, NOI, and Same Store NOI. Each of these supplemental performance measures exclude expenses that materially impact our overall results of operations and, therefore, should not be considered as a substitute for net income, income from continuing operations before income taxes, or any other measures derived in accordance with GAAP. Furthermore, these metrics may not be comparable to other similarly titled measures used by other companies.
Funds From Operations
FFO is a non-GAAP measure used by many investors and analysts who follow the real estate industry to measure the performance of an equity REIT. We consider FFO a useful measure of our performance because it principally adjusts for the effects of GAAP depreciation and amortization of real estate assets, which assumes that the value of real estate diminishes predictably over time. Since real estate values have historically risen or fallen with market conditions, we believe that FFO provides a meaningful supplemental measure of our performance. We believe that the use of FFO, combined with the required GAAP presentations, is beneficial in improving our investors' understanding of our operating results and allowing for comparisons among other companies who define FFO as we do.
FFO, as defined by the National Association of Real Estate Investment Trusts ("NAREIT"), represents net income (computed in accordance with GAAP), excluding gains (losses)or losses on sales of real estate and impairments of real estate assets, plus real estate-related depreciation and amortization, and after adjustments for unconsolidated partnerships and joint ventures, for both continuing and discontinued operations. We compute FFO in accordance with NAREIT's definition, which may differ from the methodology for calculating FFO, or similarly titled measures, used by other companies, and this may not be comparable to those presentations.
FFO does not represent amounts available for management's discretionary use because of needed capital replacement or expansion, debt service obligations, or other commitments and uncertainties, nor is it indicative of funds available to fund our cash needs, including our ability to make distributions. Our presentation of FFO should not be considered as an alternative to net income (computed in accordance with GAAP) as an indicator of financial performance.


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Reconciliations of netNet income reconciles to FFO as follows (in thousands):
Years Ended December 31,Years Ended December 31,
2016 2015 20142017 2016 2015
Reconciliation of Net Income to Funds From Operations:          
Net income$84,281
 $44,619
 $92,635
$176,041
 $84,281
 $44,619
Adjustments:          
Depreciation of real estate assets108,543
 131,490
 117,766
80,394
 108,543
 131,490
Amortization of lease-related costs56,775
 87,128
 78,843
32,403
 56,775
 87,128
Depreciation and amortization included in loss from unconsolidated joint venture(1)
8,776
 1,606
 
21,288
 8,776
 1,606
Impairment loss on real estate assets
 
 25,130
Gains on sales of real estate assets continuing operations
(72,325) (23,860) (75,275)
Gain (loss) on sale of real estate assets discontinued operations

 
 1,627
Total Funds From Operations adjustments101,769
 196,364
 148,091
Funds From Operations$186,050
 $240,983
 $240,726
Gains on sales of real estate assets(175,518) (72,325) (23,860)
Total funds from operations adjustments(41,433) 101,769
 196,364
Funds from operations$134,608
 $186,050
 $240,983
(1) 
Reflects 51% ofour ownership interest in depreciation and amortization for the Market Square Joint Venture,investments in which we own an interest through an unconsolidated joint venture.ventures.


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Net Operating Income
As set forth below, NOI is calculated by deducting property operating costs from rental and other property revenues for continuing operations. As a performance metric consisting of only revenues and expenses directly related to ongoing real estate rental operations, which have been or will be settled in cash, NOI is narrower in scope than FFO.
NOI, as we calculate it, may not be directly comparable to similarly titled, but differently calculated, measures for other REITs. We believe that NOI is another useful supplemental performance measure, as it is an input in many REIT valuation models, and it provides a means by which to evaluate the performance of the properties.
The major factors influencing our NOI are property acquisitions and dispositions, occupancy levels, rental rate increases or decreases, and the recoverability of operating expenses.


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Same Store Net Operating Income
We also evaluate the performance of our properties, on a "same store" basis, using a metric referred to as Same Store NOI. We view Same Store NOI as a useful supplemental performance measure because it improves comparability between periods by eliminating the effects of changes in the composition of our portfolio. On an individual property basis, Same Store NOI is computed in a consistent manner as NOI.NOI (as described in the previous section). For the periods presented, we have defined our same store portfolio as those properties that have been continuously owned and operating since January 1, 2015.2016. NOI and Same Store NOI are calculated as follows for the years ended December 31, 20162017 and 20152016 (in thousands):
Years Ended December 31,Years Ended December 31,
2016 20152017 2016
Same-Store NOI - wholly-owned properties:   
Revenues:      
Rental income$269,829
 $276,166
$217,615
 $213,161
Tenant reimbursements44,752
 49,414
18,221
 22,868
Hotel income22,661
 24,309
Other property income2,763
 520
3,242
 12,052
Lease termination income9,133
 2,919
Total revenues349,138
 353,328
239,078
 248,081
Operating expenses:   
Property operating costs(105,425) (106,728)
Hotel operating costs(18,686) (19,615)
Total operating expenses(124,111) (126,343)
Same Store NOI - wholly-owned properties(1)
225,027
 226,985
Same Store NOI - 51% of Market Square Buildings(2)
9,732
 14,021
Operating expenses(79,508) (83,742)
Same Store NOI – wholly-owned properties(1)
159,570
 164,339
Same Store NOI – joint-venture owned properties(2)
51,665
 49,522
Total Same-Store NOI211,235
 213,861
NOI from acquisitions(3)
46,145
 31,189
10,793
 
NOI from dispositions(4)
27,319
 86,376
6,847
 92,240
NOI$308,223
 $358,571
$228,875
 $306,101
(1) 
Reflects NOI from properties that were wholly-ownedwholly owned for the entirety of the periods presented.
(2) 
Reflects NOI for 51% of the Market Square buildings for
For all periods presented. On October 28, 2015, we transferred the Market Square buildings and the $325.0 million mortgage note to a joint venture, and sold a 49% interest in the joint venture. Beginning on October 28, 2015, upon entering the joint venture,presented, reflects our ownership interest in NOI from thefor properties owned through unconsolidated joint ventures as of December 31, 2017 (Market Square, University Circle, 333 Market Square BuildingsStreet, 114 Fifth Avenue, and 1800 M Street). The NOI for properties held through unconsolidated joint ventures is included in lossincome (loss) from unconsolidated joint ventureventures in our accompanying consolidated statements of operations. See Note 4, Unconsolidated Joint Ventures, of the accompanying consolidated statement of operations.financial statements, for more information.
(3) 
Reflects activity for the following properties acquired since January 1, 2015: 2292016: 55% of 1800 M Street, 218 West 43rd18th Street, 315 Park Avenue South, and 116 Huntington245-249 West 17th Street, and 49.5% of 114 Fifth Avenue.
(4) 
Reflects activity for the following properties sold since January 1, 2015:2016: 22.5% of University Circle, and 22.5% of 333 Market Street, Key Center Tower, Key Center Marriott, 515 Post Oak, Energy Center, 5 Houston Center, SanTan Corporate Center, Sterling Commerce, 80 Park Plaza, 9127, 9189, 9191 & 9193 South Jamaica Street, 800 North Frederick, and 100 East Pratt, 1881 Campus Commons, 49% of the Market Square Buildings, 170 Park Avenue, 180 Park Avenue, 1580 West Nursery Road, Acxiom, Highland Landmark III, The Corridors III, 215 Diehl Road, 544 Lakeview, Bannockburn Lake III, 550 King Street, and Robbins Road.Pratt.
The slight decline in Same Store NOI is due to a temporary decline in occupancy at 650 California Street in San Francisco and at 315 Park Avenue South in New York. Anticipated lease expirations at 650 California Street and at 315 Park Avenue South allowed us to roll below-market leases up to market rates with recent leasing activities. As a result, future Same Store NOI is expected to increase at these properties and across the portfolio. The slight decline in Same Store NOI from prior year is also impacted by a lease expiration at 263 Shuman Boulevard, which is in the process of being returned to the lender in settlement of the mortgage note.



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A reconciliation of Net Income to NOI and Same Store NOI is presented below (in thousands):
 Years Ended December 31,
 2016 2015
Net income$84,281
 $44,619
Net interest expense67,538
 85,265
Interest income from development authority bonds(7,200) (7,200)
Income tax expense445
 378
Depreciation108,543
 131,490
Amortization56,775
 87,128
Real estate acquisition costs
 3,675
Gains on sales of real estate assets(72,325) (23,860)
Loss on early extinguishment of debt18,997
 3,149
General and administrative33,876
 29,683
Interest rate swap valuation adjustment
 (2,634)
Interest expense associated with interest rate swaps
 2,642
Settlement of interest rate swap
 1,102
Adjustment included in loss from unconsolidated joint venture17,293
 3,134
Net Operating Income$308,223
 $358,571
Same Store NOI - 51% of Market Square Buildings(1)
(9,732) (14,021)
NOI from Acquisitions(2)
(46,145) (31,189)
NOI from Dispositions(3)
(27,319) (86,376)
Same Store NOI(4)
$225,027
 $226,985
 Years Ended December 31,
 2017 2016
Net income$176,041
 $84,281
Depreciation80,394
 108,543
Amortization32,403
 56,775
General and administrative – corporate34,966
 33,876
General and administrative – joint venture1,454
 
Net interest expense58,187
 67,538
Interest income from development authority bonds(7,200) (7,200)
Loss on early extinguishment of debt325
 18,997
Income tax expense(213) 445
Asset and property management fee income(3,782) (2,122)
Adjustment included in loss from unconsolidated joint venture31,818
 17,293
Gains on sales of real estate assets(175,518) (72,325)
Net operating income$228,875
 $306,101
Same Store NOI  joint venture owned properties(1)
(51,665) (49,522)
NOI from acquisitions(2)
(10,793) 
NOI from dispositions(3)
(6,847) (92,240)
Same Store NOI - wholly owned properties(4)
$159,570
 $164,339
(1) 
Reflects NOI for 51% of the Market Square buildings for
For all periods presented. On October 28, 2015, we transferred the Market Square buildings and the $325.0 million mortgage note to a joint venture, and sold a 49% interest in the joint venture. Beginning on October 28, 2015, upon entering the joint venture,presented, reflects our ownership interest in NOI from thefor properties owned through unconsolidated joint ventures as of December 31, 2017 (Market Square, University Circle, 333 Market Square BuildingsStreet, 114 Fifth Avenue, and 1800 M Street). The NOI for properties held through unconsolidated joint ventures is included in lossincome (loss) from unconsolidated joint ventureventures in our accompanying consolidated statements of operations. See Note 4, Unconsolidated Joint Ventures, of the accompanying consolidated statement of operations.financial statements, for more information.
(2) 
Reflects activity for the following properties acquired since January 1, 2015: 2292016: 55% of 1800 M Street, 218 West 43rd18th Street, 315 Park Avenue South, and 116 Huntington245-249 West 17th Street, and 49.5% of 114 Fifth Avenue.
(3) 
Reflects activity for the following properties sold since January 1, 2015:2016: 22.5% of University Circle, and 22.5% of 333 Market Street, Key Center Tower, Key Center Marriott, 515 Post Oak, Energy Center, 5 Houston Center, SanTan Corporate Center, Sterling Commerce, 80 Park Plaza, 9127, 9189, 9191 & 9193 South Jamaica Street, 800 North Frederick, and 100 East Pratt, 1881 Campus Commons, 49% of the Market Square Buildings, 170 Park Avenue, 180 Park Avenue, 1580 West Nursery Road, Acxiom, Highland Landmark III, The Corridors III, 215 Diehl Road, 544 Lakeview, Bannockburn Lake III, 550 King Street, and Robbins Road.Pratt.
(4) 
Reflects NOI from properties that were wholly-ownedwholly owned for the entirety of the periods presented.



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Portfolio Information
As of December 31, 2016, we owned 21 office properties and one hotel. These properties contain approximately 11.0 million square feet of commercial space located in nine states and the District of Columbia. All of our office properties are wholly owned except for one, which is owned through an unconsolidated joint venture. As of December 31, 2016, our office2017, we owned 19 operating properties, including 51% of the Market Square buildings, which we own14 were wholly owned and five were owned through an unconsolidated joint venture,ventures. These properties are located primarily in New York, San Francisco, Washington, D.C., and Atlanta, contain a total of 9.2 million rentable square feet, and were approximately 90.6% leased. In January 2017, we sold three office properties in Houston, Texas, and the Key Center Tower and Key Center Marriott in Cleveland, Ohio. The terms96.2% leased as of these transactions are described in Note 3, Real Estate Transactions, of the accompanying consolidated financial statements.December 31, 2017.
As of December 31, 2016,2017, our five highest geographic reportable segments, based on Annualized Lease Revenue, were as follows. For more information about our reportable segments, see Note 15,14, Segment Information, to the accompanying consolidated financial statements.
Location 2016 Annualized
Lease Revenue
(in thousands)
 
Leased
Square Feet
(in thousands)
 Percentage of
2016 Annualized
Lease Revenue
 Leased
Square Feet
(in thousands)
 2017 Annualized
Lease Revenue
(in thousands)
 Percentage of
2017 Annualized
Lease Revenue
New York $2,388
 147,318
 38%
San Francisco $104,731
 1,765
 26% 1,663
 106,747
 28%
New York 99,258
 1,782
 25%
Washington, D.C. 846
 53,696
 14%
Atlanta 37,300
 1,572
 9% 1,656
 40,509
 11%
Washington, D.C. 34,639
 519
 9%
Boston 11,709
 217
 3% 225
 12,081
 3%
 $287,637
 5,855
 72% $6,778
 360,351
 94%
As of December 31, 2016,2017, our five highest tenant industry concentrations, based on Annualized Lease Revenue, were as follows:
Industry 2016 Annualized
Lease Revenue
(in thousands)
 
Leased
Square Feet
(in thousands)
 Percentage of
2016 Annualized
Lease Revenue
 Leased
Square Feet
(in thousands)
 2017 Annualized
Lease Revenue
(in thousands)
 Percentage of
2017 Annualized
Lease Revenue
Business Services $68,148
 1,077
 17% $1,281
 88,033
 23%
Depository Institutions 61,748
 1,666
 16% 1,021
 42,242
 11%
Engineering & Management Services 495
 28,591
 8%
Communications 1,010
 26,135
 7%
Legal Services 41,529
 912
 10% 303
 23,305
 6%
Communications 28,642
 1,042
 7%
Security and Commodity Brokers 26,457
 388
 7%
 $226,524
 5,085
 57% $4,110
 208,306
 55%
As of December 31, 2016,2017, our five highest tenant concentrations, based on Annualized Lease Revenue, were as follows:
Tenant 2016 Annualized
Lease Revenue
(in thousands)
 Percentage of
2016 Annualized
Lease Revenue
 2017 Annualized
Lease Revenue
(in thousands)
 Percentage of
2017 Annualized
Lease Revenue
AT&T $22,579
 6%
Wells Fargo $28,640
 7% 20,522
 5%
AT&T 22,278
 6%
Pershing 18,471
 5% 18,251
 5%
Credit Suisse 16,082
 4%
Westinghouse 15,778
 4%
Twitter 15,894
 4%
NYU 15,277
 4%
 $101,249
 26% $92,523
 24%
For more information on our portfolio, see Item 2, Properties.
Election as a REIT
We have elected to be taxed as a REIT under the Code, and have operated as such beginning with our taxable year ended December 31, 2003. To qualify as a REIT, we must meet certain organizational and operational requirements, including a requirement to distribute at least 90% of our adjusted taxable income, as defined in the Code, to our stockholders, computed without regard to the dividends-paid deduction and by excluding our net capital gain. As a REIT, we generally will not be subject


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to federal income tax on income that we distribute to our stockholders. If we fail to qualify as a REIT in any taxable year, we will then be subject to federal income taxes on our taxable income for that year and for the four years following the year during which qualification is lost, unless the Internal Revenue Service grants us relief under certain statutory provisions. Such an event could materially affect our net income and net cash available for distribution to our stockholders. However, we believe that we are organized and operate in such a manner as to qualify for treatment as a REIT for federal income tax purposes.


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Columbia Property Trust TRS, LLC, Columbia KCP TRS, LLC, and Columbia Energy TRS, LLC (collectively, the "TRS Entities") are wholly owned subsidiaries of Columbia Property Trust and are organized as Delaware limited liability companies, and operate,companies. The TRS Entities, among other things, office propertiesprovide tenant services that we do not intend to hold long term andColumbia Property Trust, as a full-service hotel.REIT, cannot otherwise provide. We have elected to treat the TRS Entities as taxable REIT subsidiaries. We may perform certain additional, noncustomary services for tenants of our buildings through the TRS Entities; however, any earnings related to such services are subject to federal and state income taxes. In addition, for us to continue to qualify as a REIT, we must limit our investments in taxable REIT subsidiaries to 25% of the value of our total assets. Deferred tax assets and liabilities are established for temporary differences between the financial reporting basis and the tax basis of assets and liabilities at the enacted rates expected to be in effect when the temporary differences reverse.
No provisions for federal income taxes have been made in our accompanying consolidated financial statements, other than the provisions relating to the TRS Entities, as we made distributions in excess of taxable income for the periods presented. We are subject to certain state and local taxes related to property operations in certain locations, which have been provided for in our accompanying consolidated financial statements.
Inflation
We are exposed to inflation risk, as income from long-term leases is the primary source of our cash flows from operations. There are provisions in the majority of our tenant leases that are intended to protect us from, and mitigate the risk of, the impact of inflation. These provisions include rent steps, reimbursement billings for operating expense pass-through charges, real estate tax and insurance reimbursements on a per-square-foot basis, or in some cases, annual reimbursement of operating expenses above a certain per-square-foot allowance. However, due to the long-term nature of the leases, the leases may not reset frequently enough to fully cover inflation.
Application of Critical Accounting Policies
Our accounting policies have been established to conform with GAAP. The preparation of financial statements in conformity with GAAP requires management to use judgment in the application of accounting policies, including making estimates and assumptions. These judgments affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenue and expenses during the reporting periods. If our judgment or interpretation of the facts and circumstances relating to various transactions had been different, it is possible that different accounting policies would have been applied, thus resulting in a different presentation of the financial statements. Additionally, other companies may utilize different estimates that may impact the comparability of our results of operations to those of companies in similar businesses.
Investment in Real Estate Assets
We are required to make subjective assessments as to the useful lives of our depreciable assets. WeTo determine the appropriate useful life of an asset, we consider the period of future benefit of the asset to determine the appropriate useful lives.asset. These assessments have a direct impact on net income. The estimated useful lives of our assets by class are as follows:
Buildings  40-45 years
Building and site improvements  5-25 years
Tenant improvements  Shorter of economic life or lease term
Intangible lease assets  Lease term
Evaluating the Recoverability of Real Estate Assets
We continually monitor events and changes in circumstances that could indicate that the carrying amounts of the real estate and related intangible assets of both operating properties and properties under construction, in which we have an ownership interest, either directly or through investments in joint ventures, may not be recoverable. When indicators of potential impairment are present that suggest that the carrying amounts of real estate assets and related intangible assets (liabilities) may not be recoverable, we assess the recoverability of these assets by determining whether the respective carrying values will be recovered through the estimated undiscounted future operating cash flows expected from the use of the assets and their eventual disposition. In the event


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that such expected undiscounted future cash flows do not exceed the carrying values, we adjust the carrying value of the real estate assets and related intangible assets to the estimated fair values, pursuant to the property, plant, and equipment accounting standard for the impairment or disposal of long-lived assets, and recognize an impairment loss. Estimated fair values are calculated based on the following information, in orderhierarchy of preference,information, depending upon availability: (Level 1) recently quoted market prices; (Level 2) market prices for comparable properties; or (Level 3) the present value of future cash flows, including estimated residual value. Certain of our assets may be carried at more than an amount that exceeds that which could be realized in a current disposition


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transaction. We have determined that there is no impairment in the carrying values of our real estate assets and related intangible assets for the year ended December 31, 2016.2017.
Projections of expected future operating cash flows require that we estimate future market rental income amounts subsequent to the expiration of current lease agreements, property operating expenses, the number of months it takes to re-lease the property, and the number of years the property is held for investment, among other factors. TheDue to the inherent subjectivity of the assumptions used in the future cash flow analysis, including discount rates, could result in an incorrect assessment of the property's fair value and could result in the misstatement of the carrying value of our real estate assets and related intangible assets and net income.
In the first quarter of 2014, we revised our investment strategy for the 160 Park Avenue Building in Florham Park, New Jersey, to sell the property to a user in the near-term. As a result, management reduced its intended holding period for the building and reevaluated the property's carrying value as of March 31, 2014, pursuant to the accounting policy outlined above. We concluded that the 160 Park Avenue Building was not recoverable and reduced its carrying value to reflect its fair value, estimated based on recently quoted market prices (Level 2), by recording an impairment loss of approximately $13.6 million in the first quarter of 2014. The sale of the160 Park Avenue Building closed on June 4, 2014, for $10.2 million, exclusive of transaction costs.
In the second quarter of 2014, we decided to pursue a near-term sale of the 200 South Orange Building in Orlando, Florida. As a result, management reduced its intended holding period for the building and reevaluated the property's carrying value in the second quarter of 2014. In connection with negotiating the terms of the sale, we reduced the carrying value of the 200 South Orange Building to reflect fair value, estimated based on an approximate net contract price of $18.4 million (Level 1), by recording an impairment loss of $1.4 million in the second quarter. The sale of the 200 South Orange Building closed on June 30, 2014, for $18.4 million, net of transaction costs.
In the fourth quarter of 2014, we identified $500 million to $600 million of properties in our portfolio that fell outside of our targeted investment strategy. In connection with initiating the sales process for these assets, we evaluated the recoverability of the carrying values of each of these properties and determined that the carrying value of the Bannockburn Lake III property, a vacant property located in Bannockburn, Illinois, was no longer recoverable due to reducing its expected property holding period to less than one year. As a result, in the fourth quarter of 2014, we reduced the carrying value of the Bannockburn Lake III property to $5.0 million, estimated based on current projected discountedproject future cash flows, (Level 3), by recording an impairment loss of $10.1 million.
Theestimated fair value measurements usedvalues may differ from the values that would be realized in this evaluation of nonfinancial assets are considered to be Level 3 valuations within the fair value hierarchy outlined above, as there are significant unobservable inputs. Examples of inputs that were utilized in the fair value calculations include estimated holding periods, discount rates, market capitalization rates, expected lease rental rates, and potential sales prices. The table below represents the detail of the adjustments recognized, using Level 3 inputs.
Property Net Book Value Impairment Loss Recognized Fair Value
Bannockburn Lake III $15,148
 $(10,148) $5,000
transactions.
Allocation of Purchase Price of Acquired Assets
Upon the acquisition of real properties, we allocate the purchase price of properties to tangible assets, consisting of land and building, site improvements, and identified intangible assets and liabilities, including the value of in-place leases, based in each case on our estimate of their fair values.
The fair values of the tangible assets of an acquired property (which includes land and building) are determined by valuing the property as if it were vacant, and the "as-if-vacant" value is then allocated to land and building based on our determination of the relative fair value of these assets. We determine the as-if-vacant fair value of a property using methods similar to those used by independent appraisers. Factors we consider in performing these analyses include an estimate of carrying costs during the expected lease-up periods considering current market conditions and costs to execute similar leases, including leasing commissions and other related costs. In estimating carrying costs, we include real estate taxes, insurance, and other operating expenses during the expected lease-up periods based on current market demand.


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Intangible Assets and Liabilities Arising fromFrom In-Place Leases Where We Are the Lessor
As further described below, in-place leases where we are the lessor may have values related to direct costs associated with obtaining a new tenant, opportunity costs associated with lost rentals that are avoided by acquiring an in-place lease, tenant relationships, and effective contractual rental rates that are above or below market rates:
Direct costs associated with obtaining a new tenant, including commissions, tenant improvements, and other direct costs, are estimated based on management's consideration of current market costs to execute a similar lease. Such direct costs are included in intangible lease origination costs in the accompanying consolidated balance sheets and are amortized to expense over the remaining terms of the respective leases.
The value of opportunity costs associated with lost rentals avoided by acquiring an in-place lease is calculated based on the contractual amounts to be paid pursuant to the in-place leases over a market absorption period for a similar lease. Such opportunity costs are included in intangible lease assets in the accompanying consolidated balance sheets and are amortized to expense over the remaining terms of the respective leases.
The value of tenant relationships is calculated based on expected renewal of a lease or the likelihood of obtaining a particular tenant for other locations. Values associated with tenant relationships are included in intangible lease assets in the accompanying consolidated balance sheets and are amortized to expense over the remaining terms of the respective leases.
The value of effective rental rates of in-place leases that are above or below the market rates of comparable leases is calculated based on the present value (using a discount rate that reflects the risks associated with the leases acquired) of the difference between (i) the contractual amounts to be received pursuant to the in-place leases and (ii) management's estimate of fair market lease rates for the corresponding in-place leases. This calculation includes significantly below- market renewal options for which exercise of the renewal option appears to be reasonably assured. These intangible assets or liabilities are measured over the actual or assumed (in the case of renewal options) remaining lease terms. The capitalized above-market and below-market lease values are recorded as intangible lease assets or liabilities and amortized as an adjustment to rental income over the remaining terms of the respective leases.
Evaluating the Recoverability of Intangible Assets and Liabilities
The values of intangible lease assets and liabilities are determined based on assumptions made at the time of acquisition and have defined useful lives, which correspond with the lease terms. There may be instances in which intangible lease assets and liabilities become impaired, and we are required to write off the remaining asset or liability immediately or over a shorter period of time. Lease restructurings, including lease terminations and lease extensions, may impact the value and useful life of in-place leases. In-place leases that are terminated, partially terminated, or modified will be evaluated for impairment if the original in-place lease terms have been modified. In the event that the discounted cash flows of the original in-place lease stream do not exceed the discounted modified in-place lease stream, we adjust the carrying value of the intangible lease assets to the discounted cash flows and recognize an impairment loss. For in-place lease extensions that are executed more than one year prior to the original in-place lease expiration date, the useful life of the in-place lease will be extended over the new lease term with the exception of those in-place lease components, such as lease commissions and tenant allowances, which have been renegotiated for the extended term. Renegotiated in-place lease components, such as lease commissions and tenant allowances, will be amortized over the shorter of the useful life of the asset or the new lease term.


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Intangible Assets and Liabilities Arising fromFrom In-Place Leases Where We Are the Lessee
In-place ground leases where we are the lessee may have value associated with effective contractual rental rates that are above or below market rates. Such values are calculated based on the present value (using a discount rate that reflects the risks associated with the leases acquired) of the difference between (i) the contractual amounts to be paid pursuant to the in-place lease and (ii) management's estimate of fair market lease rates for the corresponding in-place lease at the time of execution or assumption. This calculation includes significantly below market renewal options for which exercise of the renewal option appears to be reasonably assured. These intangible assets and liabilities are measured over the actual or assumed (in the case of renewal options) remaining lease terms. The capitalized above-market and below-market in-place lease values are recorded as intangible lease liabilities and assets, respectively, and are amortized as an adjustment to property operating cost over the remaining term of the respective ground leases.
Related-Party Transactions and Agreements
During 2017, 2016, 2015, and 2014,2015, we did not have any related party transactions, except as described in Note 4, Unconsolidated Joint Venture, of the accompanying consolidated financial statements.



Page 37

Table of Contents
Index to Financial Statements

Commitments and Contingencies
We are subject to certain commitments and contingencies with regard to certain transactions. Refer to Note 7, Commitments and& Contingencies, to the accompanying consolidated financial statements for further explanation. Examples of such commitments and contingencies include:
guaranty of debt of an unconsolidated joint venture of $16.1$11.2 million;
obligations under operating leases;
obligations under capital leases;
commitments under existing lease agreements; and
litigation.
Subsequent Events
We have evaluated subsequent events in connection with the preparation of our consolidated financial statements and notes thereto included in this report on Form 10-K and noted the following items in addition to those disclosed elsewhere in this report:
Property Dispositions
As further described in Note 3, Real Estate Transactions, of the accompanying consolidated financial statements, we closed on the sale of the Houston Properties on January 6, 2017, and closed on the sale of the Key Center Tower and the Key Center Marriott on January 31, 2017.
Dividends
On January 5, 2017, we paid an aggregate amount of $36.7 million in dividends for the fourth quarter of 2016 to shareholders of record on December 1, 2016.
On February 8, 2017,7, 2018, the board of directors declared dividends for the first quarter of 20172018 in the amount of $0.20 per share, payable on March 15, 2017,2018, to stockholders of record on March 1, 2018.
On February 1, 2018, Columbia Property Trust sold an additional 22.5% interest in University Circle and 333 Market Street to its joint venture partner, Allianz, as described in Note 3, Real Estate Transactions, to the accompanying consolidated financial statements.
On January 4, 2018, we paid an aggregate amount of $24.0 million in dividends for the fourth quarter of 2017 to shareholders of record on December 1, 2017.
ITEM 7A.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
As a result of our debt facilities, we are exposed to interest rate changes. Our interest rate risk management objectives are to limit the impact of interest rate changes on earnings and cash flow, primarily through a moderate level of overall borrowings. However, we currently have a substantial amount of debt outstanding. The majority of our borrowings are in the form of effectively fixed-rate financings, which helps to insulate our portfolio from interest rate risk. We closely monitor interest rates and will continue to consider the sources and terms of our borrowing facilities to determine whether we have appropriately guarded ourselves against the fluctuation of interest rates in future periods.
Additionally, we have entered into interest rate swaps, and may enter into other interest rate swaps, caps, or other arrangements to mitigate our interest rate risk on a related financial instrument. We do not enter into derivative or interest rate transactions for speculative purposes; however, certain of our derivatives may not qualify for hedge accounting treatment. All of our debt was entered into for other-than-trading purposes. As of December 31, 20162017 and 20152016, the estimated fair value of our consolidated line of credit and notes payable and bonds was $1.7 billion and $1.4 billion, and $1.7 billion, respectively.


Page 39

Table of Contents
Index to Financial Statements

Our financial instruments, including bonds payable, consist of both fixed- and variable-rate debt. As of December 31, 20162017, adjusting for 51% of the debt at the Market Square Joint Venture, in which we own an interest through an unconsolidated joint venture, our debt consisted of the following, in thousands:
  2017 2018 2019 2020 2021 Thereafter Total
Maturing debt:              
Effectively variable-rate debt $
 $
 $
 $300,000
 $
 $
 $300,000
Effectively fixed-rate debt $127,728
 $25,859
 $121,016
 $
 $
 $1,015,750
 $1,290,353
               
Average interest rate:              
Effectively variable-rate debt % % % 1.80% % % 1.80%
Effectively fixed-rate debt 4.60% 5.57% 3.60% % % 4.04% 4.08%
  2018 2019 2020 2021 2022 Thereafter Total
Maturing Debt:              
Effectively variable-rate debt $300,000
 $152,000
 $300,000
 $
 $
 $
 $752,000
Effectively fixed-rate debt(1)
 $23,176
 $
 $
 $
 $150,000
 $864,265
 $1,037,441
               
Average Interest Rate:              
Effectively variable-rate debt 2.60% 2.57% 2.66% % % % 2.62%
Effectively fixed-rate debt(1)
 5.80% % % % 3.07% 4.12% 4.04%


Page 38

Table of Contents
Index to Financial Statements

(1)
Fixed-rate debt and the related average interest rates exclude the $49.0 million mortgage note for 263 Shuman Boulevard, which matured in July 2017. We are in the process of working to transfer this property to the lender in settlement of the mortgage note. Interest is being accrued at the default rate of 10.55%.
Our variable-rate borrowings consist of the Revolving Credit Facility, the $300 Million Bridge Loan, the $300 Million Term Loan, and the $150 Million Term Loan. However, only the Revolving Credit Facility, the $300 Million Bridge Loan, and the $300 Million Term Loan bear interest at effectively variable rates, as the variable rate on the $150 Million Term Loan has been effectively fixed through the interest rate swap agreement described herein.
As of December 31, 2016,2017, we had no$152.0 million outstanding borrowings under the Revolving Credit Facility; $150.0 million outstanding on the $150 Million Term Loan; $300.0 million outstanding on the $300 Million Bridge Loan; $300.0 million outstanding on the $300 Million Term Loan; $348.7$348.9 million in 2026 Bonds Payable outstanding; $349.6 million in 2025 Bonds Payable outstanding; and $274.6$72.2 million outstanding on fixed-rate, term mortgage loans. The weighted-average interest rate of all of our consolidated debt instruments was 3.49%3.47% as of December 31, 2016.2017.
Approximately $1,122.9$920.7 million of our consolidated debt outstanding as of December 31, 2016,2017, is subject to fixed rates, either directly or when coupled with an interest rate swap agreement. As of December 31, 2016,2017, these balances incurred interest expense at an average interest rate of 3.94%4.17% and have expirations ranging from 20172018 through 2026. A change in the market interest rate impacts the net financial instrument position of our fixed-rate debt portfolio; however, it has no impact on interest incurred or cash flows. A one1 percent change in interest rates would have a $3.0$7.5 million annual impact on our interest payments. The amounts outstanding on our variable-rate debt facilities in the future will largely depend upon future acquisition and disposition activity and other financing activities.
Our Market Square Joint Venture holds a $325 million mortgage note, which bears interest at 5.07%. Adjusting for 51% of the debt at the Market Square Joint Venture, in which we own an interest through an unconsolidated joint venture, our weighted- averageweighted-average interest rate of all of our debt instruments, including our share of the Market Square mortgage note is 3.65%3.62%.
We do not believe there is any exposure to increases in interest rates related to the capital lease obligations of $120.0 million at December 31, 20162017, as the obligations are at fixed interest rates.
ITEM 8.FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
The financial statements and supplementary data filed as part of this report are set forth beginning on page F-1 of this report.
ITEM 9.CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE
There were no disagreements with our independent registered public accountants during 20162017, 20152016, or 20142015.
ITEM 9A.CONTROLS AND PROCEDURES

Management's Conclusions Regarding the Effectiveness of Disclosure Controls and Procedures
We carried out an evaluation, under the supervision and with the participation of management, including the Principal Executive Officer and Principal Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures pursuant to Rule 13a-15(e) under the Exchange Act as of the end of the period covered by this report. Based upon that evaluation,


Page 40


the Principal Executive Officer and Principal Financial Officer concluded that our disclosure controls and procedures were effective as of the end of the period covered by this report in providing a reasonable level of assurance that information we are required to disclose in reports that we file or submit under the Exchange Act is recorded, processed, summarized, and reported within the time periods in SEC rules and forms, including providing a reasonable level of assurance that information required to be disclosed by us in such reports is accumulated and communicated to our management, including our Principal Executive Officer and our Principal Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.
Report of Management on Internal Control Over Financial Reporting
Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act, as a process designed by, or under the supervision of, the Principal Executive Officer and Principal Financial Officer and effected by our management and other personnel to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with GAAP and includes those policies and procedures that:
pertain to the maintenance of records that in reasonable detail accurately and fairly reflect the transactions and disposition of our assets;
provide reasonable assurance that the transactions are recorded as necessary to permit preparation of financial statements in accordance with GAAP, and that our receipts and expenditures are being made only in accordance with authorizations of management and/or members of the board of directors; and


Page 39


provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of our assets that could have a material effect on the financial statements.
Because of the inherent limitations of internal control over financial reporting, including the possibility of human error and the circumvention or overriding of controls, material misstatements may not be prevented or detected on a timely basis. In addition, projections of any evaluation of effectiveness to future periods are subject to the risks that controls may become inadequate because of changes and conditions or that the degree of compliance with policies or procedures may deteriorate. Accordingly, even internal controls determined to be effective can provide only reasonable assurance that the information required to be disclosed in reports filed under the Exchange Act is recorded, processed, summarized, and represented within the time periods required.
Our management has assessed the effectiveness of our internal control over financial reporting at December 31, 2016.2017. To make this assessment, we used the criteria for effective internal control over financial reporting described in the Internal Control Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment, our management believes that our system of internal control over financial reporting met those criteria, and therefore our management has concluded that we maintained effective internal control over financial reporting as of December 31, 2016.2017.
The report of the Company's independent registered public accounting firm on internal control over financial reporting for the Company is included in Part IV, Item 15, of this annual report on Form 10-K and is incorporated herein by reference.
Changes in Internal Control Over Financial Reporting
There have been no changes in our internal control over financial reporting during the quarter ended December 31, 20162017, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.


Page 4041


REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the shareholders and the Board of Directors and Stockholders of
Columbia Property Trust, Inc.:
Opinion on Internal Control over Financial Reporting
We have audited the internal control over financial reporting of Columbia Property Trust, Inc. and subsidiaries (the "Company"“Company”) as of December 31, 2016,2017, based on criteria established in Internal Control-Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Commission (COSO). In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated Framework (2013) issued by COSO.
We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated financial statements and financial statement schedule as of and for the year ended December 31, 2017, of the Company and our report dated February 15, 2018, expressed an unqualified opinion on those consolidated financial statements and financial statement schedule.
Basis for Opinion
The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Report of Management on Internal Control overOver Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States).PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.
Definition and Limitations of Internal Control over Financial Reporting
A company’s internal control over financial reporting is a process designed by, or under the supervision of, the company’s principal executive and principal financial officers, or persons performing similar functions, and effected by the company’s board of directors, management, and other personnel to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.
Because of theits inherent limitations, of internal control over financial reporting including the possibility of collusion or improper management override of controls, material misstatements due to error or fraud may not be preventedprevent or detected on a timely basis.detect misstatements. Also, projections of any evaluation of the effectiveness of the internal control over financial reporting to future periods are subject to the risk that the controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2016, based on the criteria established in Internal Control- Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.
We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated financial statements and financial statement schedule as of and for the year ended December 31, 2016 of the Company and our report dated February 9, 2017 expressed an unqualified opinion on those consolidated financial statements and financial statement schedule.

/s/ DELOITTEDeloitte & TOUCHETouche LLP

Atlanta, Georgia
February 9, 201715, 2018


Page 4142


ITEM 9B.OTHER INFORMATION
During the fourth quarter of 2016,2017, there was no information that was required to be disclosed in a report on Form 8-K that was not disclosed in a report on Form 8-K.



Page 4243


PART III
We will file a definitive Proxy Statement for our 20172018 Annual Meeting of Stockholders (the "2017"2018 Proxy Statement") with the SEC, pursuant to Regulation 14A, not later than 120 days after the end of our fiscal year. Accordingly, certain information required by Part III has been omitted under General Instruction G(3) to Form 10-K. Only those sections of the 20172018 Proxy Statement that specifically address the items required to be set forth herein are incorporated by reference.
ITEM 10.DIRECTORS, EXECUTIVE OFFICERS, AND CORPORATE GOVERNANCE
We have adopted a Code of Ethics that applies to all of our executive officers and directors, including but not limited to, our principal executive officer and principal financial officer. Our Code of Ethics may be found at http://www.columbia.reit. Any amendments to, or waivers of, the Code of Ethics for our principal executive officer, principal financial officer, principal accounting officer, or controller or persons performing similar functions will be disclosed on our website promptly following the date of such amendment or waiver.
The other information required by this Item is incorporated by reference from our 20172018 Proxy Statement.
ITEM 11.EXECUTIVE COMPENSATION
The information required by this Item is incorporated by reference from our 20172018 Proxy Statement.
ITEM 12.SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED SHAREHOLDER MATTERS
See the table below for securities authorized to be issued under our equity compensation plan as of December 31, 2017. The other information required by this Item is incorporated by reference from our 20172018 Proxy Statement.
Plan Category 
Number of Securities
to Be Issued Upon 
Exercise of
Outstanding Options,
Warrants, and Rights
 Weighted-Average Exercise Price of Outstanding Options, Warrants, and Rights Common Stock Issued Under the LTIP 
Number of Securities Remaining Available 
for Future Issuance Under Equity Compensation Plans
Equity compensation plans
approved by security holders
 
 $
 1,293,931
 3,506,069
Equity compensation plans not
approved by security holders
 
 
 
 
Total 
 $
 1,293,931
 3,506,069
ITEM 13.CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE
The information required by this Item is incorporated by reference from our 20172018 Proxy Statement.
ITEM 14.PRINCIPAL ACCOUNTANT FEES AND SERVICES
The information required by this Item is incorporated by reference from our 20172018 Proxy Statement.


Page 4344


PART IV
ITEM 15.EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
(a) 1.    A list of the financial statements contained herein is set forth on page F-1 hereof.
(a) 2.    Schedule III - Real Estate Assets and Accumulated Depreciation
Information with respect to this item begins on page S-1 hereof. Other schedules are omitted because of the absence of conditions under which they are required or because the required information is given in the financial statements or notes thereto.
(a) 3.The Exhibits filed in response to Item 601 of Regulation S-K are listed on the Exhibit Index attached hereto.
(b)    See (a) 3 above.
(c)    See (a) 2 above.
EXHIBIT INDEX TO
2017 FORM 10-K OF
COLUMBIA PROPERTY TRUST, INC.

The following documents are filed as exhibits to this report. Exhibits that are not required for this report are omitted.
Ex.Description
3.1
3.2
3.3
3.4
3.5
3.6
3.7
4.1
4.2
4.3
4.4
4.5
4.6
10.1
10.2
10.3
10.4+
10.5+


Page 4445


Ex.Description
10.6*+
10.7*+
10.8
10.9
10.10
10.11
10.12
10.13
10.14
10.15
10.16
10.17
10.18*
12.1*
21.1*
23.1*
31.1*
31.2*
32.1*
101.INSXBRL Instance Document.
101.SCHXBRL Taxonomy Extension Schema.
101.CALXBRL Taxonomy Extension Calculation Linkbase.
101.DEFXBRL Taxonomy Extension Definition Linkbase.
101.LABXBRL Taxonomy Extension Label Linkbase.
101.PREXBRL Taxonomy Extension Presentation Linkbase.


Page 46


Ex.Description
*Filed herewith.
+Identifies each management contract or compensatory plan required to be filed.


Page 47


SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
 
  
COLUMBIA PROPERTY TRUST, INC.
(Registrant)
    
Dated:February 9, 201715, 2018By:/s/ JAMESJames A. FLEMINGFleming
   
JAMES A. FLEMING
Executive Vice President and Chief Financial Officer (Principal Financial Officer)
    
Dated:February 9, 201715, 2018 /s/ WENDYWendy W. GILLGill
   
WENDY W. GILL
Principal Accounting Officer
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacity as and on the date indicated.
Signature Title Date
     
/s/ Carmen M. Bowser Independent Director  
Carmen M. Bowser   February 9, 201715, 2018
     
/s/ Charles R. Brown Independent Director  
Charles R. Brown   February 9, 201715, 2018
     
/s/ Richard W. Carpenter Independent Director  
Richard W. Carpenter   February 9, 201715, 2018
     
/s/ John L. Dixon Independent Director  
John L. Dixon   February 9, 201715, 2018
     
/s/ David B. Henry Independent Director  
David B. Henry   February 9, 201715, 2018
     
/s/ Murray J. McCabe Independent Director  
Murray J. McCabe   February 9, 201715, 2018
     
/s/ E. Nelson Mills 
President, Chief Executive Officer and Director
(Principal Executive Officer)
  
E. Nelson Mills  February 9, 201715, 2018
/s/ Constance B. MooreIndependent Director
Constance B. MooreFebruary 15, 2018
     
/s/ Michael S. Robb Independent Director  
Michael S. Robb   February 9, 201715, 2018
     
/s/ George W. Sands Independent Director  
George W. Sands   February 9, 201715, 2018
     
/s/ Thomas G. Wattles Independent Director  
Thomas G. Wattles   February 9, 201715, 2018


Page 4548


EXHIBIT INDEX
TO
2016 FORM 10-K OF
COLUMBIA PROPERTY TRUST, INC.

The following documents are filed as exhibits to this report. Exhibits that are not required for this report are omitted.
Ex.Description
3.1Second Amended and Restated Articles of Incorporation as Amended by the First Articles of Amendment (incorporated by reference to Exhibit 3.1 to the Company's Annual Report on Form 10-K filed with the Commission on March 1, 2013).
3.2Second Articles of Amendment (incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K filed with the Commission on August 15, 2013).
3.3Third Articles of Amendment (incorporated by reference to Exhibit 3.2 to the Company's Current Report on Form 8-K filed with the Commission on August 15, 2013).
3.4Fourth Articles of Amendment (incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K filed with the Commission on July 1, 2014).
3.5Articles Supplementary (incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K filed with the Commission on September 4, 2013).
3.6Third Amended and Restated Bylaws (incorporated by reference to Exhibit 3.2 to the Company's Current Report on Form 8-K filed with the Commission on September 4, 2013).
4.1Statement regarding restrictions on transferability of shares of common stock (to appear on stock certificate or to be sent upon request and without charge to stockholders issued shares without certificates) (incorporated by reference to Exhibit 4.1 to the Company's Annual Report on Form 10-K filed with the Commission on March 1, 2013).
4.2Indenture, dated March 12, 2015 (incorporated by reference to Exhibit 4.1 to the Company's Current Report on Form 8-K filed with the Commission on March 12, 2015).
4.3Supplemental Indenture, dated March 12, 2015 (incorporated by reference to Exhibit 4.2 to the Company's Current Report on Form 8-K filed with the Commission on March 12, 2015).
4.4Form of 4.150% Senior Notes due 2025 (incorporated by reference to in Exhibit 4.3 to the Company's Current Report on Form 8-K filed with the Commission on March 12, 2013).
4.5Supplemental Indenture, dated August 12, 2016 (incorporated by reference to Exhibit 4.1 to the Company's Current Report on Form 8-K filed with the Commission on August 12, 2016).
4.6Form of 3.650% Senior Notes due 2026 (incorporated by reference to Exhibit 4.2 to the Company's Current Report on Form 8-K filed with the Commission on August 12, 2016).
10.1Amended and Restated Term Loan Agreement dated as of August 21, 2013, by and among Columbia Property Trust Operating Partnership, L.P., as Borrower; J.P. Morgan Securities LLC and PNC Capital Markets LLC, as Joint Lead Arrangers and Joint Bookrunners; JPMorgan Chase Bank, N.A., as Administrative Agent; PNC Bank, National Association, as Syndication Agent; and Regions Bank, U.S. Bank National Association, and Union Bank, N.A., as Documentation Agents (incorporated by reference to Exhibit 10.4 to the Company's Quarterly Report on Form 10-Q filed with the Commission on November 5, 2013).
10.2Supplemental Indenture dated as of February 3, 2012, among Wells Operating Partnership II, L.P., the Guarantors Party Hereto, and U.S. Bank National Association, as Trustee (incorporated by reference to Exhibit 10.3 to the Company's Quarterly Report on Form 10-Q filed with the Commission on May 4, 2012).
10.3Columbia Property Trust, Inc. Long-Term Incentive Plan (incorporated by reference to Exhibit A to the Company's Proxy Statement for its 2013 Annual Meeting of Stockholders filed with the Commission on April 25, 2013).
10.4+Form of Restricted Stock Award Agreement under the Columbia Property Trust, Inc. Long-Term Incentive Plan (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed with the Commission on January 24, 2014).
10.5+Columbia Property Trust Executive Change in Control Plan (incorporated by reference to Exhibit 10.1 to the Company's Current Report on From 8-K filed with the Commission on December 19, 2016).
10.6*+Form of 2017 Restricted Stock Award (Time-Based) under the Columbia Property Trust Inc. Long-Term Incentive Plan.
10.7*+Form of 2017 Restricted Stock Award (Performance-Based) under the Columbia Property Trust Inc. Long-Term Incentive Plan.
10.8Amended and Restated Credit Agreement dated as of August 21, 2013, by and among Columbia Property Trust Operating Partnership, L.P., as Borrower; J.P. Morgan Securities LLC and PNC Capital Markets LLC, as Joint Lead Arrangers and Joint Bookrunners; JPMorgan Chase Bank, N.A., as Administrative Agent; PNC Bank, National Association, as Syndication Agent and Regions Bank; U.S. Bank National Association; and BMO Capital Market Financing, Inc., as Documentation Agents (incorporated by reference to Exhibit 10.3 to the Company's Quarterly Report on Form 10-Q filed with the Commission on November 5, 2013).
10.9Investor Services Agreement between the Company and Wells Real Estate Funds, Inc. dated February 28, 2013, and effective as of March 1, 2013 (incorporated by reference to Exhibit 10.3 to the Company's Quarterly Report on Form 10-Q filed with the Commission on May 8, 2013).
10.10Consulting Services Agreement between the Company and Wells Real Estate Funds, Inc. dated February 28, 2013, and effective as of March 1, 2013 (incorporated by reference to Exhibit 10.4 to the Company's Quarterly Report on Form 10-Q filed with the Commission on May 8, 2013).
10.11Assignment and Assumption Agreement between Wells Real Estate Funds, Inc. to Wells Operating Partnership II, L.P., dated as of February 28, 2013 (related to Wells Real Estate Advisory Services II, LLC) (incorporated by reference to Exhibit 10.5 to the Company's Quarterly Report on Form 10-Q filed with the Commission on May 8, 2013).
10.12Assignment and Assumption Agreement between Wells Real Estate Funds, Inc. to Wells Operating Partnership II, L.P. dated as of February 28, 2013 (related to Wells Real Estate Services, LLC) (incorporated by reference to Exhibit 10.6 to the Company's Quarterly Report on Form 10-Q filed with the Commission on May 8, 2013).


Page 46


Ex.Description
10.13Term Loan Agreement dated as of January 6, 2015, by and among the Columbia Property Trust Operating Partnership, L.P., J.P. Morgan Securities LLC, as sole lead arranger and sole bookrunner, JPMorgan Chase Bank, N.A., as administrative agent, PNC Bank, National Association, as syndication agent, Morgan Stanley Bank, N.A., U.S. Bank National Association and Wells Fargo Bank, National Association, as documentation agents, and each of the financial institutions a signatory thereto, as lenders.
10.14Amended and Restated Revolving Credit and Term Loan Agreement, dated July 30, 2015, by and among Columbia Property Trust Operating Partnership, L.P., as borrower, J.P. Morgan Securities LLC and PNC Capital Markets LLC, as joint lead arrangers and joint bookrunners, JPMorgan Chase Bank, N.A., as administrative agent, PNC Bank, National Association, as syndication agent and Regions Bank, U.S. Bank National Association, MUFG Union Bank, N.A. and Wells Fargo Bank, N.A., as documentation agents, and each of the financial institutions a signatory thereto, as lenders (incorporated by reference to Exhibit 10.1 to the Company's Quarterly Report on Form 10-Q filed with the Commission on October 29, 2015).
10.15Term Loan Agreement, dated July 30, 2015, by and among Columbia Property Trust Operating Partnership, L.P., as borrower, the financial institutions party thereto, as lenders, Wells Fargo Bank, National Association, as administrative agent, Wells Fargo Securities, LLC, Regions Capital Markets and U.S. Bank National Association, as joint lead arrangers and joint bookrunners and Regions Bank and U.S. National Association, as syndication agents, and PNC Bank, National Association, as documentation agent (incorporated by reference to Exhibit 10.1 to the Company's Quarterly Report on Form 10-Q filed with the Commission on October 29, 2015).
10.16Term Loan Agreement, dated August 4, 2015, by and among the Columbia Property Trust Operating Partnership, L.P., as borrower, J.P. Morgan Securities LLC, as joint lead arranger and sole bookrunner, JPMorgan Chase Bank, N.A., as administrative agent, PNC Bank, National Association, Capital One, National Association, and Wells Fargo Bank, N.A. as joint lead arrangers and co-syndication agents, and each of the financial institutions a signatory thereto, as lenders (incorporated by reference to Exhibit 10.1 to the Company's Quarterly Report on Form 10-Q filed with the Commission on October 29, 2015).
21.1*Subsidiaries of Columbia Property Trust, Inc.
23.1*Consent of Deloitte & Touche LLP.
31.1*Certification of the Principal Executive Officer of the Company, pursuant to Securities Exchange Act Rules 13a-14(a) as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2*Certification of the Principal Financial Officer of the Company, pursuant to Securities Exchange Act Rules 13a-14(a) as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1*Certification of the Principal Executive Officer and Principal Financial Officer of the Company, pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INSXBRL Instance Document.
101.SCHXBRL Taxonomy Extension Schema.
101.CALXBRL Taxonomy Extension Calculation Linkbase.
101.DEFXBRL Taxonomy Extension Definition Linkbase.
101.LABXBRL Taxonomy Extension Label Linkbase.
101.PREXBRL Taxonomy Extension Presentation Linkbase.
*Filed herewith.
+Identifies each management contract or compensatory plan required to be filed.



Page 47


INDEX TO CONSOLIDATED FINANCIAL STATEMENTS


F-1



REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the shareholders and the Board of Directors and Stockholders of
Columbia Property Trust, Inc.:
Opinion on the Financial Statements
We have audited the accompanying consolidated balance sheets of Columbia Property Trust, Inc. and subsidiaries (the "Company") as of December 31, 20162017 and 2015, and2016, the related consolidated statements of operations, comprehensive income, equity, and cash flows, for each of the three years in the period ended December 31, 2016. Our audits also included2017, and the financial statementrelated notes and the schedule listed in the Index at Item 15. These financial statements and financial statement schedule are15(a)(2) (collectively referred to as the responsibility of the Company’s management. Our responsibility is to express an"financial statements"). In our opinion, on the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2017 and financial statement schedule based on our audits.2016, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2017, in conformity with accounting principles generally accepted in the United States of America.
We conducted our auditshave also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States). (PCAOB), the Company's internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated February 15, 2018, expressed an unqualified opinion on the Company's internal control over financial reporting.
Basis for Opinion
These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includesmisstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence supportingregarding the amounts and disclosures in the financial statements. An auditOur audits also includes assessingincluded evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statement presentation.statements. We believe that our audits provide a reasonable basis for our opinion.
In our opinion, such consolidated financial statements present fairly, in all material respects, the financial position of Columbia Property Trust, Inc. and subsidiaries as of December 31, 2016 and 2015, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2016, in conformity with accounting principles generally accepted in the United States of America. Also, in our opinion, such financial statement schedule, when considered in relation to the basic consolidated financial statements taken as a whole, presents fairly, in all material respects, the information set forth therein.
We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the Company’s internal control over financial reporting as of December 31, 2016, based on criteria established in Internal Control-Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated February 9, 2017 expressed an unqualified opinion on the Company’s internal control over financial reporting.
/s/ Deloitte & Touche LLP

Atlanta, Georgia
February 9, 201715, 2018

We have served as the Company's auditor since 2008.



F-2


COLUMBIA PROPERTY TRUST, INC.
CONSOLIDATED BALANCE SHEETS
(in thousands, except share and per-share amounts)
December 31,December 31,
2016 20152017 2016
Assets:      
Real estate assets, at cost:   
Real Estate Assets, at Cost:   
Land$751,351
 $896,467
$825,208
 $751,351
Buildings and improvements, less accumulated depreciation of $435,457 and $613,639, as of December 31, 2016 and 2015, respectively2,121,150
 2,897,431
Intangible lease assets, less accumulated amortization of $112,777 and $250,085, as of December 31, 2016 and 2015, respectively193,311
 259,136
Buildings and improvements, less accumulated depreciation of $388,796 and $435,457, as of December 31, 2017 and 2016, respectively2,063,419
 2,121,150
Intangible lease assets, less accumulated amortization of $94,065 and $112,777, as of December 31, 2017 and 2016, respectively199,260
 193,311
Construction in progress36,188
 31,847
44,742
 36,188
Real estate assets held for sale, less accumulated depreciation and amortization of $180,791 as of December 31, 2016412,506
 

 412,506
Total real estate assets3,514,506
 4,084,881
3,132,629
 3,514,506
Investment in unconsolidated joint venture127,346
 118,695
Investment in unconsolidated joint ventures943,242
 127,346
Cash and cash equivalents216,085
 32,645
9,567
 216,085
Tenant receivables, net of allowance for doubtful accounts of $31 and $8, as of December 31, 2016 and 2015, respectively7,163
 11,670
Tenant receivables, net of allowance for doubtful accounts of $0 and $31 as of December 31, 2017 and 2016, respectively2,128
 7,163
Straight-line rent receivable64,811
 109,062
92,235
 64,811
Prepaid expenses and other assets24,275
 35,848
27,683
 24,275
Intangible lease origination costs, less accumulated amortization of $74,578 and $181,482, as of December 31, 2016 and 2015, respectively54,279
 77,190
Deferred lease costs, less accumulated amortization of $22,753 and $40,817, as of December 31, 2016 and 2015, respectively125,799
 88,127
Intangible lease origination costs, less accumulated amortization of $57,465 and $74,578, as of December 31, 2017 and 2016, respectively42,959
 54,279
Deferred lease costs, less accumulated amortization of $26,464 and $22,753, as of December 31, 2017 and 2016, respectively141,096
 125,799
Investment in development authority bonds120,000
 120,000
120,000
 120,000
Other assets held for sale, less accumulated amortization of $34,152 as of December 31, 201645,529
 

 45,529
Total assets$4,299,793
 $4,678,118
$4,511,539
 $4,299,793
Liabilities:      
Line of credit and notes payable, net of deferred financing costs of $3,136 and $4,492, as of December 31, 2016 and 2015, respectively$721,466
 $1,130,571
Bonds payable, net of discount of $1,664 and $1,020 and deferred financing costs of $5,364 and $3,721, as of December 31, 2016 and 2015, respectively692,972
 595,259
Line of credit and notes payable, net of deferred financing costs of $2,991 and $3,136, as of December 31, 2017 and 2016, respectively$971,185
 $721,466
Bonds payable, net of discount of $1,484 and $1,664 and deferred financing costs of $4,760 and $5,364, as of December 31, 2017 and 2016, respectively693,756
 692,972
Accounts payable, accrued expenses, and accrued capital expenditures131,028
 98,759
125,002
 131,028
Dividends payable36,727
 37,354
23,961
 36,727
Deferred income19,694
 24,814
18,481
 19,694
Intangible lease liabilities, less accumulated amortization of $44,564 and $81,496, as of December 31, 2016 and 2015, respectively33,375
 57,167
Intangible lease liabilities, less accumulated amortization of $19,660 and $44,564, as of December 31, 2017 and 2016, respectively27,218
 33,375
Obligations under capital leases120,000
 120,000
120,000
 120,000
Liabilities held for sale, less accumulated amortization of $1,239 as of December 31, 201641,763
 

 41,763
Total liabilities1,797,025
 2,063,924
1,979,603
 1,797,025
Commitments and Contingencies (Note 7)
 

 
Equity:      
Common stock, $0.01 par value, 225,000,000 shares authorized, 122,184,193 and 124,363,073 shares issued and outstanding as of December 31, 2016 and 2015, respectively1,221
 1,243
Common stock, $0.01 par value, 225,000,000 shares authorized, 119,789,106 and 122,184,193 shares issued and outstanding as of December 31, 2017 and 2016, respectively1,198
 1,221
Additional paid-in capital4,538,912
 4,588,303
4,487,071
 4,538,912
Cumulative distributions in excess of earnings(2,036,482) (1,972,916)(1,957,236) (2,036,482)
Accumulated other comprehensive loss(883) (2,436)
Accumulated other comprehensive income (loss)903
 (883)
Total equity2,502,768
 2,614,194
2,531,936
 2,502,768
Total liabilities and equity$4,299,793
 $4,678,118
$4,511,539
 $4,299,793


See accompanying notes.


F-3

Table of Contents
Index to Financial Statements

COLUMBIA PROPERTY TRUST, INC.
CONSOLIDATED STATEMENTS OF OPERATIONS
(in thousands, except per-share amounts)
Years ended December 31,Years Ended December 31,
2016 2015 20142017 2016 2015
Revenues:          
Rental income$366,186

$436,048
 $414,541
$257,059

$366,186
 $436,048
Tenant reimbursements69,770

99,655
 95,375
23,511

69,770
 99,655
Hotel income22,661
 24,309
 22,885
1,339
 22,661
 24,309
Asset and property management fee income3,782
 2,122
 605
Other property income14,926
 6,053
 7,996
3,309
 12,804
 5,448
473,543
 566,065
 540,797
289,000
 473,543
 566,065
Expenses:          
Property operating costs154,968
 188,078
 163,722
87,805
 154,968
 188,078
Hotel operating costs18,686
 19,615
 18,792
2,089
 18,686
 19,615
Asset and property management fees1,415
 1,816
 2,258
Asset and property management fee expenses918
 1,415
 1,816
Depreciation108,543
 131,490
 117,766
80,394
 108,543
 131,490
Amortization56,775
 87,128
 78,843
32,403
 56,775
 87,128
Impairment loss on real estate assets
 
 25,130
General and administrative33,876
 29,683
 31,275
General and administrative – corporate34,966
 33,876
 29,683
General and administrative – unconsolidated joint ventures1,454
 
 
Acquisition expenses
 3,675
 14,142

 
 3,675
374,263
 461,485
 451,928
240,029
 374,263
 461,485
Real estate operating income99,280
 104,580
 88,869
Other income (expense):     

48,971
 99,280
 104,580
Other Income (Expense):     
Interest expense(67,609) (85,296) (75,711)(60,516) (67,609) (85,296)
Interest and other income7,288
 7,254
 7,275
9,529
 7,288
 7,254
Loss on interest rate swaps
 (1,110) (371)
 
 (1,110)
Loss on the early extinguishment of debt(18,997) (3,149) (23)(325) (18,997) (3,149)
(79,318) (82,301) (68,830)(51,312) (79,318) (82,301)
Income before income tax, unconsolidated joint ventures, and gains on sales of real estate assets19,962
 22,279
 20,039
Income tax expense(445) (378) (662)
Loss from unconsolidated joint venture(7,561) (1,142) 
Income before gains of sales of real estate assets11,956
 20,759
 19,377
Income (loss) before income tax, unconsolidated joint ventures, and gains on sales of real estate assets(2,341) 19,962
 22,279
Income tax benefit (expense)213
 (445) (378)
Income (loss) from unconsolidated joint ventures2,651
 (7,561) (1,142)
Income before gains on sales of real estate assets523
 11,956
 20,759
Gains on sales of real estate assets72,325
 23,860
 75,275
175,518
 72,325
 23,860
Income from continuing operations84,281
 44,619
 94,652
Discontinued operations:     
Operating loss from discontinued operations
 
 (390)
Loss on disposition of discontinued operations
 
 (1,627)
Loss from discontinued operations
 
 (2,017)
Net income$84,281
 $44,619
 $92,635
$176,041
 $84,281
 $44,619
Per-share information – basic:     
Income from continuing operations$0.68
 $0.36
 $0.76
Loss from discontinued operations$0.00
 $0.00
 $(0.02)
Per-Share Information – Basic:     
Net income$0.68
 $0.36
 $0.74
$1.45
 $0.68
 $0.36
Weighted-average common shares outstanding – basic123,130
 124,757
 124,860
120,795
 123,130
 124,757
Per-share information – diluted:     
Income from continuing operations$0.68
 $0.36
 $0.76
Loss from discontinued operations$0.00
 $0.00
 $(0.02)
Per-Share Information – Diluted:     
Net income$0.68
 $0.36
 $0.74
$1.45
 $0.68
 $0.36
Weighted-average common shares outstanding – diluted123,228
 124,847
 124,918
121,159
 123,228
 124,847

See accompanying notes.


F-4

Table of Contents
Index to Financial Statements

COLUMBIA PROPERTY TRUST, INC.
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(in thousands)

Years ended December 31,Years Ended December 31,
2016 2015 20142017 2016 2015
Net income$84,281
 $44,619
 $92,635
$176,041
 $84,281
 $44,619
Market value adjustment to interest rate swap1,553
 (1,570) 1,339
1,786
 1,553
 (1,570)
Settlement of interest rate swap
 1,102
 

 
 1,102
Comprehensive income$85,834
 $44,151
 $93,974
$177,827
 $85,834
 $44,151

See accompanying notes.




F-5

Table of Contents
Index to Financial Statements

COLUMBIA PROPERTY TRUST, INC.
CONSOLIDATED STATEMENTS OF EQUITY
(in thousands, except per-share amounts)

EquityEquity
Common Stock 
Additional
Paid-In
Capital
 
Cumulative
Distributions
in Excess of
Earnings
 
Accumulated Other
Comprehensive
Income (Loss)
 TotalCommon Stock 
Additional
Paid-In
Capital
 
Cumulative
Distributions
in Excess of
Earnings
 
Accumulated Other
Comprehensive
Income (Loss)
 Total
Shares Amount Shares Amount 
Balance, December 31, 2013124,830
 $1,248
 $4,600,166
 $(1,810,284) $(3,307) $2,787,823
Common stock issued to employees and directors, and amortized (net of income tax witholdings)143
 1
 1,642
 
 
 1,643
Distributions to common stockholders ($1.20 per share)
 
 
 (149,962) 
 (149,962)
Net income
 
 
 92,635
 
 92,635
Market value adjustment to interest rate swap
 
 
 
 1,339
 1,339
Balance, December 31, 2014124,973

1,249

4,601,808

(1,867,611)
(1,968)
2,733,478
124,973
 $1,249
 $4,601,808
 $(1,867,611) $(1,968) $2,733,478
Repurchases of common stock(721) (7) (16,328) 
 
 (16,335)(721) (7) (16,328) 
 
 (16,335)
Common stock issued to employees and directors, and amortized (net of income tax witholdings)111
 1
 2,823
 
 
 2,824
111
 1
 2,823
 
 
 2,824
Distributions to common stockholders ($1.20 per share)
 
 
 (149,924) 
 (149,924)
 
 
 (149,924) 
 (149,924)
Net income
 
 
 44,619
 
 44,619

 
 
 44,619
 
 44,619
Market value adjustment to interest rate swap
 
 
 
 (1,570) (1,570)
 
 
 
 (1,570) (1,570)
Settlement of interest rate swap
 
 
 
 1,102
 1,102

 
 
 
 1,102
 1,102
Balance, December 31, 2015124,363

1,243

4,588,303

(1,972,916)
(2,436)
2,614,194
124,363

1,243

4,588,303

(1,972,916)
(2,436)
2,614,194
Repurchases of common stock(2,399) (24) (52,777) 
 
 (52,801)(2,399) (24) (52,777) 
 
 (52,801)
Common stock issued to employees and directors, and amortized (net of income tax witholdings)220
 2
 3,386
 
 
 3,388
220
 2
 3,386
 
 
 3,388
Distributions to common stockholders ($1.20 per share)
 
 
 (147,847) 
 (147,847)
 
 
 (147,847) 
 (147,847)
Net income
 
 
 84,281
 
 84,281

 
 
 84,281
 
 84,281
Market value adjustment to interest rate swap
 
 
 
 1,553
 1,553

 
 
 
 1,553
 1,553
Balance, December 31, 2016122,184
 $1,221
 $4,538,912
 $(2,036,482) $(883) $2,502,768
122,184

1,221

4,538,912

(2,036,482)
(883)
2,502,768
Repurchases of common stock(2,682) (26) (57,602) 
 
 (57,628)
Common stock issued to employees and directors, and amortized (net of income tax witholdings)287
 3
 5,761
 
 
 5,764
Distributions to common stockholders ($0.80 per share)
 
 
 (96,795) 
 (96,795)
Net income
 
 
 176,041
 
 176,041
Market value adjustment to interest rate swap
 
 
 
 1,786
 1,786
Balance, December 31, 2017119,789
 $1,198
 $4,487,071
 $(1,957,236) $903
 $2,531,936

See accompanying notes.


F-6

Table of Contents
Index to Financial Statements

COLUMBIA PROPERTY TRUST, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)
Years ended December 31,Years Ended December 31,
2016 2015 20142017 2016 2015
Cash Flows from Operating Activities:          
Net income$84,281
 $44,619
 $92,635
$176,041
 $84,281
 $44,619
Adjustments to reconcile net income to net cash provided by operating activities:     
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:     
Straight-line rental income(21,875) (16,632) (9,916)(32,737) (21,875) (16,632)
Depreciation108,543
 131,490
 117,766
80,394
 108,543
 131,490
Amortization52,530
 78,000
 74,212
31,907
 52,530
 78,000
Impairment losses on real estate assets
 
 25,130
Noncash interest expense3,549
 4,335
 3,055
3,009
 3,549
 4,335
Loss on early extinguishment of debt18,997
 3,149
 23
325
 18,997
 3,149
Gain on interest rate swaps
 (1,532) (4,945)
 
 (1,532)
Gains on sale of real estate(72,325) (23,860) (73,648)
Loss from unconsolidated joint venture7,561
 1,142
 
Gains on sales of real estate assets(175,518) (72,325) (23,860)
Loss (income) from unconsolidated joint ventures(2,651) 7,561
 1,142
Distributions of earnings from unconsolidated joint ventures3,681
 
 
Stock-based compensation expense4,558
 3,548
 1,975
7,580
 4,558
 3,548
Changes in assets and liabilities, net of acquisitions and dispositions:     
Decrease (increase) in tenant receivables, net4,251
 (4,414) (227)
Changes in Assets and Liabilities, Net of Acquisitions and Dispositions:     
Decrease (increase) in tenant receivables, net
4,222
 4,251
 (4,414)
Decrease (increase) in prepaid expenses and other assets5,533
 (2,155) 5,442
(1,754) 5,533
 (2,155)
Increase (decrease) in accounts payable and accrued expenses(1,607) 3,330
 2,589
Increase (decrease) in accounts payable and accrued expenses
(28,133) (1,607) 3,330
Increase (decrease) in deferred income(905) 2,060
 2,815
(4,442) (905) 2,060
Net cash provided by operating activities193,091
 223,080
 236,906
Cash Flows from Investing Activities:     
Net cash provided by operating activities
61,924
 193,091
 223,080
Cash Flows From Investing Activities:     
Net proceeds from the sale of real estate603,732
 596,734
 418,207
737,631
 603,732
 596,734
Real estate acquisitions
 (1,062,031) (335,986)(604,769) 
 (1,062,031)
Deposits10,000
 
 (27,000)
 10,000
 
Capital improvements(39,521) (83,371) (54,005)
Capital improvements and development costs(86,805) (39,521) (83,371)
Deferred lease costs paid(32,386) (22,531) (25,004)(26,722) (32,386) (22,531)
Investment in unconsolidated joint venture(16,212) (5,500) 
Investments in unconsolidated joint ventures(369,043) (16,212) (5,500)
Distributions in excess of earnings from unconsolidated joint ventures1,985
 
 
Net cash provided by (used in) investing activities525,613
 (576,699) (23,788)(347,723) 525,613
 (576,699)
Cash Flows from Financing Activities:     
Cash Flows From Financing Activities:     
Financing costs paid(3,114) (9,729) (1,482)(1,269) (3,114) (9,729)
Prepayments to settle debt and interest rate swap(17,921) (3,165) 

 (17,921) (3,165)
Proceeds from lines of credit and notes payable435,000
 1,884,000
 283,000
783,000
 435,000
 1,884,000
Repayments of lines of credit and notes payable(845,460) (1,854,512) (294,739)(533,427) (845,460) (1,854,512)
Proceeds from issuance of bonds payable348,691
 349,507
 

 348,691
 349,507
Repayment of bonds payable(250,000) 
 

 (250,000) 
Distributions paid to stockholders(148,474) (112,570) (149,962)(109,561) (148,474) (112,570)
Redemptions of common stock(53,986) (17,057) 
(59,462) (53,986) (17,057)
Net cash provided by (used in) financing activities(535,264) 236,474
 (163,183)79,281
 (535,264) 236,474
Net increase (decrease) in cash and cash equivalents183,440
 (117,145) 49,935
(206,518) 183,440
 (117,145)
Cash and cash equivalents, beginning of period32,645
 149,790
 99,855
216,085
 32,645
 149,790
Cash and cash equivalents, end of period$216,085
 $32,645
 $149,790
$9,567
 $216,085
 $32,645
See accompanying notes.


F-7

Table of Contents
Index to Financial Statements

COLUMBIA PROPERTY TRUST, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
DECEMBER 31, 20162017, 20152016, AND 20142015
1.Organization
Columbia Property Trust, Inc. ("Columbia Property Trust") (NYSE: CXP) is a Maryland corporation that operates as a real estate investment trust ("REIT") for federal income tax purposes and owns and operates commercial real estate properties. Columbia Property Trust was incorporated in 2003, commenced operations in 2004, and conducts business primarily through Columbia Property Trust Operating Partnership, L.P. ("Columbia Property Trust OP"), a Delaware limited partnership. Columbia Property Trust is the general partner and sole owner of Columbia Property Trust OP and possesses full legal control and authority over its operations. Columbia Property Trust OP acquires, develops,redevelops, owns, leases, and operates real properties directly, through wholly owned subsidiaries, or through unconsolidated joint ventures. ReferencesUnless otherwise noted, references to Columbia Property Trust, "we," "us," or "our" herein shall include Columbia Property Trust and all subsidiaries of Columbia Property Trust, direct and indirect.
Columbia Property Trust typically invests in high-quality, income-generating office properties, located in high-barrier to entry markets.properties. As of December 31, 2016,2017, Columbia Property Trust owned 21 office19 operating properties, of which 14 were wholly owned and one hotel, whichfive were owned through unconsolidated joint ventures. These properties are located primarily in New York, San Francisco, Washington, D.C., and Atlanta, contain approximately 11.0a total of 9.2 million rentable square feet, of commercial space, located in nine states and the District of Columbia. All of the office properties are wholly owned except for one property, which is owned through an unconsolidated joint venture,were approximately 96.2% leased as described in Note 4, Unconsolidated Joint Venture. As of December 31, 2016, the office properties, including 51% of the Market Square buildings, which Columbia Property Trust owns through an unconsolidated joint venture, were approximately 90.6% leased. In January 2017, Columbia Property Trust sold three office properties in Houston, Texas, and the Key Center Tower and Key Center Marriott in Cleveland, Ohio. The terms of these transactions are described in Note 3, Real Estate Transactions.2017.
2.Summary of Significant Accounting Policies
Basis of Presentation
The consolidated financial statements of Columbia Property Trust have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") and include the accounts of Columbia Property Trust, Columbia Property Trust OP, and any variable interest entity ("VIE") in which Columbia Property Trust or Columbia Property Trust OP was deemed the primary beneficiary. With respect to entities that are not VIEs, Columbia Property Trust's consolidated financial statements shall also include the accounts of any entity in which Columbia Property Trust, Columbia Property Trust OP, or its subsidiaries own a controlling financial interest and any limited partnership in which Columbia Property Trust, Columbia Property Trust OP, or its subsidiaries own a controlling general partnership interest. In determining whether Columbia Property Trust or Columbia Property Trust OP has a controlling interest, the following factors are considered, among other things: the ownership of voting interests, protective rights, and participatory rights of the investors.
All intercompany balances and transactions have been eliminated in consolidation.
Use of Estimates
The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the accompanying consolidated financial statements and the accompanying notes. Actual results could differ from those estimates.
Fair Value Measurements
Columbia Property Trust estimates the fair value of its assets and liabilities (where currently required under GAAP) consistent with the provisions of Accounting Standard Codification 820, Fair Value Measurements ("ASC 820"). Under this standard, fair value is defined as the price that would be received upon sale of an asset or paid upon transfer of a liability in an orderly transaction between market participants at the measurement date. While various techniques and assumptions can be used to estimate fair value depending on the nature of the asset or liability, the accounting standard for fair value measurements and disclosures provides the following fair value technique parameters and hierarchy, depending upon availability:
Level 1 – Assets or liabilities for which the identical term is traded on an active exchange, such as publicly traded instruments or futures contracts.
Level 2 – Assets and liabilities valued based on observable market data for similar instruments.


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Level 3 – Assets or liabilities for which significant valuation assumptions are not readily observable in the market. Such assets or liabilities are valued based on the best available data, some of which may be internally developed. Significant assumptions may include risk premiums that a market participant would consider.


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Real Estate Assets
Real estate assets are stated at cost, less accumulated depreciation and amortization. Amounts capitalized to real estate assets consist of the cost of acquisition or construction, and any tenant improvements or major improvements and betterments that extend the useful life of the related asset. All repairs and maintenance are expensed as incurred. Additionally, Columbia Property Trust capitalizes interest while the development of a real estate asset is in progress. During the years ended December 31, 2017 and 2016, and 2015, $0.3$0.7 million and $0.6$0.3 million of interest was capitalized, respectively.
Columbia Property Trust is required to make subjective assessments as to the useful lives of its depreciable assets. To determine the appropriate useful life of an asset, Columbia Property Trust considers the period of future benefit of the asset to determine the appropriate useful lives.asset. These assessments have a direct impact on net income. The estimated useful lives of its assets by class are as follows:
Buildings  40-45 years
Building and site improvements  5-25 years
Tenant improvements  Shorter of economic life or lease term
Intangible lease assets  Lease term
Evaluating the Recoverability of Real Estate Assets
Columbia Property Trust continually monitors events and changes in circumstances that could indicate that the carrying amounts of its real estate and related intangible assets, of both operating properties and properties under construction, in which Columbia Property Trust has an ownership interest, either directly or through investments in joint ventures, may not be recoverable. When indicators of potential impairment are present that suggest that the carrying amounts of real estate assets and related intangible assets (liabilities) may not be recoverable, Columbia Property Trust assesses the recoverability of these assets by determining whether the respective carrying values will be recovered through the estimated undiscounted future operating cash flows expected from the use of the assets and their eventual disposition. In the event that such expected undiscounted future cash flows do not exceed the carrying values, Columbia Property Trust adjusts the carrying value of the real estate assets and related intangible assets to the estimated fair values, pursuant to the property, plant, and equipment accounting standard for the impairment or disposal of long-lived assets, and recognizes an impairment loss. Estimated fair values are calculated based on the following information, in orderhierarchy of preference, depending upon availability:information: (Level 1) recently quoted market prices, (Level 2) market prices for comparable properties, or (Level 3) the present value of future cash flows, including estimated residual value. Certain of Columbia Property Trust's assets may be carried at more than an amount that exceeds that which could be realized in a current disposition transaction. Columbia Property Trust has determined that there is no impairment in the carrying values of its real estate assets and related intangible assets for the years endedare recoverable as of December 31, 2016 and 2015.2017.
Projections of expected future operating cash flows require that Columbia Property Trust estimates future market rental income amounts subsequent to the expiration of current lease agreements, property operating expenses, the number of months it takes to re-lease the property, and the number of years the property is held for investment, among other factors. TheDue to the inherent subjectivity of the assumptions used in the future cash flow analysis, including discount rates, could result in an incorrect assessment of the property's fair value and could result in the misstatement of the carrying value of Columbia Property Trust's real estate assets and related intangible assets and net income.
In the first quarter of 2014, Columbia Property Trust revised its investment strategy for the 160 Park Avenue Building in Florham Park, New Jersey, to sell the property to a user in the near-term. As a result, management reduced its intended holding period for the building and reevaluated the property's carrying value as of March 31, 2014, pursuant to the accounting policy outlined above. Columbia Property Trust concluded that the 160 Park Avenue Building was not recoverable and reduced its carrying value to reflect its fair value, estimated based on recently quoted market prices (Level 2), by recording an impairment loss of approximately $13.6 million in the first quarter of 2014. The sale of the 160 Park Avenue Building closed on June 4, 2014, for $10.2 million, exclusive of transaction costs.
In the second quarter of 2014, Columbia Property Trust decided to pursue a near-term sale of the 200 South Orange Building in Orlando, Florida. As a result, management reduced its intended holding period for the building and reevaluated the property's carrying value in the second quarter of 2014. In connection with negotiating the terms of the sale, Columbia Property Trust reduced the carrying value of the 200 South Orange Building to reflect fair value, estimated based on an approximate net contract price of


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$18.4 million (Level 1), by recording an impairment loss of $1.4 million in the second quarter. The sale of the 200 South Orange Building closed on June 30, 2014, for $18.4 million, net of transaction costs.
In the fourth quarter of 2014, Columbia Property Trust identified $500 million to $600 million of properties in its portfolio that fell outside of its targeted investment strategy. In connection with initiating the sales process for these assets, Columbia Property Trust evaluated the recoverability of the carrying values of each of these properties and determined that the carrying value of the Bannockburn Lake III property, a vacant property located in Bannockburn, Illinois, was no longer recoverable due to reducing its expected property holding period to less than one year. As a result, in the fourth quarter of 2014, Columbia Property Trust reduced the carrying value of the Bannockburn Lake III property to $5.0 million, estimated based on current projected discountedproject future cash flows, (Level 3), by recording an impairment loss of $10.1 million.
Theestimated fair value measurements usedvalues may differ from the values that would be realized in this evaluation of nonfinancial assets are considered to be Level 3 valuations within the fair value hierarchy outlined above, as there are significant unobservable inputs. Examples of inputs that were utilized in the fair value calculations include estimated holding periods, discount rates, market capitalization rates, expected lease rental rates, and potential sales prices. The table below represents the detail of the adjustments recognized for 2014 (in thousands) using Level 3 inputs.
Property Net Book Value Impairment Loss Recognized Fair Value
Bannockburn Lake III $15,148
 $(10,148) $5,000
transactions.
Assets Held for Sale
Columbia Property Trust classifies assetsproperties as held for sale according to Accounting Standard Codification 360, Accounting for the Impairment or Disposal of Long-Lived Assets ("ASC 360"). According to ASC 360, assetsproperties, having separately identifiable operations and cash flows, are considered held for sale when the following criteria are met:
Management, having the authority to approve the action, commits to a plan to sell the property.
The property is available for immediate sale in its present condition subject only to terms that are usual and customary for sales of such property.
An active program to locate a buyer and other actions required to complete the plan to sell the property have been initiated.
The property is being actively marketed for sale at a price that is reasonable in relation to its current fair value.
Actions required to complete the plan indicate that it is unlikely that significant changes to the plan will be made or that the plan will be withdrawn.
The sale of the property is probable (i.e. typically subject to a binding sale contract with a non-refundable deposit), and transfer of the property is expected to qualify for recognition as a completed sale, within one year.
At such time that a property is determined to be held for sale, its carrying amount is adjusted to the lower of its depreciated book value or its estimated fair value, less costs to sell, and depreciation is no longer recognized; and assets and liabilities are required


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to be classified as held for sale on the accompanying consolidated balance sheet. As of December 31, 2017, none of Columbia Property Trust's properties met the criteria to be classified as held for sale in the accompanying consolidated balance sheet. As of December 31, 2016, Key Center Tower, and Key Center Marriott, and 5 Houston Center, Energy Center I, and 515 Post Oak were subject to binding sale contracts and met the other aforementioned criteria; thus, these properties are classified as held for sale in the accompanying consolidated balance sheet as of that date. The sale of 5 Houston Center, Energy Center I, and 515 Post Oak closed on January 6, 2017, and the sale of Key Center Tower and Key Center Marriott closed on January 31, 2017 (see Note 3, Real Estate Transactions).


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The major classes of assets and liabilities classified as held for sale as of December 31, 2016, are provided below (in thousands):
December 31, 2016December 31, 2016
Real estate assets held for sale: 
Real estate assets, at cost: 
Real Estate Assets Held for Sale: 
Real Estate Assets, at Cost: 
Land$30,243
$30,243
Buildings and improvements, less accumulated depreciation of $152,246366,126
366,126
Intangible lease assets, less accumulated amortization of $28,54513,365
13,365
Construction in progress2,772
2,772
Total real estate assets held for sale, net$412,506
$412,506
Other assets held for sale: 
Other Assets Held for Sale: 
Tenant receivables, net of allowance for doubtful accounts$1,722
$1,722
Straight-line rent receivable20,221
20,221
Prepaid expenses and other assets3,184
3,184
Intangible lease origination costs, less accumulated amortization of $22,9491,815
1,815
Deferred lease costs, less accumulated amortization of $11,20318,587
18,587
Total other assets held for sale, net$45,529
$45,529
Liabilities held for sale: 
Liabilities Held for Sale: 
Accounts payable, accrued expenses, and accrued capital expenditures$34,812
$34,812
Deferred income4,214
4,214
Intangible lease liabilities, less accumulated amortization of $1,2392,737
2,737
Total liabilities held for sale, net$41,763
$41,763
Allocation of Purchase Price of Acquired Assets
Upon the acquisition of real properties, Columbia Property Trust allocates the purchase price of properties to tangible assets, consisting of land, building, site improvements, and identified intangible assets and liabilities, including the value of in-place leases, based in each case on Columbia Property Trust's estimate of their fair values in accordance with ASC 820 (see Fair Value Measurements section above for additional details). Columbia Property Trust adopted ASU 2017-01, as described in the Recent Accounting Pronouncements section below, effective October 1, 2017. As a result, transaction costs for properties acquired in the fourth quarter have been capitalized and included in the purchase price allocated for properties acquired in the period. Prior to October 1, 2017, transaction costs were expensed and included in acquisition expense on the accompanying statements of operations.
The fair values of the tangible assets of an acquired property (which includes land, building, and site improvements) are determined by valuing the property as if it were vacant, and the "as-if-vacant" value is then allocated to land, building, and site improvements based on management's determination of the relative fair value of these assets. Management determines the as-if-vacant fair value of a property using methods similar to those used by independent appraisers. Factors considered by management in performing these analyses include an estimate of carrying costs during the expected lease-up periods considering current market conditions and costs to execute similar leases, including leasing commissions and other related costs. In estimating carrying costs, management includes real estate taxes, insurance, and other operating expenses during the expected lease-up periods based on current market demand.
Intangible Assets and Liabilities Arising fromFrom In-Place Leases Where Columbia Property Trust isIs the Lessor
As further described below, in-place leases with Columbia Property Trust as the lessor may have values related to: direct costs associated with obtaining a new tenant, opportunity costs associated with lost rentals that are avoided by acquiring an in-place lease, tenant relationships, and effective contractual rental rates that are above or below market rates:


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Direct costs associated with obtaining a new tenant, including commissions, tenant improvements, and other direct costs, are estimated based on management's consideration of current market costs to execute a similar lease. Such direct costs are included in intangible lease origination costs in the accompanying consolidated balance sheets and are amortized to expense over the remaining terms of the respective leases.
The value of opportunity costs associated with lost rentals avoided by acquiring an in-place lease is calculated based on contractual amounts to be paid pursuant to the in-place leases over a market absorption period for a similar lease. Such opportunity costs ("Absorption Period Costs") are included in intangible lease assets in the accompanying consolidated balance sheets and are amortized to expense over the remaining terms of the respective leases.


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The value of tenant relationships is calculated based on expected renewal of a lease or the likelihood of obtaining a particular tenant for other locations. Values associated with tenant relationships are included in intangible lease assets in the accompanying consolidated balance sheets and are amortized to expense over the remaining terms of the respective leases.
The value of effective rental rates of in-place leases that are above or below the market rates of comparable leases is calculated based on the present value (using a discount rate that reflects the risks associated with the leases acquired) of the difference between (i) the contractual amounts to be received pursuant to the in-place leases and (ii) management's estimate of fair market lease rates for the corresponding in-place leases. This calculation includes significantly below- market renewal options for which exercise of the renewal option appears to be reasonably assured. These intangible assets or liabilities are measured over the actual or assumed (in the case of renewal options) remaining lease terms. The capitalized above-market and below-market lease values are recorded as intangible lease assets or liabilities and amortized as an adjustment to rental income over the remaining terms of the respective leases.
As of December 31, 20162017 and 20152016, Columbia Property Trust had the following gross intangible in-place lease assets and liabilities, excluding amounts held for sale (in thousands):
 Intangible Lease Assets 
Intangible
Lease
Origination
Costs
 
Intangible
Below-Market
In-Place Lease
Liabilities
Above-Market
In-Place
Lease Assets
 
Absorption
Period Costs
 
December 31, 2017Gross$2,481
 $149,927
 $100,424
 $46,878
 Intangible Lease Assets 
Intangible
Lease
Origination
Costs
 
Intangible
Below-Market
In-Place Lease
Liabilities
Accumulated Amortization(833) (70,465) (57,465) (19,660)
Above-Market
In-Place
Lease Assets
 
Absorption
Period Costs
 Net$1,648
 $79,462
 $42,959
 $27,218
December 31, 2016Gross$10,589
 $154,582
 $128,857
 $77,939
Gross$10,589
 $154,582
 $128,857
 $77,939
Accumulated Amortization(9,305) (83,254) (74,578) (44,564)Accumulated Amortization(9,305) (83,254) (74,578) (44,564)
Net$1,284
 $71,328
 $54,279
 $33,375
Net$1,284
 $71,328
 $54,279
 $33,375
December 31, 2015Gross$50,463
 $317,841
 $258,672
 $138,663
Accumulated Amortization(37,971) (194,446) (181,482) (81,496)
Net$12,492
 $123,395
 $77,190
 $57,167
During 20162017, 20152016, and 20142015, Columbia Property Trust recognized the following amortization of intangible lease assets and liabilities (in thousands):
Intangible Lease Assets 
Intangible
Lease
Origination
Costs
 
Intangible
Below-Market
In-Place Lease
Liabilities
Intangible Lease Assets 
Intangible
Lease
Origination
Costs
 
Intangible
Below-Market
In-Place Lease
Liabilities
Above-Market
In-Place
Lease Assets
 
Absorption
Period Costs
 
Above-Market
In-Place
Lease Assets
 
Absorption
Period Costs
 
For the years ended December 31,       
For the Years Ended December 31,       
2017$519
 $16,807
 $10,124
 $6,883
2016$2,513
 $28,718
 $17,501
 $12,996
$2,513
 $28,718
 $17,501
 $12,996
2015$4,412
 $45,972
 $28,530
 $19,345
$4,412
 $45,972
 $28,530
 $19,345
2014$5,368
 $36,474
 $33,037
 $15,507


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The remaining net intangible assets and liabilities as of December 31, 20162017, excluding amounts held for sale, will be amortized as follows (in thousands):
Intangible Lease Assets 
Intangible
Lease
Origination
Costs
 
Intangible
Below-Market
In-Place Lease
Liabilities
Intangible Lease Assets 
Intangible
Lease
Origination
Costs
 
Intangible
Below-Market
In-Place Lease
Liabilities
Above-Market
In-Place
Lease Assets
 
Absorption
Period Costs
 
Above-Market
In-Place
Lease Assets
 
Absorption
Period Costs
 
For the years ending December 31,       
2017$439
 $16,377
 $10,739
 $7,492
For the Years Ending December 31,       
201897
 12,885
 9,563
 5,649
$203
 $16,898
 $9,566
 $6,325
201997
 11,298
 8,999
 4,972
203
 14,665
 8,651
 5,968
202097
 9,368
 7,950
 3,836
203
 12,800
 7,770
 4,535
202197
 5,483
 4,008
 2,171
203
 8,112
 3,727
 1,591
2022203
 6,585
 2,708
 1,287
Thereafter457
 15,917
 13,020
 9,255
633
 20,402
 10,537
 7,512
$1,284
 $71,328
 $54,279
 $33,375
$1,648
 $79,462
 $42,959
 $27,218
Weighted-Average Amortization Period4 years
 5 years
 4 years
 6 years
Weighted-average amortization period8 years
 5 years
 5 years
 6 years
Intangible Assets and Liabilities Arising fromFrom In-Place Leases Where Columbia Property Trust isIs the Lessee
In-place ground leases where Columbia Property Trust is the lessee may have positive or negative value associated with effective contractual rental rates that are above or below market rates at the time of execution or assumption. Such values are calculated based on the present value (using a discount rate that reflects the risks associated with the leases acquired) of the difference between (i) the contractual amounts to be paid pursuant to the in-place lease and (ii) management's estimate of fair market lease rates for the corresponding in-place lease at the time of execution or assumption. This calculation includes significantly below-market renewal options for which exercise of the renewal option appears to be reasonably assured. These intangible assets and liabilities are measured over the actual or assumed (in the case of renewal options) remaining lease terms. The capitalized above-market and below-market in-place lease values are recorded as intangible lease liabilities and assets, respectively, and are amortized as an adjustment to property operating cost over the remaining term of the respective leases. Columbia Property Trust had gross below-market lease assets of approximately $140.9 million as of December 31, 20162017 and 2015,2016, net of accumulated amortization of $20.2$22.8 million and $17.7$20.2 million as of December 31, 20162017 and 2015,2016, respectively. Columbia Property Trust recognized amortization expense related to these assets of approximately $2.5 million for 2017, 2016, and 2015, and $2.1 million for 2014.
As of December 31, 2016,2017, the remaining net below-market lease asset will be amortized as follows (in thousands):
For the years ending December 31: 
2017$2,549
For the Years Ending December 31: 
20182,549
$2,549
20192,549
2,549
20202,549
2,549
20212,549
2,549
20222,549
Thereafter107,954
105,405
$120,699
$118,150
Weighted-Average Amortization Period48 years
Weighted-average amortization period47 years
Cash and Cash Equivalents
Columbia Property Trust considers all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents. Cash equivalents may include cash and short-term investments. Short-term investments are stated at cost, which approximates fair value as of December 31, 20162017 and 2015. As of December 31, 2016 Columbia Property Trust's cash balance includes proceeds from real estate dispositions, as described in Note 3, Real Estate Transactions, net of amounts used for debt repayments, as described in Note 5, Line of Credit and Notes Payable.


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Tenant Receivables, netNet
Tenant receivables consist of rental and reimbursement billings due from tenants. Tenant receivables are recorded at the original amount earned, less an allowance for any doubtful accounts, which approximates fair value. Management assesses the realizability of tenant receivables on an ongoing basis and provides for allowances as such balances, or portions thereof, become uncollectible.


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Columbia Property Trust adjusted the allowance for doubtful accounts by recording a provision for doubtful accounts, net of recoveries, in general and administrative expenses in the accompanying consolidated statements of operations of approximately $26,000 and $289,000 for 2017 and $26,000 for 2016, and 2015, respectively.
Straight Line Rent Receivable
Straight line rent receivable reflects the amount of cumulative adjustments necessary to present rental income on a straight-line basis. Columbia Property Trust recognizes revenues on a straight-line basis, ratably over the term of each lease; however, leases often provide for payment terms that differ from the revenue recognized. When the amount of cash received is less than the amount of revenue recognized, typically early in the lease, straight line rent receivable is recorded for the difference. The receivable is depleted during periods later in the lease when the amount of cash paid by the tenant is greater than the amount of revenue recognized.
Prepaid Expenses and Other Assets
Prepaid expenses and other assets primarily include earnest money deposits, escrow accounts held by lenders to pay future real estate taxes, insurance and tenant improvements, notes receivable, nontenant receivables, prepaid taxes, insurance and operating costs, unamortized deferred financing costs related to the line of credit (the "Revolving Credit Facility"), interest rate swaps (when in an asset position), certain corporate assets, hotel inventory, and deferred tax assets. Prepaid expenses and otherare recognized over the period to which the good or service relates. Other assets will be expensed as incurred.are written off when the asset no longer has future value, or when the company is no longer obligated for the corresponding liability.
Deferred Financing Costs
Deferred financing costs include costs incurred to secure debt from third-party lenders. Deferred financing costs, except for costs related to revolving credit facilities,the Revolving Credit Facility, are presented as a direct reduction to the carrying amount of the related debt for all periods presented. Deferred financing costs related to the Revolving Credit Facility are included in prepaid expenses and other assets. Columbia Property Trust recognized amortization of deferred financing costs for the years ended December 31, 2017, 2016, 2015, and 20142015 of approximately $2.8 million, $3.3 million, $4.4 million, and $3.5$4.4 million, respectively, which is included in interest expense in the accompanying consolidated statements of operations.
Deferred Lease Costs
Deferred lease costs include costs incurred to procure leases that are paid to third-parties,third parties or tenants, and incentives that are provided to tenants under the terms of their leases.  These costs are capitalized and amortized on a straight-line basis over the terms of the lease.  Amortization of third-party leasing costs is reflected as amortization expense, and amortization of lease incentives is reflected as an adjustment to rental income. During 2017, 2016, 2015, and 2014,2015, Columbia Property Trust recognized amortization expense for deferred lease costs of $5.2 million, $9.3 million, $8.9 million, and $8.6$8.9 million, respectively. During 2017, 2016, 2015, and 2014,2015, Columbia Property Trust recognized adjustments to rental income for amortization of deferred lease costs of $3.3 million, $3.9 million, $3.7 million, and $3.6$3.7 million, respectively. Upon receiving notification of a tenant's intention to terminate a lease, unamortized deferred lease costs are amortized over the shortened lease period. As of December 31, 2017 and 2016, deferred lease costs includes $68.4 million and $69.0 million, respectively, in unamortized lease incentives for a lease at the 222 East 41st Street Property, which will continue to be amortized to rental income over the approximately 31 year30-year remaining lease term.
Investments in Development Authority Bonds and Obligations Under Capital Leases
In connection with the acquisition of certain real estate assets, Columbia Property Trust has assumed investments in development authority bonds and corresponding obligations under capital leases of land or buildings. The county development authority issued bonds to developers to finance the initial development of these projects, a portion of which was then leased back to the developer under a capital lease. This structure enabled the developer to receive property tax abatements over the concurrent terms of the development authority bonds and capital leases. The remaining property tax abatement benefits transferred to Columbia Property Trust upon assumption of the bonds and corresponding capital leases at acquisition. The development authority bonds and the obligations under the capital leases are both recorded at their net present values, which Columbia Property Trust believes approximates fair value. The related amounts of interest income and expense are recognized as earned in equal amounts and, accordingly, do not impact net income.
Accounts Payable, Accrued Expenses, and Accrued Capital Expenditures
Accounts payable, accrued expenses, and accrued capital expenditures primarily include payables related to property operations, capital projects, and interest rate swaps (when in a liability position). As of December 31, 2017 and 2016, accounts payable, accrued


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Accounts payable, accrued expenses, and accrued capital expenditures
Accounts payable, accrued expenses, and accrued capital expenditures primarily includes payables related to property operations and capital projects. As of December 31, 2016, accounts payable, accrued expenses, and accrued capital expenditures includes approximately$54.7 million and $69.0 million in lease incentives related to recently commenceda lease at the 222 East 41st Street Property.
Line of Credit and Notes Payable
Certain mortgage notes included in line of credit and notes payable in the accompanying consolidated balance sheets were assumed upon the acquisition of real properties. When debt is assumed, Columbia Property Trust records the loan at fair value. The fair value adjustment is amortized to interest expense over the term of the loan using the effective interest method.
As described in the Deferred Financing Costs section above, line of credit and notes payable areis presented on the accompanying consolidated balance sheet net of deferred financing costs related to term loans and notes payable of $3.1$3.0 million and $4.5$3.1 million as of December 31, 20162017 and December 31, 2015,2016, respectively.
Bonds Payable
In August 2016, Columbia Property Trust issued $350 million of its ten-year10-year unsecured 3.650% senior notes at 99.626% of their face value (the "2026 Bonds Payable"). In March 2015, Columbia Property Trust issued $350.0 million of its ten-year10-year unsecured 4.150% senior notes at 99.859% of their face value (the "2025 Bonds Payable"). The discount on the 2026 Bonds Payable and the 2025 Bonds Payable is amortized to interest expense over the term of the bonds using the effective-interest method.
As described in the Deferred Financing Costs section above, bonds payable are presented on the accompanying consolidated balance sheet net of deferred financing costs related to bonds payable of $5.4$4.8 million and $3.7$5.4 million as of December 31, 20162017 and December 31, 2015,2016, respectively.
Common Stock Repurchase Program
Columbia Property Trust's board of directors has authorized the repurchase of up to an aggregate of $200 millionrepurchases of its common stock, par value $0.01 through September 4, 2017 (the "Stock Repurchase Program")per share, subject to certain limitations, as described in Note 8, Equity. Columbia Property Trust expects to acquire shares primarily through open market transactions, subject to market conditions and other factors. As of December 31, 2016, $130.92017, $194.8 million remains available for repurchases under the Stock Repurchase Program.current stock repurchase program. Common stock repurchases are charged against equity as incurred, and the repurchased shares are retired. See Note 8, Equity, for additional details.
Preferred Stock
Columbia Property Trust is authorized to issue up to 100.0 million shares of one or more classes or series of preferred stock with a par value of $0.01 per share. Columbia Property Trust's board of directors may determine the relative rights, preferences, and privileges of each class or series of preferred stock issued, which may be more beneficial than the rights, preferences, and privileges attributable to Columbia Property Trust's common stock. To date, Columbia Property Trust has not issued any shares of preferred stock.
Common Stock
The par value of Columbia Property Trust's issued and outstanding shares of common stock is classified as common stock, with the remainder allocated to additional paid-in capital.
Distributions
To maintain its status as a REIT, Columbia Property Trust is required by the Internal Revenue Code of 1986, as amended (the "Code"), to make distributions to stockholders each taxable year equal to at least 90% of its REIT taxable income, computed without regard to the dividends-paid deduction and by excluding net capital gains attributable to stockholders ("REIT taxable income"). Distributions to the stockholders are determined by the board of directors of Columbia Property Trust and are dependent upon a number of factors relating to Columbia Property Trust, including funds available for payment of distributions, financial condition, the timing of property acquisitions, capital expenditure requirements, and annual distribution requirements in order to maintain Columbia Property Trust's status as a REIT under the Code.
Interest Rate Swap Agreements
Columbia Property Trust enters into interest rate swap contracts to mitigate its interest rate risk on the related financial instruments. Columbia Property Trust does not enter into derivative or interest rate transactions for speculative purposes; however, certain of


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its derivatives may not qualify for hedge accounting treatment. Columbia Property Trust records the fair value of its interest rate swaps on its consolidated balance sheet either as prepaid expenses and other assets or as accounts payable, accrued expenses, and accrued capital expenditures. Changes in the fair value of the effective portion of interest rate swaps that are designated as cash


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flow hedges are recorded as other comprehensive income, while changes in the fair value of the ineffective portion of a hedge, if any, is recognized currently in earnings. Changes in the fair value of interest rate swaps that do not qualify for hedge accounting treatment are recorded as gain (loss)or loss on interest rate swaps. Amounts received or paid under interest rate swap agreements are recorded as interest expense for contracts that qualify for hedge accounting treatment and as loss on interest rate swaps for contracts that do not qualify for hedge accounting treatment.
The following tables provide additional information related to Columbia Property Trust's interest rate swaps as of December 31, 20162017 and 20152016 (in thousands):
   Estimated Fair Value as of
 December 31,   
Estimated Fair Value as of
December 31,
Instrument Type Balance Sheet Classification 2016 2015 Balance Sheet Classification 2017 2016
Derivatives designated as hedging instruments:    
Derivatives Designated as Hedging Instruments:    
Interest rate contracts Accounts payable $(882) $(2,436) Prepaid expenses and other assets $903
 $
Interest rate contracts Accounts payable $
 $(882)
Columbia Property Trust applied the provisions of ASC 820 in recording its interest rate swaps at fair value. The fair values of the interest rate swaps, classified under Level 2, were determined using a third-party proprietary model that is based on prevailing market data for contracts with matching durations, current and anticipated London Interbank Offered Rate ("LIBOR") information, and reasonable estimates about relevant future market conditions. Columbia Property Trust has determined that the fair value, as determined by the third party, is reasonable.
Years ended December 31,Years Ended December 31,
2016 2015 20142017 2016 2015
Market value adjustment to interest rate swaps designated as hedging instruments and included in other comprehensive income$1,553
 $(1,570) $1,339
$1,786
 $1,553
 $(1,570)
Loss on interest rate swap recognized through earnings$
 $(1,110) $(371)$
 $
 $(1,110)
In July 2015, Columbia Property Trust paid $1.1 million to settle the interest rate swap on a $450 million term loan, which is reflected in earnings. See Note 5, Line of Credit and Notes Payable, for additional details. During the periods presented, there was no other hedge ineffectiveness required to be recognized into earnings on the interest rate swaps that qualified for hedge accounting treatment.
Revenue Recognition
All leases on real estate assets held by Columbia Property Trust are classified as operating leases, and the related base rental income is generally recognized on a straight-line basis over the terms of the respective leases. Tenant reimbursements are recognized as revenue in the period that the related operating cost is incurred and are billed to tenants pursuant to the terms of the underlying leases. Rental income and tenant reimbursements collected in advance are recorded as deferred income in the accompanying consolidated balance sheets. Management fees earned by Columbia Property Trust for services provided to certain of its unconsolidated joint ventures are recorded as asset and property management fee income during the period in which such services are provided. Lease termination fees are recorded as other property income and recognized on a straight-line basis from when Columbia Property Trust receives notification of termination through the date the tenant has lost the right to lease the space and Columbia Property Trust has satisfied all obligations under the related lease or lease termination agreement.
In conjunction with certain acquisitions, Columbia Property Trust has entered into master lease agreements with various sellers, whereby the sellers are obligated to pay rent pertaining to certain nonrevenue-producing spaces either at the time of, or subsequent to, the property acquisition. These master leases were established at the time of acquisition to mitigate the potential negative effects of lost rental revenues and expense reimbursement income. Columbia Property Trust records payments received under master lease agreements as a reduction of the basis of the underlying property rather than rental income. There were no proceeds received from master leases during 20162017, 20152016, or 20142015.
Prior to disposition on January 31, 2017, Columbia Property Trust ownsowned the Key Center Marriott, a full-service hotel, through a taxable REIT subsidiary. Revenues derived from the operations of the hotel include, but are not limited to, revenues from rental of rooms, food and beverage sales, telephone usage, and other service revenues. Revenue was recognized when rooms arewere occupied, when services have been performed, and when products arewere delivered. The Key Center Marriott was sold on January 31, 2017.


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Income Taxes
Columbia Property Trust has elected to be taxed as a REIT under the Code, and has operated as such beginning with its taxable year ended December 31, 2003. To qualify as a REIT, Columbia Property Trust must meet certain organizational and operational requirements, including a requirement to distribute at least 90% of its REIT taxable income, as defined by the Code, to its stockholders. As a REIT, Columbia Property Trust generally is not subject to income tax on income it distributes to stockholders. Columbia Property Trust's stockholder distributions typically exceed its taxable income due to the inclusion of noncash expenses, such as depreciation, in taxable income. As a result, Columbia Property Trust typically does not incur federal income taxes other than as described in the following paragraph. Columbia Property Trust is, however, subject to certain state and local taxes related to the operations of properties in certain locations, which have been provided for in the accompanying consolidated financial statements.
Columbia Property Trust TRS, LLC, Columbia KCP TRS, LLC, and Columbia Energy TRS, LLC (collectively, the "TRS Entities") are wholly owned subsidiaries of Columbia Property Trust and are organized as Delaware limited liability companies, and operate,companies. The TRS Entities, among other things, office propertiesprovide tenant services that Columbia Property Trust, does not intend to hold long term andas a full-service hotel.REIT, cannot otherwise provide. Columbia Property Trust has elected to treat the TRS Entities as taxable REIT subsidiaries. Columbia Property Trust may perform certain additional, noncustomary services for tenants of its buildings through the TRS Entities; however, any earnings related to such services are subject to federal and state income taxes. In addition, for Columbia Property Trust to continue to qualify as a REIT, Columbia Property Trust must limit its investments in taxable REIT subsidiaries to 25% of the value of the total assets. The TRS Entities' deferred tax assets and liabilities represent temporary differences between the financial reporting basis and the tax basis of assets and liabilities based on the enacted rates expected to be in effect when the temporary differences reverse. If applicable, Columbia Property Trust records interest and penalties related to uncertain tax positions as general and administrative expense in the accompanying consolidated statements of operations.
Segment Information
As of December 31, 2016,2017, Columbia Property Trust's reportable segments are determined based on the geographic markets in which it has significant investments. Columbia Property Trust considers geographic location when evaluating its portfolio composition, and in assessing the ongoing operations and performance of its properties (see Note 15,14, Segment Information).
Reclassification
Certain prior period amounts may be reclassified to conform withto the current-period financial statement presentation, including deferred financing costs (as described above)presentation. Within revenues on the accompanying consolidated statements of operations, management fees earned from unconsolidated joint ventures have been reclassified from other property income to a dedicated line item, asset and discontinued operations (see Note 12, Discontinued Operations).property management fee income, for all periods presented.
Recent Accounting Pronouncements
In JanuaryAugust 2017, the Financial Accounting Standards Board (the "FASB") issued Accounting Standard Update 2017-12, Targeted Improvements to Accounting for Hedging Activities ("ASU 2017-12"). ASU 2017-12 aligns reporting requirements for hedging relationships with risk management activities and simplifies the application of hedge accounting. ASU 2017-12 eliminates the concept of recognizing periodic hedge ineffectiveness for cash flow hedges and allows for ongoing qualitative, rather than quantitative, testing of hedge effectiveness. ASU 2017-12 will be effective for Columbia Property Trust on January 1, 2019, with early adoption permitted. Columbia Property Trust elected to early adopt ASU 2017-12 effective December 1, 2017. The adoption of ASU 2017-12 resulted in a simplified process to determine the ongoing effectiveness of its cash flow hedge with no material impact on its consolidated financial statements or other disclosures.
In February 2017, the FASB issued Accounting Standard Update 2017-05, Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Non-Financial Assets ("ASU 2017-05"), which will apply to the partial sale of non-financial assets, including real estate assets, to unconsolidated joint ventures. ASU 2017-05 will require Columbia Property Trust to measure its residual joint venture interest in the properties transferred to unconsolidated joint ventures at fair value as of the transaction date by recognizing a gain or loss on 100% of the asset transferred (i.e. to fully step-up the basis of the residual investment in the joint venture). Columbia Property Trust will adopt the new rule effective January 1, 2018 on a modified retrospective basis by recording a cumulative-effect adjustment to equity equal to the original gain or loss as of the respective transaction dates, adjusted to reflect the impact of depreciating the additional step-ups through January 1, 2018. The adoption of this standard will result in an increase to investment in unconsolidated joint ventures and equity by $357.8 million for the investments in the Market Square, 333 Market Street, and University Circle properties.


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In January 2017, the FASB issued Accounting Standards Update 2017-01, Clarifying the Definition of a Business, ("ASU 2017-01"), which provides a more narrow definition of a business to be used in determining the accounting treatment of an acquisition, and, asacquisitions. As a result, under the new standard, many acquisitions that previously qualifiedclassified as business combinations will be treated as asset acquisitions. For asset acquisitions, acquisitionunlike business combinations, transaction costs may be capitalized, and purchase price may be allocated on a relative fair valuefair-value basis. ASU 2017-01 is effective prospectively for Columbia Property Trust on January 1, 2018, withelected to early adoption permitted. For real estate acquisitions completed subsequent to its adoption, Columbia Property Trust anticipates thatadopt ASU 2017-01 willas of October 1, 2017. As a result, in simplified purchase price allocationstransaction costs of $2.2 million were capitalized during the fourth quarter related to the acquisitions of 245-249 West 17th Street, 218 West 18th Street, and the capitalization of associated acquisition costs.149 Madison Avenue. See Note 3,
In August 2016, the FASB issued Accounting Standards Update 2016-15Real Estate Transactions, Classification of Cash Receipts and Payments ("ASU 2016-15"), which addresses the statement of cash flow classification requirements for several types of receipts and payments. ASU 2016-15 provides that, among other things, (i) debt prepayments and extinguishment costs should be classified as financing activities, (ii) insurance proceeds should be classified in accordance with the nature of the respective claims, and (iii) distributions from equity method investees should be classified based on the underlying nature of the investee activity according to specific guidelines. Effective December 31, 2016, Columbia Property Trust adopted ASU 2016-15 prospectively. The adoption of ASU 2016-15 does not result in any material changes to Columbia Property Trust's accounting policies or financial statements.more information about these acquisitions.
In February 2016, the FASB issued Accounting Standards Update 2016-02, Leases ("ASU 2016-02"), which amends the existing standards for lease accounting by requiring lessees to recognize most leases on their balance sheets and by making targeted changes to lessor accounting and reporting. The new standard will require lessees to record a right-of-use asset and a lease liability for all leases with a term of greater than 12 months, and classify such leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase of the leased asset by the lessee.lessee, or not. This classification will determine whether the lease expense is recognized based on an effective interest method (finance leases), or on a straight-line basis over the term of the lease (operating leases). Leases with a term of 12 months or less will be accounted for using an approach that is similar to existing guidance for


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operating leases today. The new standard requires lessors to account for leases, using an approach that is substantially equivalent to existing guidance as applies to sales-type leases, direct financing leases, and operating leases. ASU 2016-02 supersedes previous leasing standards. ASU 2016-02 iswill be effective for Columbia Property Trust on January 1, 2019 with early adoption permitted.and supersedes previous leasing standards. Columbia Property Trust is inprimarily a lessor and is monitoring additional clarification regarding the processtreatment of inventoryingcertain features of its leases to evaluate the related impact on its financial statements and operating results.lease agreements that might be classified as non-lease components. Columbia Property Trust anticipates usingis also a lessee, primarily on ground leases, and it is evaluating the modified-retrospective approachimpact of implementation at the effective date.ASU 2016-02 on accounting for such leases.
In May 2014, the FASB issued Accounting Standards Update 2014-09,Revenue from Contracts with Customers ("ASU 2014-09"), which establishes a comprehensive model to account for revenuerevenues arising from contracts with customers. ASU 2014-09 applies to all contracts with customers, except those that are within the scope of other topics in the FASB's Accounting Standards Codification, includingsuch as real estate leases. ASU 2014-09 will require companies to perform a five-step analysis of transactions to determine when and how revenue is recognized. ASU 2014-09 will be effective retrospectively for Columbia Property Trust beginning on January 1, 2018,expects the new standard to apply primarily to fees earned from managing properties owned by its unconsolidated joint ventures and early adoption is permitted beginning January 1, 2017. Columbia Property Trust continues to evaluatecertain parking agreements. Revenues for such services represented $6.7 million, $3.6 million, and $1.8 million, or 2.3%, 0.8%, and 0.3% of total revenues, for the impact that ASU 2014-09 will have on its financial statementsyears ended December 31, 2017, 2016, and disclosures; however, since Columbia Property Trust primarily derives revenue2015, respectively. Revenues derived from real estate leases, which are excluded from ASU 2014-09.2014-09 represented $281.0 million, $447.3 million, and $539.9 million, or 97.2%, 94.5%, and 95.4% of total revenues for the years ended December 31, 2017, 2016, and 2015, respectively. Given the structure of the asset and property management agreements currently in place with unconsolidated joint ventures and the parking agreements currently in place with existing tenants, Columbia Property Trust is in the process of evaluating the criteria ofdoes not expect ASU 2014-09 and determining whatto materially impact the new standard will have on revenues generated from activities other than leasing, such as property sales and asset management fees.timing or amount of revenue recognition; however, Columbia Property Trust anticipates applyingwill be required to provide more extensive disclosures about its revenue streams and contracts with customers. ASU 2014-09 was effective for Columbia Property Trust on January 1, 2018. Columbia Property Trust will use the modified retrospective approach of adoption, which will result in the recognition of a cumulative effect method at the effective date.adjustment to equity, with no retrospective adjustments to prior periods.


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3.Real Estate Transactions
Acquisitions
Columbia Property Trust did not acquire any properties during 2016. During 20152017, 2016, and 2014,2015, Columbia Property Trust acquired the following properties (in thousands).and partial interests in properties:
  315 Park Avenue
South Building
 1881 Campus Commons Building 116 Huntington
Avenue Building
 229 West 43rd Street Building 221 Main Street Building 650 California Street Building
Location New York, NY
 Reston, VA
 Boston, MA
 New York, NY
 San Francisco, CA
 San Francisco, CA
Date Acquired January 7, 2015
 January 7, 2015
 January 8, 2015
 August 4, 2015
 April 22, 2014
 September 9, 2014
Purchase price:            
Land $119,633
 $7,179
 $
 $207,233
 $60,509
 $75,384
Building and improvements 232,598
 49,273
 108,383
 265,952
 161,853
 221,135
Intangible lease assets 16,912
 4,643
 7,907
 27,039
 12,776
 19,306
Intangible below market ground lease assets 
 
 30,244
 
 
 
Intangible lease origination costs 4,148
 1,603
 2,669
 10,059
 3,475
 4,290
Intangible below market lease liability (7,487) (97) (1,878) 
 (10,323) (9,908)
Total purchase price $365,804
 $62,601
 $147,325
 $510,283
 $228,290
 $310,207
Property Location Date Percent Acquired 
Purchase Price
(in thousands)
(1)
2017         
149 Madison Avenue New York, NY November 28, 2017 100.0% $87,700
 
1800 M Street Washington, D.C. October 11, 2017 55.0% $231,550
(2) 
245-249 West 17th Street & 218 West 18th Street New York, NY October 11, 2017 100.0% $514,100
 
114 Fifth Avenue New York, NY July 6, 2017 49.5% $108,900
(2) 
2015         
229 West 43rd Street New York NY August 4, 2015 100.0% $516,000
 
116 Huntington Avenue Boston, MA January 8, 2015 100.0% $152,000
 
315 Park Avenue South & 1881 Campus Commons New York, NY & Reston, VA January 7, 2015 100.0% $436,000
 
(1)
Exclusive of transaction costs and price adjustments. See purchase price allocation table below for a breakout of the net purchase price for wholly-owned properties.
(2)
Purchase price is for our partial interests in the properties. These properties are owned through unconsolidated joint ventures. 
149 Madison Avenue
Note 2, Summary149 Madison Avenue is a 12-story, 127,000-square-foot office building, which was vacant at the time of Significant Accounting Policiesacquisition. Columbia Property Trust acquired 149 Madison Avenue subject to a ground lease which expired in January 2018. Columbia Property Trust plans to redevelop this property. For the period from November 28, 2017 to December 31, 2017, Columbia Property Trust recognized $10,300 of revenues and net income of $9,200 from 149 Madison Avenue.
1800 M Street Joint Venture
Columbia Property Trust entered a new joint venture partnership with Allianz Real Estate of America LLC ("Allianz"), provideswhich simultaneously acquired 1800 M Street, a discussion10-story, 581,000-square-foot office building in Washington, D.C., that is 94% leased, for a total of $421.0 million (the "1800 M Street Joint Venture"). Columbia Property Trust owns a 55% interest in the 1800 M Street Joint Venture, and Allianz owns the remaining 45%.
245-249 West 17th Street & 218 West 18th Street
245-249 West 17th Street is made up of two interconnected 12- and six-story towers, totaling 281,000 square feet of office and retail space and 218 West 18th Street is a 12-story, 166,000-square-foot office building. As of the estimated useful lifeacquisition date, 245-249 West 17th Street was 100% leased to four tenants, including Twitter, Inc. (76%) and Room & Board, Inc. (21%); and, as of the acquisition date, 218 West 18th Street was 100% leased to seven tenants, including Red Bull North America, Inc. (25%), Company 3 (18%), SY Partners (16%), and SAE (16%). For the period from October 11, 2017 to December 31, 2017, Columbia Property Trust recognized revenues of $5.9 million and a net income of $1.8 million from 245-249 West 17th Street, and revenues of $3.0 million and net income of $0.8 million from 218 West 18th Street.
114 Fifth Avenue Joint Venture
Columbia Property Trust acquired a 49.5% equity interest in a joint venture that owns the 114 Fifth Avenue property from Allianz (the "114 Fifth Avenue Joint Venture"). 114 Fifth Avenue is a 19-story, 352,000-square-foot building located in Manhattan’s Flatiron District that is 100% leased, and is unencumbered by debt. The 114 Fifth Avenue Joint Venture is owned by Columbia Property Trust (49.5%), Allianz (49.5%), and L&L Holding Company (1.0%). L&L Holding Company is the general partner and will continue to perform asset and property management services for each asset class.the property.
Portfolio Acquisition - 315 Park Avenue South Building & 1881 Campus Commons Building229 West 43rd Street
On January 7,August 4, 2015, Columbia Property Trust acquired the 481,000-square-foot office portion of the 229 West 43rd Street, a portfolio16-story, 732,000-square-foot building located in the Times Square sub-market of two assets, which included 315 Park Avenue South, a 327,000-square-foot office buildingManhattan in New York, New York, (the "315 Park Avenue South Building"), and 1881 Campus Commons, a 244,000-square-foot office building in Reston, Virginia (the "1881 Campus Commons Building"). This portfolio was acquired for $436.0$516.0 million, exclusive of transaction costs and purchase price adjustments, using proceeds from the issuance of the 2025 Bonds Payable, proceeds from the Revolving Credit Facility, and cash on hand.
adjustments. As of the acquisition date, the 315 Park Avenue South229 West 43rd Street Building was 94.9% leased to nine tenants, including Credit Suisse (74%). For the period from January 7, 2015 to December 31, 2015, Columbia Property Trust recognized revenues of $25.1 million and a net loss of $6.6 million from the 315 Park Avenue South Building. The net loss includes acquisition expenses of $1.2 million.
As of the acquisition date, the 1881 Campus Commons Building was 78.0% leased to 15 tenants, including SOS International (15%) and Siemens (12%). For the period from January 7, 2015 to December 31, 2015, Columbia Property Trust recognized


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was 98.0% leased to nine tenants, including Yahoo! (40%), Snapchat (13%), Collective, Inc. (12%), and MongoDB (10%). For the period from August 4, 2015 to December 31, 2015, Columbia Property Trust recognized revenues of $5.8$15.3 million and a net lossincome of $1.3$2.2 million from the 1881 Campus Commons Building.229 West 43rd Street. The net lossincome includes acquisition expenses of $0.5$1.7 million. Columbia Property Trust sold 1881 Campus Commons on December 10, 2015, as described in the Dispositions section below.
116 Huntington Avenue Building
On January 8, 2015, Columbia Property Trust acquired 116 Huntington Avenue, a 271,000-square-foot office building in Boston, Massachusetts, (the "116 Huntington Avenue Building"), for $152.0 million, inclusive of capital credits, using proceeds from the issuance of the 2025 Bonds Payable, proceeds from the Revolving Credit Facility, and cash on hand.credits. As of the acquisition date, the 116 Huntington Avenue Building was 78.0% leased to 17 tenants, including American Tower (21%), GE Healthcare (13%), and Brigham and Women's (12%). For the period from January 8, 2015 to December 31, 2015, Columbia Property Trust recognized revenues of $11.3 million and a net loss of $0.7 million from the 116 Huntington Avenue Building.Avenue. The net loss includes acquisition expenses of $0.3 million.
229 West 43rd Street315 Park Avenue South Building & 1881 Campus Commons Building
On August 4,January 7, 2015, Columbia Property Trust acquired the 481,000-square-foota portfolio of two assets, which included 315 Park Avenue South, a 327,000-square-foot office portion of the 229 West 43rd Street building a 16-story, 732,000-square-foot building located in the Times Square sub-market of Manhattan in New York, New York, (the "229 West 43rd Street Building"),and 1881 Campus Commons, a 244,000-square-foot office building in Reston, Virginia. This portfolio was acquired for $516.0$436.0 million, exclusive of transaction costs and purchase price adjustments. This acquisition was funded with a $300 million bridge loan (the "$300 Million Bridge Loan") and borrowings on the Revolving Credit Facility, as described in Note 5, Line of Credit and Notes Payable.
As of the acquisition date, the 229 West 43rd Street Building315 Park Avenue South was 98.0%94.9% leased to nine tenants, including Yahoo! (40%), Snapchat (13%), Collective, Inc. (12%), and MongoDB (10%Credit Suisse (74%). For the period from August 4,January 7, 2015 to December 31, 2015, Columbia Property Trust recognized revenues of $15.3 million and net income of $2.2 million from the 229 West 43rd Street Building. The net income includes acquisition expenses of $1.7 million.
221 Main Street Building
On April 22, 2014, Columbia Property Trust acquired the 221 Main Street Building, a 378,000-square-foot office building in San Francisco, California, for $228.8 million, exclusive of closing costs (the "221 Main Street Building"). The acquisition was funded with a $73.0 million assumed mortgage note, $116.0 million of borrowings on the Revolving Credit Facility, and cash on hand. As of the acquisition date, the 221 Main Street Building was 82.8% leased to 40 tenants, including DocuSign, Inc. (16%). Columbia Property Trust recognized revenues of $12.7$25.1 million and a net loss of $10.9$6.6 million from the 221 Main Street Building acquisition for the period from April 22, 2014 to December 31, 2014.315 Park Avenue South. The net loss includes acquisition expenses of $6.1$1.2 million.
650 California Street Building
On September 9, 2014, Columbia Property Trust acquired the 650 California Street Building, a 477,000-square-foot office building in San Francisco, California, for $310.2 million, exclusive of transaction costs (the "650 California Street Building"). The acquisition was funded with a $130.0 million assumed mortgage note, $118.0 million of borrowings on the Revolving Credit Facility, and cash on hand. As of the acquisition date, the 650 California Street Building1881 Campus Commons was 88.1%78.0% leased to 1815 tenants, including Littler Mendelson (24%SOS International (15%), Credit Suisse (13%), and Goodby Silverstein (11%Siemens (12%). For the period from January 7, 2015 to December 31, 2015, Columbia Property Trust recognized revenues of $8.0$5.8 million and a net loss of $9.7$1.3 million from the 650 California Street Building acquisition for the period from September 9, 2014 to December 31, 2014.1881 Campus Commons. The net loss includes acquisition expenses of $8.0$0.5 million. Columbia Property Trust sold 1881 Campus Commons on December 10, 2015, as described in the Dispositions section below.
Purchase Price Allocations for Consolidated Property Acquisitions:
  149 Madison Avenue 245-249 West 17th Street 218 West 18th Street 229 West 43rd Street 116 Huntington
Avenue
 315 Park Avenue
South
 1881 Campus Commons
Location New York, NY
 New York, NY
 New York, NY
 New York, NY
 Boston, MA
 New York, NY
 Reston, VA
Date Acquired November 28, 2017
 October 11, 2017
 October 11, 2017
 August 4, 2015
 January 8, 2015
 January 7, 2015
 January 7, 2015
Purchase Price:              
Land $59,112
 $113,149
 $43,836
 $207,233
 
 $119,633
 $7,179
Building and improve-ments 28,989
 194,109
 126,957
 265,952
 108,383
 232,598
 49,273
Intangible lease assets 
 27,408
 12,120
 27,039
 7,907
 16,912
 4,643
Intangible below market ground lease assets 
 
 
 
 30,244
 
 
Intangible lease origin- ation costs 
 13,062
 4,168
 10,059
 2,669
 4,148
 1,603
Intangible below market lease liability 
 (7,131) (11,757) 
 (1,878) (7,487) (97)
Total purchase price $88,101
 $340,597
 $175,324
 $510,283
 147,325
 $365,804
 $62,601
Note 2, Summary of Significant Accounting Policies, providesa discussion of the estimated useful life for each asset class.
Pro Forma Financial InformationInformation:
The following unaudited pro forma statements of operations presented for 20152017, 2016, and 2014,2015, have been prepared for Columbia Property Trust to give effect to the acquisitions of the 315 Park245-249 West 17th Street, 218 West 18th Street, and 149 Madison Avenue South Building, the 1881 Campus Commons Building, the 116 Huntington Avenue Building, and the 229 West 43rd Street Building as if the acquisitions had occurred on January 1, 2014;2016; and the 221 Main315 Park Avenue South, 1881 Campus Commons, 116 Huntington Avenue,


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and 229 West 43rd Street Building and the 650 California Street Building as if the acquisitions had occurred on January 1, 2013. Other than the 1881 Campus Commons Building, which was sold in December 2015, these properties were owned for the entirety of 2016.2014. The following unaudited pro forma financial results for Columbia Property Trust have been prepared for informational purposes only and are not necessarily indicative of future results or of actual results that would have been achieved had these acquisitions been consummated as of January 1, 20142016 and January 1, 20132014 (in thousands).:
 2015 2014
Revenues$582,699
 $605,494
Net income (loss)$46,363
 $63,139
Net income (loss) per share  basic
$0.37
 $0.50
Net income (loss) per share  diluted
$0.37
 $0.50


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 2017 2016 2015
Revenues$319,064
 $511,306
 $582,699
Net income$183,318
 $93,537
 $46,363
Net income per share  basic
$1.51
 $0.76
 $0.37
Net income per share  diluted
$1.51
 $0.76
 $0.37
Dispositions
As a result of adopting Accounting Standards Update 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components on an Entity ("ASU 2014-08"), effective April 1, 2014, for all periods presented in the accompanying consolidated statements of operations, the revenues and expenses associated with the 2016, 2015 and some of the 2014 property sales described below are included in continuing operations, while the revenues and expenses associated with sales executed before April 1, 2014, are classified as discontinued operations. During 2017, 2016, 2015, and 2014, Columbia Property Trust closed on the following transactions:
Key Center Tower & Key Center Marriott
On January 31, 2017,2015, Columbia Property Trust sold the Key Center Towerfollowing properties and the Key Center Marriottpartial interest in Cleveland, Ohio to the Millennia Companies for $267.5 million, exclusive of purchase price adjustments. At closing, Columbia Property Trust received $254.5 million of gross proceeds and a $13.0 million, 10-year note receivable from the principal of the Millennia Companies. Interest accrues on the note receivable for the first seven years, and becomes due and payable beginning in the 8th year. Columbia Property Trust has applied the installment method to account for this sale and, as a result, deferred $13.0 million of the gain on sale.properties:
Houston Properties
On January 6, 2017, Columbia Property Trust sold the 5 Houston Center Building, the Houston Energy Center I Building, and the 515 Post Oak Building (collectively, the "Houston Properties"), for $272.0 million, before purchase price adjustments, and recognized a gain of approximately $63.7 million on the sale in the first quarter of 2017.
Property Location Date % Sold 
Sales Price(1) 
(in thousands)
 
Gain (Loss) on Sale (rounded,
in thousands)
2017             
University Circle & 333 Market Street(2)
 San Francisco, CA July 6, 2017 22.5%
(3) 
 $234,000
(2)(3) 
 $102,400
 
Key Center Tower & Marriott(4)
 Cleveland, OH January 31, 2017 100.0%  $267,500
  $9,500
 
Houston Properties(5)
 Houston, TX January 6, 2017 100.0%  $272,000
  $63,700
 
2016             
SanTan Corporate Center Phoenix, AZ December 15, 2016 100.0%  $58,500
  $9,800
 
Sterling Commerce Dallas, TX November 30, 2016 100.0%  $51,000
  $12,500
 
9127 South Jamaica Street Denver, CO October 12, 2016 100.0%  $19,500
  $
(6) 
80 Park Plaza Newark, NJ September 30, 2016 100.0%  $174,500
  $21,600
 
9189, 9191 & 9193 South Jamaica Street Denver, CO September 22, 2016 100.0%  $122,000
  $27,200
 
800 North Frederick Suburban, MD July 8, 2016 100.0%  $48,000
  $2,100
 
100 East Pratt(7)
 Baltimore, MD March 31, 2016 100.0%  $187,000
  $(300) 
2015             
1881 Campus Commons(8)
 Reston, VA December 10, 2015 100.0%  $65,000
  $500
 
Market Square(9)
 Washington, D.C. October 28, 2015 49.0%  $291,600
(9) 
 $3,100
 
11 Property Sale(10)
 
Various(10)
 July 1, 2015 100.0%  $433,300
  $20,200
 
SanTan Corporate Center
On December 15, 2016, Columbia Property Trust sold the SanTan Corporate Center in Phoenix, Arizona, for $58.5 million, before purchase price adjustments, and recognized a gain of approximately $9.8 million on the sale in the fourth quarter of 2016.
Sterling Commerce Property
On November 30, 2016, Columbia Property Trust sold the Sterling Commerce Property in Irving, Texas, for $51.0 million, before purchase price adjustments, and recognized a gain of approximately $12.5 million on the sale in the fourth quarter of 2016.
9127 South Jamaica Street Building
On October 12, 2016, Columbia Property Trust sold the 9127 South Jamaica Street Building, one of the four buildings at the South Jamaica Street Property in Denver, Colorado, for $19.5 million, before purchase price adjustments, and recognized a de minimis loss on the sale in the fourth quarter of 2016.
80 Park Plaza Property
On September 30, 2016, Columbia Property Trust sold the 80 Park Plaza Property in Newark, New Jersey, for $174.5 million, before purchase price adjustments, and recognized a gain of approximately $21.6 million on the sale in the third quarter of 2016.
South Jamaica Street Property
On September 22, 2016, Columbia Property Trust sold three of the four buildings at the South Jamaica Street Property in Denver, Colorado, for $122.0 million, before purchase price adjustments, and recognized a gain of approximately $27.2 million on the sale in the third quarter of 2016.
800 North Frederick Property
On July 8, 2016, Columbia Property Trust sold the 800 North Frederick Property in suburban Maryland for $48.0 million, before purchase price adjustments, and recognized a gain of approximately $2.1 million on the sale in the third quarter of 2016.
(1)
Exclusive of transaction costs and price adjustments.
(2)
Sales price is for the partial interests in the properties that were sold. Columbia Property Trust contributed the 333 Market Street building and the University Circle property to joint ventures, and simultaneously sold a 22.5% interest in those joint ventures for $234.0 million to Allianz, an unrelated third party (collectively, the "San Francisco Joint Ventures").
(3)
On February 1, 2018, Allianz acquired another 22.5% interest in each of the San Francisco Joint Ventures at an aggregate price of $235.3 million, thereby reducing Columbia Property Trust's equity interest in each joint venture to 55.0%. These proceeds were used to reduce the balance on the $300 Million Bridge Loan and the Revolving Credit Facility, as described in Note 5, Line of Credit and Notes Payable.
(4)
Key Center Tower & Marriott were sold in one transaction for $254.5 million of gross proceeds and a $13.0 million, 10-year accruing note receivable from the principal of the buyer. As a result, Columbia Property Trust has applied the installment method to account for this transaction, and deferred $13.0 million of the total $22.5 million gain on sale. The Key Center Tower and Key Center Marriott generated net income of $14.5 million and $12.1 million for the years ended December 31, 2016 and 2015, respectively; and a net loss of $1.9 million for the first 31 days of 2017, excluding the gain on sale.
(5)
5 Houston Center, Energy Center I, and 515 Post Oak were sold in one transaction. These properties generated net income of $11.1 million and $12.9 million for the years ended December 31, 2016 and 2015, respectively; and a net loss of $14.9 thousand for the first six days of 2017, excluding the gain on sale.
(6)
Columbia Property Trust recorded a de minimus loss on the sale of 9127 South Jamaica Street.
(7)
The net sale proceeds of $159.4 million from 100 East Pratt were used to repay the $119.0 million remaining on the 2015 Bridge Loan on April 1, 2016.


F-20


(8)
The net proceeds from the sale of 1881 Campus Commons were used to reduce the outstanding balance of the 2015 Bridge Loan.
(9)
Sale price is for our partial interest in the property. On October 28, 2015, Columbia Property Trust transferred the Market Square properties, valued at $595.0 million and subject to a $325.0 million mortgage note, to a joint venture and sold a 49% interest in that joint venture to Blackstone Property Partners for net proceeds of approximately $120.0 million. Columbia Property Trust retains a 51% interest in the Market Square Joint Venture. See Note 4, Unconsolidated Joint Ventures, for additional information.
(10)
Columbia Property Trust closed on the sale of 11 properties on July 1, 2015 (the "11 Property Sale"). The 11 Property Sale included 170 and 180 Park Avenue in Northern New Jersey; 1580 West Nursery Road in Baltimore; Acxiom, Highland Landmark III, The Corridors III, 215 Diehl Road, 544 Lakeview, and Bannockburn Lake III in Chicago; and Robbins Road and 550 King Street in Boston. The proceeds for 10 of the properties were available on July 1, 2015, and the remaining proceeds were available on August 3, 2015. For the period from January 1, 2015 through July 1, 2015, the aggregate net income, excluding the gain on sale, for the properties included in the 11 Property Sale was $6.5 million; and for the year ended December 31, 2015, the net income for the properties included in the 11 Property Sale was $3.0 million, excluding the gain on sale.
100 East Pratt Property
On March4.    Unconsolidated Joint Ventures
As of December 31, 2017 and December 31, 2016, Columbia Property Trust sold the 100 East Pratt Property in Baltimore, Maryland, for $187.0 million, before purchase price adjustments, and recognized a $0.3 million loss on the sale. The net sale proceeds of $159.4 million were used to repay $119.0 million remaining on the $300 Million Bridge Loan on April 1, 2016.
Market Square Buildings - Partial Sale
On October 28, 2015, Columbia Property Trust transferred the Market Square Buildings and the related $325.0 million mortgage note to a joint venture (the "Market Square Joint Venture") and sold a 49% interestowns interests in the Market Square Joint Venture to Blackstone Property Partners ("Blackstone")following properties through joint ventures, which are accounted for approximately $120.0 millionusing the equity method of net proceeds, which were used to repay a portion of the $300 Million Bridge Loan. As a result of this transaction, Columbia Property Trust recognized a gain on real estate assets of $3.1 million and retains a 51% interest in the Market Square Joint Venture. The Market Square Joint Venture owns and operates the Market Square Buildings through a REIT ("Market Square East & West, LLC"). See Note 4, Unconsolidated Joint Venture, for additional information.
11 Property Sale
On July 1, 2015, Columbia Property Trust sold 11 properties to an unaffiliated third party for $433.3 million, exclusive of purchase price adjustments and closing costs (the "11 Property Sale"), which resulted in a gain of $20.2 million. The proceeds for 10 of the properties were available on July 1, 2015, and the remaining proceeds were available on August 3, 2015. For the period from January 1, 2015 through July 1, 2015, the aggregate net income, excluding the gain on sale, for the properties included in the 11 Property Sale was $6.5 million; and for the years ended December 31, 2014, the net income for the properties included in the 11 Property Sale was $3.0 million. The 11 Property Sale including the following properties:accounting:
         Carrying Value of Investment
Joint Venture(1)
 Property Name Geographic Market Ownership Interest December 31, 2017 December 31, 2016
Market Square Joint Venture Market Square Washington, D.C. 51.0%  $128,411
 $127,346
University Circle Joint Venture University Circle San Francisco 77.5%
(2) 
 173,798
 
333 Market Street Joint Venture 333 Market Street San Francisco 77.5%
(2) 
 288,236
 
114 Fifth Avenue Joint Venture 114 Fifth Avenue New York 49.5%  110,311
 
1800 M Street Joint Venture 1800 M Street Washington, D.C. 55.0%  242,486
 
         $943,242
 $127,346
170 Park Avenue
(1)
Bannockburn Lake III
See Note 3, Real Estate Transactions, for a description of the formation of these joint ventures.
Acxiom
180 Park Avenue
(2)
544 Lakeview215 Diehl Road
Robbins RoadHighland Landmark III1580 West Nursery
550 KingOn February 1, 2018, Allianz acquired from Columbia Property Trust an additional 22.5% interest in each of the University Circle Joint Venture and the 333 Market StreetThe Corridors III Joint Venture, thereby reducing Columbia Property Trust's equity interest in each joint venture to 55.0%.
1881 Campus Commons
On December 10, 2015, Columbia Property Trust closed on the sale of the 1881 Campus Commons Building in Reston, Virginia, for $65.0 million, exclusive of purchase price adjustments and closing costs, yielding a gain of $0.5 million. The proceeds from the sale of the 1881 Campus Commons Building were used to reduce the outstanding balance of the $300 Million Bridge Loan, as described in Note 5, Line of Credit and Notes Payable.
160 Park Avenue Building
On June 4, 2014, Columbia Property Trust closed on the sale of the 160 Park Avenue Building in Florham Park, New Jersey, for $10.2 million, exclusive of transaction costs. Columbia Property Trust recognized an impairment loss of $13.6 million related to this building in the first quarter of 2014, as further described in Note 2, Summary of Significant Accounting Policies.
200 South Orange Building
On June 30, 2014, Columbia Property Trust closed on the sale of the 200 South Orange Building in Orlando, Florida, for $18.8 million, exclusive of transaction costs. This transaction resulted in a $1.4 million impairment loss in the second quarter of 2014, as further described in Note 2, Summary of Significant Accounting Policies.
7031 Columbia Gateway Drive Building
On July 1, 2014, Columbia Property Trust closed on the sale of the 7031 Columbia Gateway Drive Building in Columbia, Maryland, for $59.5 million, exclusive of transaction costs, yielding a gain on sale of real estate assets of $7.7 million.
9 Technology Drive Building
On August 22, 2014, Columbia Property Trust closed on the sale of the 9 Technology Drive Building in Westborough, Massachusetts, for $47.0 million, exclusive of purchase price adjustments and transaction costs, yielding a gain on sale of real estate assets of $11.1 million.


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Index to Financial Statements

Lenox Park Property
On October 3, 2014, Columbia Property Trust closed on the sale of the Lenox Park Property, containing five buildings, in Atlanta, Georgia, for $290.0 million, exclusive of transaction costs, yielding a gain on sale of real estate assets of $56.5 million in the fourth quarter of 2014.
4.    Unconsolidated Joint Venture
Columbia Property Trust owns a majorityhas determined that each of the joint ventures do not qualify as variable interest of 51% in the Market Square Joint Venture,entities.  However, Columbia Property Trust and Blackstone owns the remaining 49% interestits partners have substantive participation rights in the joint venture. The Market Square Joint Venture owns and operates the Market Square Buildings through Market Square East & West, LLC, which operates as a REIT. The Market Square Buildings are two, 13-story office buildings containing 698,000 square feet of office space in Washington, D.C. Columbia Property Trust shares substantive participation rights with Blackstone,ventures, including management selection and termination, and the approval of material operating and capital decisions and, asdecisions. As such, Columbia Property Trust uses the equity method of accounting to record its investment.investment in these joint ventures. Under the equity method, the investment in the joint ventureventures is recorded at cost and adjusted for equity in earnings and cash contributions and distributions. Incomedistributions, and allocations of income or loss and cash distributions are allocated according to the provisions of the joint venture agreement, which are consistent with the ownership percentages for the Market Square Joint Venture.loss.
Columbia Property Trust evaluates the recoverability of its investment in unconsolidated joint ventureventures in accordance with accounting standards for equity investments by first reviewing the investment for any indicators of impairment. If indicators are present, Columbia Property Trust estimates the fair value of the investment. If the carrying value of the investment is greater than the estimated fair value, management makes an assessment of whether the impairment is "temporary" or "other-than-temporary." In making this assessment, management considers the following: (1) the length of time and the extent to which fair value has been less than cost, and (2) Columbia Property Trust's intent and ability to retain its interest long enough for a recovery in market value. Based on the assessment as described above, Columbia Property Trust has determined that none of its investments in joint ventures are other-than-temporarily impaired as of December 31, 2017.
Mortgage Debt and Related Guaranty
The Market Square Joint Venture is the only joint venture with mortgage debt. As of December 31, 2017 and December 31, 2016, the outstanding balance on the interest-only Market Square mortgage note is $325.0 million, bearing interest at 5.07%. The Market Square mortgage note matures on July 1, 2023. On October 28, 2015, Columbia Property Trust entered intoguarantees a guaranty of a $25.0 million portion of the Market Square mortgage note, the amount of which has been reduced to $11.2 million as of December 31, 2017 from $16.1 million as of December 31, 2016, as a result of leasing at the Market Square Buildings.property. The amount of the guaranty will continue to be reduced as space is leased.
Condensed balance sheet information for the Market Square Joint Venture is as follows (in thousands):
 As of December 31,
 2016 2015
Total assets$587,344
 $573,073
Total debt$324,656
 $324,603
Total equity$242,802
 $230,060
Columbia Property Trust's investment$127,346
 $118,695
Condensed income statement information for the Market Square Joint Venture is as follows (in thousands):
 For the Year Ended December 31, 2016 From inception through
December 31, 2015
Total Revenues$41,230
 $7,962
Net loss$(14,825) $(2,239)
Columbia Property Trust's share$(7,561) $(1,142)
Columbia Property Trust provides property and asset management services to the Market Square Joint Venture. Under these agreements, Columbia Property Trust oversees the day-to-day operations of the Market Square Joint Venture and the Market Square Buildings, including property management, property accounting, and other property services. Columbia Property Trust receives property management fees equal to 3% of the gross revenue of the Market Square Buildings, payable monthly, and asset management fees of $1.0 million annually, in equal quarterly installments. During 2016 and 2015, Columbia Property Trust earned $2.6 million and $0.2 million, respectively, in fees related to these asset and property management services, which are included in other property income on the accompanying consolidated statement of operations. The Market Square Joint Venture was formed in October 2015, so similar fees were not earned during 2014 or the first nine months of 2015. As of December 31, 2016 and 2015, property


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Index to Financial Statements

Condensed Combined Financial Information
Summarized balance sheet information for each of the unconsolidated joint ventures is as follows (in thousands):
  Total Assets Total Debt 
Total Equity(1)
  December 31, 2017 December 31, 2016 December 31, 2017 December 31, 2016 
December 31,
2017
 December 31, 2016
Market Square Joint Venture $590,115
 $587,344
 $324,708
 $324,656
 $244,506
 $242,802
University Circle Joint Venture 227,368
 
 
 
 221,154
 
333 Market Street Joint Venture 385,297
 
 
 
 368,994
 
114 Fifth Avenue Joint Venture 392,486
 
 
 
 170,525
 
1800 M Street Joint Venture 458,964
 
 
 
 438,227
 
  $2,054,230
 $587,344
 $324,708
 $324,656
 $1,443,406
 $242,802
(1)
There is an aggregate basis difference of $32.0 million, which represents the differences between the historical costs recorded at the joint venture level, and Columbia Property Trust's investment in the joint ventures and results from differences in the timing of each partner's interest acquisition and formation costs incurred by Columbia Property Trust. The basis difference is being amortized to income (loss) from unconsolidated joint ventures over the lives of the related assets or liabilities.
Summarized income statement information for the unconsolidated joint ventures for the years ended December 31, 2017, 2016 and 2015 is as follows (in thousands):
  Total Revenues Net Income (Loss) Columbia Property Trust's Share of Net Income (Loss)
  2017 2016 2015 2017 2016 2015 2017 2016 2015
Market Square Joint Venture $41,749
 $41,230
 $7,962
 $(15,192) $(14,825) $(2,239) $(7,747) $(7,561) $(1,142)
University Circle Joint Venture 19,386
 
 
 9,826
 
 
 7,561
 
 
333 Market Street Joint Venture 12,971
 
 
 6,948
 
 
 5,331
 
 
114 Fifth Avenue Joint Venture 20,133
 
 
 (4,885) 
 
 (2,820) 
 
1800 M Street Joint Venture 8,005
 
 
 619
 
 
 326
 
 
  $102,244
 $41,230
 $7,962
 $(2,684) $(14,825) $(2,239) $2,651
 $(7,561) $(1,142)
Property and Asset Management Fees
Columbia Property Trust provides property and asset management services to the Market Square Joint Venture, the University Circle Joint Venture, the 333 Market Street Joint Venture, and the 1800 M Street Joint Venture. Under these agreements, Columbia Property Trust oversees the day-to-day operations of these joint ventures and their properties, including property management, property accounting, and other administrative services. During the years ended December 31, 2017, 2016, and 2015, Columbia Property Trust earned the following fees from these unconsolidated joint ventures:
  2017 2016 2015
Market Square Joint Venture $1,998
 $2,122
 $213
University Circle Joint Venture 1,000
 
 
333 Market Street Joint Venture 367
 
 
1800 M Street Joint Venture 417
 
 
  $3,782
 $2,122
 $213
Columbia Property Trust also received reimbursements of property operating costs of $2.0 million and $0.5 million for the years ended December 31, 2017 and 2016, respectively, and none for the year ended December 31, 2015, which are included in other property income revenues in the accompanying consolidated statements of operations. Property management fees of $0.4 million, and $0.1 million, respectively, were payabledue to Columbia Property Trust from the joint ventures and are included in prepaid expenses and other assets on the accompanying consolidated balance sheet.sheets as of December 31, 2017 and December 31, 2016, respectively.


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Index to Financial Statements

5.Line of Credit and Notes Payable
As of December 31, 20162017 and 2015,2016, Columbia Property Trust had the following line of credit and notes payable indebtedness outstanding (excluding bonds payable; see Note 6, Bonds Payable) in thousands:
 Rate as of
December 31, 2016
 Term Debt or Interest Only 
Outstanding Balance as of
December 31,
 Rate as of
December 31, 2017
 Term Debt or Interest Only 
Outstanding Balance as of
December 31,
Facility Maturity 2016 2015 Maturity 2017 2016
$300 Million Term Loan LIBOR + 110 bp
(1) 
 Interest only 7/31/2020 $300,000
 $300,000
 LIBOR + 110 bp
(1) 
 Interest only 7/31/2020 $300,000
 $300,000
$300 Million Bridge Loan LIBOR + 110 bp
(2) 
 Interest only 11/27/2018 300,000
 
Revolving Credit Facility LIBOR + 100 bp
(3) 
 Interest only 7/31/2019 152,000
 
$150 Million Term Loan LIBOR + 155 bp
(2) 
 Interest only 7/29/2022 150,000
 150,000
 LIBOR + 110 bp
(4) 
 Interest only 7/29/2022 150,000
 150,000
263 Shuman Boulevard Building mortgage note(3)(5)
 10.55% Interest only 7/1/2017 49,000
 49,000
One Glenlake Building mortgage note 5.80% Term debt 12/10/2018 23,176
 26,315
650 California Street Building mortgage note 3.60% Term debt 7/1/2019 126,287
 128,785
 3.60% Term debt 7/1/2019 
 126,287
221 Main Building mortgage note 3.95% Interest only 5/10/2017 73,000
 73,000
 3.95% Interest only 5/10/2017 
 73,000
263 Shuman Boulevard Building mortgage note(3)(5)
 5.55% Interest only 7/1/2017 49,000
 49,000
One Glenlake Building mortgage note 5.80% Term debt 12/10/2018 26,315
 29,278
Revolving Credit Facility LIBOR + 100 bp
(4) 
 Interest only 7/31/2019 
 247,000
$300 Million Bridge Loan LIBOR + 110 bp
(5) 
 Interest only 8/4/2016 
 119,000
SanTan Corporate Center mortgage notes 5.83% Interest only 10/11/2016 
 39,000
Less: Deferred financing costs related to term loans and notes payable   (3,136) (4,492)
Less: Deferred financing costs related to term loans, bridge loan, and mortgage notes payable   (2,991) (3,136)
Total indebtedness   $721,466
 $1,130,571
   $971,185
 $721,466
(1) 
The $300 Million Term Loan as further described below, bears interest, at Columbia Property Trust's option, at LIBOR, plus an applicable margin ranging from 0.90% to 1.75% for LIBOR loans, or an alternate base rate, plus an applicable margin ranging from 0.00% to 0.75% for base-rate loans, based on Columbia Property Trust's applicable credit rating.
(2) 
The $300 Million Bridge Loan bears interest, at Columbia Property Trust is partyTrust's option, at LIBOR, plus an applicable margin ranging from 0.90% to 1.75% for LIBOR loans, or an interestalternate base rate, swap agreement with a notional amount of $150.0 million, which effectively fixes its interest rateplus an applicable margin ranging from 0.00% to 0.75% for base-rate loans, based on the $150 Million Term Loan, as further described below, at 3.52% and terminates on July 29, 2022. This interest rate swap agreement qualifies for hedge accounting treatment; therefore, changes in the fair value are recorded as a market value adjustment to interest rate swap in the accompanying consolidated statement of other comprehensive income.Columbia Property Trust's applicable credit rating.
(3)
In January 2017, the lender put this loan into non-monetary default because the full-building lease with OfficeMax was not renewed, as required by the loan agreement. OfficeMax vacated the property in 2015, and the lease will expire in May 2017. Columbia Property Trust is in process of working to transfer this property to the lender.
(4) 
Borrowings under the Revolving Credit Facility, as described below, bear interest at the option of Columbia Property Trust at LIBOR, plus an applicable margin ranging from 0.875% to 1.55% for LIBOR-based borrowings, or an alternate base rate, plus an applicable margin ranging from 0.00% to 0.55% for base-rate borrowings, based on Columbia Property Trust's applicable credit rating.
(4)
Columbia Property Trust is party to an interest rate swap agreement with a notional amount of $150.0 million, which effectively fixes its interest rate on the $150 Million Term Loan, as further described below, at 3.07% and terminates on July 29, 2022. This interest rate swap agreement qualifies for hedge accounting treatment; therefore, changes in the fair value are recorded as a market value adjustment to interest rate swap in the accompanying consolidated statement of other comprehensive income.
(5) 
The $300 Million Bridge Loan bore interest,OfficeMax lease at 263 Shuman Boulevard expired in May 2017, and the mortgage note matured in July 2017. Columbia Property Trust's option, at either LIBOR, plus an applicable margin ranging from 0.90%Trust is working with the special-servicer to 1.75% for LIBOR loans, or an alternate base rate, plus an applicable margin ranging from 0.00%effect the transfer of the property to 0.75% based onthe lender in settlement of the loan principal, accrued interest expense and accrued property operating expenses. In the third and fourth quarters of 2017, Columbia Property Trust's applicable credit rating.Trust accrued related interest expense of $2.6 million at the default rate of 10.55%, and property operating expenses of $0.9 million, primarily related to property taxes and repairs and maintenance.
Term Loans$300 Million Bridge Loan
On July 30, 2015, Columbia Property Trust replaced a $450 million term loan, which had a maturity date of February 3, 2016, with two separate term loans.November 27, 2017, Columbia Property Trust entered into a $300.0 million, unsecured, single-draw term loan (the "$300 Million Term Loan") with a syndicate of banks with J.P. Morgan Securities LLC and PNC Capital Markets LLC serving as joint lead arrangers and joint book runners. The $300 Million Term Loan matures on July 31, 2020. Columbia Property Trust also entered into a $150.0 million unsecured, single-draw term loan (the "$150 Million Term Loan") with a syndicate of banks with Wells Fargo Securities, LLC, U.S. Bank National Association, and Regions Capital Markets serving as joint lead arrangers and joint bookrunners. The $150 Million Term Loan matures on July 29, 2022.
The $300 Million Term Loan bears interest, at Columbia Property Trust's option, at LIBOR, plus an applicable margin ranging from 0.90% to 1.75% for LIBOR Loans, or an alternate base rate, plus an applicable margin ranging from 0.00% to 0.75% for base rate loans, based on Columbia Property Trust's applicable credit rating. The $300 Million Term Loan and the Revolving Credit Facility, as described below, provide for four accordion options for an aggregate amount of up to $400.0 million, subject to certain conditions. The $150 Million Term Loan bears interest, at Columbia Property Trust's option, at LIBOR, plus an applicable margin ranging from 1.40% to 2.35% for LIBOR loans, or a base rate, plus an applicable margin ranging from 0.40% to 1.35% for base-rate loans, based on Columbia Property Trust's applicable credit rating. The interest rate on the $150 Million Term Loan has been effectively fixed at 3.52% with an interest rate swap agreement, which was designated as a cash flow hedge. The $150 Million Term Loan provides for four accordion options for an aggregate amount of $300.0 million, subject to certain conditions.


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Index to Financial Statements

Revolving Credit Facility
On July 30, 2015, Columbia Property Trust amended the Revolving Credit Facility, with a total capacity of $500.0 million with J.P. Morgan Securities LLC and PNC Capital Markets LLC serving as joint lead arrangers and joint book runners, to, among other things: (i) change the margins on the interest rate under the facility, as described below; (ii) extend the maturity date from August 2017 to July 2019 with two, six-month extension options; (iii) enable Columbia Property Trust to increase the Revolving Credit Facility and the $300 Million Term Loan, as described above, by an aggregate amount of up to $400.0 million on four occasions; and (iv) revise certain covenants under the facility.
The Revolving Credit Facility, as entered into on July 30, 2015, bears interest, at Columbia Property Trust's option, at LIBOR, plus an applicable margin ranging from 0.875% to 1.55% for LIBOR-based borrowings, or an alternate base rate, plus an applicable margin ranging from 0.00% to 0.55% for base-rate borrowings, based on Columbia Property Trust's applicable credit rating. Previously, the applicable margin was a range from 1.00% to 1.70% for LIBOR-based borrowings or a range from 0.00% to 0.70% for base-rate borrowings. Additionally, the per annum facility fee on the aggregate revolving commitment (used or unused) now ranges from 0.125% to 0.30%, also based on Columbia Property Trust's applicable credit rating. Prior to amendment, the per annum facility fee ranged from 0.15% to 0.35%.
$300 Million Bridge Loan
On August 4, 2015, Columbia Property Trust entered into a $300.0 million, six-month,one-year, unsecured loan with a syndicate of banks led by JPMorgan Chase Bank, N.A. (the "$300 Million Bridge Loan"). The proceeds from the $300 Million Bridge were used to finance a portion ofrepay borrowings under the 229 West 43rd Street Building acquisition.Revolving Credit Facility, which were used to fund real estate acquisitions. At Columbia Property Trust's option, borrowings under the $300 Million Bridge Loan bear interest at either (i) an alternate base rate, plus an applicable margin based on five stated pricing levels ranging from 0.00% to 0.75% or (ii) LIBOR, plus an applicable margin based on five stated pricing levels ranging from 0.90% to 1.75%, in each case based on Columbia Property Trust's credit rating.
On December 21, 2015, Columbia Property Trust exercised its option to extend the $300 Million Bridge Loan's maturity date by six months from February 4, 2016 to August 4, 2016. Columbia Property Trust repaid the $119.0 million remaining outstanding balance on the The $300 Million Bridge Loan on April 1, 2016,provides for one six-month extension option to May 24, 2019, subject to certain fees and the satisfaction of certain other conditions.
Term Loan Amendment
On July 25, 2017, Columbia Property Trust amended the terms of its $150 Million Term Loan, to reduce the current interest rate from 3.52% to 3.07% per annum. The amendment reduced the interest rate from LIBOR, plus an applicable margin ranging from 1.40% to 2.35%, to LIBOR, plus an applicable margin ranging from 0.90% to 1.75%. The maturity date, debt covenants, and other terms of the $150 Million Term Loan are unchanged. The interest rate is effectively fixed with an interest rate swap agreement, which is designated as described below.a cash flow hedge.


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Index to Financial Statements

Debt Covenants
The $300 Million Term Loan, the $300 Million Bridge Loan, the $150 Million Term Loan, and the Revolving Credit Facility (collectively, the "Debt Facilities") contain representations and warranties, financial and other affirmative and negative covenants, events of defaults, and remedies typical for these types of facilities. The financial covenants in the Debt Facilities:
(a)limit the ratio of secured debt to total asset value, as defined therein, to 40% or less;
(b)require the fixed charge coverage ratio, as defined therein, to be at least 1.50:1.00;
(c)limit the ratio of debt to total asset value, as defined therein, to 60% or less;
(d)require the ratio of unencumbered adjusted net operating income, as defined therein, to unsecured interest expense, as defined therein, to be at least 1.75:1.00;
(e)require the ratio of unencumbered asset value, as defined therein, to total unsecured debt, as defined therein, to be at least 1.66:1.00; and
(f)require maintenance of certain minimum tangible net worth balances.
As of December 31, 2016,2017, Columbia Property Trust believes it was in compliance with the restrictive financial covenants on its Debt Facilities and notes payable obligations.
Fair Value of Debt
The estimated fair value of Columbia Property Trust's consolidated line of credit and notes payable as of December 31, 20162017 and 20152016, was approximately $728.5$975.3 million and $1,140.1728.5 million, respectively. The related carrying value of the line of credit and notes payable as of December 31, 2017 and 2016, and 2015, was $724.6$974.2 million and $1,135.1$724.6 million, respectively. Columbia Property Trust estimated the fair value of its line of credit by obtaining estimates for similar facilities from multiple market participants as of the respective reporting dates. Therefore, the fair values determined are considered to be based on observable market data for similar instruments (Level 2). The fair values of all other debt instruments were estimated based on discounted cash flow analyses using the current incremental borrowing rates for similar types of borrowing arrangements as of the respective reporting dates (Level 3).


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Interest Paid and Capitalized
As of December 31, 20162017 and 2015,2016, Columbia Property Trust's weighted-average interest rate on its consolidated line of credit and notes payable was approximately 3.09%3.16% and 2.54%3.09%, respectively. Columbia Property Trust made interest payments of approximately $21.5 million, $27.8 million, and $54.0 million during 2017, 2016, and $56.1 million during 2016, 2015, and 2014, respectively, of which approximately $0.7 million, $0.3 million, and $0.6 million was capitalized during 2017, 2016, and 2015, respectively, and no interest was capitalized during 2014.respectively.
Debt Repayments and Maturities
During 20152017 and 2016 Columbia Property Trust made the following debt repayments:
On August 17, 2017, Columbia Property Trust repaid the $124.8 million balance of the 650 California Street building mortgage note, which was originally scheduled to mature on July 1, 2019. Columbia Property Trust recognized a loss on early extinguishment of debt of $0.3 million related to unamortized deferred financing costs.
On March 10, 2017, Columbia Property Trust repaid the $73.0 million balance of the 221 Main Street building mortgage note, which was originally scheduled to mature on May 10, 2017. Columbia Property Trust recognized a loss on early extinguishment of debt of $45,000 related to unamortized deferred financing costs.
On October 3, 2016, a portion of the proceeds from the sale of the 80 Park Plaza Property werewas used to repay the $99.0 million remaining outstanding balance on the Revolving Credit Facility. No additional borrowings were made against the Revolving Credit Facility during the remainder of 2016.
On June 30, 2016, Columbia Property Trust used borrowings on the Revolving Credit Facility to repay the $39.0 million SanTan Corporate Center mortgage notes, which were scheduled to mature on October 11, 2016, resulting in the write off of approximately $10,000 of related unamortized financing costs, which are included in2016. Columbia Property Trust recognized a loss on early extinguishment in the accompanying statements of operations.debt of $10,000 related to unamortized deferred financing costs.
On April 1, 2016, Columbia Property Trust repaid the $119.0 million remaining on the $300 Million2015 Bridge Loan, which was used to finance a portion of the 229 West 43rd Street Building acquisition in August of 2015. The $300 Million2015 Bridge Loan was scheduled to mature on August 4, 2016. Columbia Property Trust recognized a loss on early extinguishment of debt of $82,000 related to unamortized deferred financing costs.
On June 1, 2015, Columbia Property Trust repaid the mortgage note for the 333 Market Street Building for $206.5 million and the related interest rate swap agreement expired. The maturity date for the 333 Market Street Building mortgage note was July 1, 2015.
On July 1, 2015, in connection with the 11 Property Sale, Columbia Property Trust repaid the mortgage note for the 215 Diehl Road Building, one

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Table of the properties included in the 11 Property Sale, for $21.0 million. As a result, Columbia Property Trust recognized a loss on early extinguishment of debt of $2.1 million, primarily as a result of a prepayment premium. The maturity date for the 215 Diehl Road Building mortgage note was July 1, 2017.Contents
On July 13, 2015, Columbia Property Trust repaid the $105.0 million mortgage note on the 100 East Pratt Street Building at par. The maturity date for the 100 East Pratt Street Building mortgage note was June 11, 2017.Index to Financial Statements

The following table summarizes the aggregate maturities of Columbia Property Trust's line of credit and notes payable as of December 31, 20162017 (in thousands):
2017$127,728
201825,859
$323,176
2019121,016
152,000
2020300,000
300,000
2021

2022150,000
Thereafter150,000

Total(1)$724,603
$925,176
(1)
The $49.0 million 263 Shuman mortgage note is excluded from this table. The mortgage note matured in July 2017. Columbia Property Trust is working with the special-servicer to effect the transfer of the property to the lender in settlement of the loan principal, accrued interest expense, and accrued property operating expenses.
6.Bonds Payable
On August 12, 2016, Columbia Property Trust OP issued $350 million of ten-year,10-year, unsecured 3.650% senior notes, which are guaranteed by Columbia Property Trust, at 99.626% of theirits face value (the "2026 Bonds Payable"), which are guaranteed by Columbia Property Trust.pursuant to a shelf registration statement. Columbia Property Trust OP received net proceeds from the 2026 Bonds Payable of $346.4 million, which were used to redeem $250.0 million of seven-year, unsecured 5.875% senior notes due April 2018 (the "2018 Bonds Payable"), including a $17.9 million make-whole payment reflected as an early loss on extinguishment of debt in the accompanying consolidated statement of operations. The remaining net proceeds were used to repay borrowings on the Revolving Credit Facility.. The 2026 Bonds Payable require semi-annual interest payments in February and August based on a contractual annual interest rate of 3.650%. In the accompanying consolidated balance sheets, the 2026 Bonds Payable are shown net of the initial issuance discount of approximately $1.3 million, which will be amortized to interest expense over the term of the 2026 Bonds Payable using the effective interest method. The principal amount of the 2026 Bonds Payable is due and payable on the maturity date, August 15, 2026.


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In March 2015, Columbia Property Trust OP issued $350.0 million of ten-year,10-year, unsecured 4.150% senior notes, which are guaranteed by Columbia Property Trust, at 99.859% of their face value (the "2025 Bonds Payable"), pursuant to a shelf registration statement, which are guaranteed by Columbia Property Trust.statement. Columbia Property Trust OP received proceeds from the 2025 Bonds Payable, net of fees, of $347.2 million. The 2025 Bonds Payable require semi-annual interest payments in April and October based on a contractual annual interest rate of 4.150%. In the accompanying consolidated balance sheets, the 2025 Bonds Payable are shown net of the initial issuance discount of approximately $0.5 million, which will be amortized to interest expense over the term of the 2025 Bonds Payable using the effective interest method. The principal amount of the 2025 Bonds Payable is due and payable on the maturity date, April 1, 2025.
InDuring the year ended December 31, 2017, Columbia Property Trust made interest payments of $27.4 million on the 2025 Bonds Payable and 2026 Bonds Payable; and during the year ended December 31, 2016, and 2015, Columbia Property Trust made interest payments of $28.0 million and $22.7 million, respectively, on the 2025 Bonds Payable and the 2018 Bonds Payable. Interest payments on the 2025 Bonds Payable began in October 2015, and interest payments on the 2026 Bonds Payable will began in February 2017.
The restrictive covenants on the 2026 Bonds Payable and the 2025 Bonds Payable, as defined, pursuant to an indenture include:
a limitation on the ratio of debt to total assets, as defined, to 60%;
limits to Columbia Property Trust's ability to incur debt if the consolidated income available for debt service to annual debt service charge, as defined, for four previous consecutive fiscal quarters is less than 1.5:1 on a pro forma basis;
limits to Columbia Property Trust's ability to incur liens if, on an aggregate basis for Columbia Property Trust, the secured debt amount would exceed 40% of the value of the total assets; and
a requirement that the ratio of unencumbered asset value, as defined, to total unsecured debt be at least 150% at all times.
As of December 31, 20162017, Columbia Property Trust believes it was in compliance with the restrictive financial covenants on its 2026 Bonds Payable and 2025 Bonds Payable.
The estimated fair value of the 2025 Bonds Payable and the 2026 Bonds Payable as of December 31, 2017 and 2016, was approximately $702.8 million and $703.1 million, was approximately $703.1 million and the fair value of the 2018 Bonds Payable and 2025 Bonds Payable as of December 31, 2015, was $602.3 million.respectively. The related carrying value of the bonds payable, net of discounts, as of December 31, 2017 and 2016, and 2015, was $698.3$698.5 million and $595.3$698.3 million, respectively. The fair value of the bonds payable was estimated based on discounted cash flow analyses using the current incremental borrowing rates for similar types of borrowing as of the respective reporting dates (Level 2). The discounted cash flow method of assessing fair value results in a general approximation of value, which may differ from the price that could be achieved in a market transaction.


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7.Commitments and Contingencies
Commitments Under Existing Lease Agreements
Certain lease agreements include provisions that, at the option of the tenant, may obligate Columbia Property Trust to expend capital to expand an existing property or provide other expenditures for the benefit of the tenant. As of December 31, 2016,2017, no tenants have exercised such options that have not been materially satisfied or recorded as a liability in the accompanying consolidated balance sheets.
Obligations Under Operating Leases
Columbia Property Trust owns fourthree properties that are subject to ground leases with expiration dates of December 31, 2058, February 28, 2062, December 14, 2077, and July 31, 2099.2099, respectively. The lease expiring on December 14, 2077, has been fully prepaid. Columbia Property Trust also leases space for its corporate office. Columbia Property Trust incurred $2.6 million in rent expense related to such ground leases in 2017, 2016, 2015, and 2014. The lease expiring on December 14, 2077, has been fully prepaid, and the lease expiring on December 31, 2058 relates to a property held for sale.2015. As of December 31, 2016,2017, the required payments under the terms of the remaining two consolidated ground leases and the corporate office lease are as follows (in thousands):
2017$2,642
20182,671
20192,671
20202,671
20212,671
Thereafter195,116
       Total$208,442


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2018$3,282
20193,360
20203,382
20213,405
20223,587
Thereafter192,352
       Total$209,368
Obligations Under Capital Leases
The building at Three Glenlake Building is subject to a capital lease of land. This obligation requires payments equal to the amounts of principal and interest receivable from related investments in development authority bonds, which maturesmature in 2021. The required payments under the terms of the leases are as follows as of December 31, 20162017 (in thousands):
2017$7,200
20187,200
$7,200
20197,200
7,200
20207,200
7,200
2021127,200
127,200
2022
Thereafter

156,000
148,800
Amounts representing interest(36,000)(28,800)
Total$120,000
$120,000
Guaranty of Debt of Unconsolidated Joint Venture
Upon entering into the Market Square Joint Venture in October 2015, Columbia Property Trust entered into a guaranty of a $25.0 million portion of the Market Square mortgage note, the amount of which is reduced as space is leased. As a result of leasing, the guaranty has been reduced to $16.1$11.2 million as of December 31, 2016.2017. Columbia Property Trust believes that the likelihood of making a payment under this guaranty is remote; therefore, no liability has been recorded related to this guaranty as of December 31, 2016.2017.
Litigation
Columbia Property Trust is subject to various legal proceedings, claims, and administrative proceedings arising in the ordinary course of business, some of which are expected to be covered by liability insurance. Management makes assumptions and estimates concerning the likelihood and amount of any reasonably possible loss relating to these matters using the latest information available. Columbia Property Trust records a liability for litigation if an unfavorable outcome is probable and the amount of loss or range of loss can be reasonably estimated. If an unfavorable outcome is probable and a reasonable estimate of the loss is a range, Columbia


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Property Trust accrues the best estimate within the range. If no amount within the range is a better estimate than any other amount, Columbia Property Trust accrues the minimum amount within the range. If an unfavorable outcome is probable but the amount of the loss cannot be reasonably estimated, Columbia Property Trust discloses the nature of the litigation and indicates that an estimate of the loss or range of loss cannot be made. If an unfavorable outcome is reasonably possible and the estimated loss is material, Columbia Property Trust discloses the nature and estimate of the possible loss of the litigation. Columbia Property Trust does not disclose information with respect to litigation where the possibility of an unfavorable outcome is considered to be remote. Based on current expectations, such matters, both individually and in the aggregate, are not expected to have a material adverse effect on the liquidity, results of operations, business, or financial condition of Columbia Property Trust. Columbia Property Trust is not currently involved in any legal proceedings of which management would consider the outcome to be reasonably likely to have a material adverse effect on the results of operations or financial condition of Columbia Property Trust.
8.Equity
Common Stock Repurchase Program
Columbia Property Trust's board of directors has authorized the repurchase of up to an aggregate of $200$200.0 million of its common stock, par value $0.01 per share, from September 4, 2015 through September 4, 2017. Columbia Property Trust will continue to evaluate the acquisition of shares primarily through open market transactions, subject to market conditions and other factors.2017 (the "2015 Stock Repurchase Program"). Under the 2015 Stock Repurchase Program, during 2016 and 2015, Columbia Property Trust acquired approximately 3.15.6 million shares at an average price of $22.13,$21.85 per share, for aggregate purchases of $69.1$121.4 million. Columbia Property Trust's board of directors authorized a second stock repurchase program to purchase up to an aggregate of $200.0 million of its common stock, par value $0.01 per share, from September 4, 2017 through September 4, 2019 (the "2017 Stock Repurchase Program"). During the year ended December 31, 2017, Columbia Property Trust repurchased 2.7 million shares at an average price of $21.46 per share, for aggregate purchases of $57.6 million under the 2015 Stock Repurchase Program and the 2017 Stock Repurchase Program. As of December 31, 2016, $130.92017, $194.8 million remains available for repurchases under the 2017 Stock Repurchase Program. Common stock repurchases are charged against equity as incurred, and the repurchased shares are retired. Columbia Property Trust will continue to evaluate the purchase of shares, primarily through open market transactions, which are subject to market conditions and other factors.


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Long-Term Incentive Plan
Columbia Property Trust maintains a shareholder-approved, long-term incentive plan that provides for grants of stock to be made to certain employees and independent directors of Columbia Property Trust (the(as amended and restated, the "LTIP"). In July 2013,May 2017, Columbia Property Trust's shareholders approved the LTIP, and 2,000,0004.8 million shares wereare authorized and reserved for issuance under the LTIP.
On January 20, 2017, Columbia Property Trust has made the following share grantsgranted 193,535 shares of common stock to employees, innet of 17,938 shares withheld to settle the related tax liability, under the LTIP for 2016 2015, and 2014.
Grant Grant Date Shares Granted Shares Withheld for Taxes
2016 Employee Grant January 21, 2016 231,015
 20,842
2015 Employee Grant January 21, 2015 123,187
 11,368
2014 Employee Grant January 21, 2014 143,740
 12,752
For eachperformance, of the grants,which 25% of the shares vested upon grant, andgrant; the remaining shares will vest ratably, with the passage of time, on January 31,st of the following three years. 2018, 2019, and 2020. Employees will receive quarterly dividends related to their entire grant, including the unvested shares, on each dividend payment date. A
For 2017, Columbia Property Trust modified the structure of awards granted under the LTIP to include both time-based awards and performance-based awards for all participants. For the 2017 time-based awards, Columbia Property Trust issued 139,825 shares of common stock to employees, which will vest ratably on each anniversary of the grant date over the next four years. For the 2017 performance-based awards, Columbia Property Trust granted 193,219 restricted share units (the "Performance-Based RSUs"), of which 75% will vest at the conclusion of a three-year performance period, and the remaining 25% will vest one year later. In addition, Columbia Property Trust granted 45,076 and 92,585 one-time transitional Performance-Based RSUs, which will fully vest at the conclusion of one-year and two-year performance periods, respectively. Upon reaching a predefined performance threshold, the payout of the Performance-Based RSUs will range from 50% to 150% of the Performance-Based RSUs granted, depending on Columbia Property Trust’s total stockholder return relative to the FTSE NAREIT Equity Office Index. All awards are expensed over the vesting period based on their estimated fair values. The fair-value of time-based awards is estimated using the closing stock price on the grant date; and fair values of performance-based awards are estimated using a Monte Carlo valuation method.
The 2018 LTIP awards are consistent with the 2017 LTIP awards. On January 1, 2018, Columbia Property Trust granted 128,486 shares of time-based stock awards to employees, which will vest ratably on each anniversary of the grant over the next four years. On January 1, 2018, Columbia Property Trust granted 176,702 Performance-Based RSUs, of which 75% will vest at the conclusion of a three-year performance period, and the remaining 25% will vest one year later. Consistent with the 2017 plan, the payout of the 2018 Performance-Based RSUs will be determined based on Columbia Property Trust’s total shareholder return relative to the FTSE NAREIT Equity Office Index.


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Below is a summary of the activity for the employeeshares of stock grantsissued under the LTIP follows:for the years ended December 31, 2017, 2016, and 2015:
 
Shares
(in thousands)
 
Weighted-Average,
Grant-Date Fair Value(1)
 
Shares
(in thousands)
 
Weighted-Average,
Grant-Date Fair Value(1)
Unvested shares as of January 1, 2014 
 $
Granted 144
 $24.82
Vested (39) $24.82
Forfeited (1) $24.82
Unvested shares as of December 31, 2014 104
 $24.82
Unvested shares as of January 1, 2015 104
 $24.82
Granted 123
 $24.40
 123
 $24.40
Vested (74) $24.60
 (74) $24.60
Forfeited (2) $24.56
 (2) $24.56
Unvested shares as of December 31, 2015 151

$24.59
 151
 $24.59
Granted 247
 $21.79
 247
 $21.79
Vested (138) $23.32
 (138) $23.32
Forfeited (4) $21.90
 (4) $21.90
Unvested shares as of December 31, 2016 256
(2) 
$22.62
 256

$22.62
Granted 333
 $21.59
Vested (193) $22.42
Forfeited (7) $21.81
Unvested shares as of December 31, 2017 389
(2) 
$21.85
(1) 
Columbia Property Trust determined the weighted-average grant-date fair value using the market closing price on the date of the grant.
(2) 
As of December 31, 2016,2017, Columbia Property Trust expects approximately 243,200370,000 of the 256,000389,000 unvested shares to ultimately vest, assuming a forfeiture rate of 5%, which was determined based on peer company data, adjusted for the specifics of the LTIP.
On January 1, 2017, Columbia Property Trust granted 135,921 shares of common stock to employees under the LTIP. Such awards are time based, and will will vest ratably on the anniversaryA summary of the grant overactivity for the next four years. Performance-based share awards were also made on January 1, 2017. The payout of these performance-based awards can range from 0% to 150%, depending on total shareholder return relative to the FTSE NAREIT Equity Office Index at the end of a three-year performance period. During the transition period, participants in the three-year performance awards will also receive interim awards with one and two-year performance periods. For the three-year awards, 75% of the shares earned will vest at the conclusion of the performance period, with the remaining 25% vesting one year later. The awards will be expensed over the vesting period, using the estimated fair value for each award. Time-based awards will be expensed using the grant date fair value, or closing price of the award on the grant date. Performance-based awards will be expensed over the vesting period at the estimated fair value of the grant date, as determined by the Monte Carlo valuation method.
On January 20, 2017, Columbia Property Trust granted 193,535 shares of common stock to employees, net of 17,938 shares withheld to settle the related tax liability,Performance-Based RSUs under the LTIP of which 25% vested upon grant, and the remaining shares will vest ratably, with the passage of time, on January 31, 2018, 2019, and 2020.follows:
  
Performance-Based RSU Awards
(in thousands)
 
Weighted-Average,
Grant-Date Fair Value(1)
Unvested performance-based share awards as of December 31, 2016 
 $
Granted 331
 $18.78
Vested 
 $
Forfeited (2) $19.01
Unvested performance-based share awards as of December 31, 2017 329
(2) 
$18.78
(1)
Columbia Property Trust determined the weighted-average grant-date fair value using the estimated fair value on the date of grant.
(2)
As of December 31, 2017, Columbia Property Trust expects approximately 303,000 of the 329,000 unvested performance-based restricted share units to ultimately vest, assuming a forfeiture rate of 8%, which was determined based on peer company data, adjusted for the specifics of the LTIP.


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Beginning in January 2014,Director Stock Grants
In May 2017, Columbia Property Trust pays quarterly installments of the independentbegan paying its directors' annual equity retainers by granting shares toon an annual basis for the independent directors, whichensuing period. From January 2014 through January 3, 2017, Columbia Property Trust paid these equity retainers in quarterly installments. The equity retainers vest at the time of grant. A summary of these grants, made under the LTIP, follows:
Date of Grant Shares 
Weighted-Average
Grant-Date Fair Value
 Shares 
Weighted-Average
Grant-Date Fair Value
2017 Director Grants:    
January 3, 2017 8,279
 $21.58
May 2, 2017 33,581
 $22.57
November 27, 2017(1)
 1,596
 $23.07
2016 Director Grants:        
January 4, 2016 7,439
 $23.00
 7,439
 $23.00
April 1, 2016 8,120
 $21.89
 8,120
 $21.89
July 1, 2016 8,158
 $21.52
 8,158
 $21.52
October 3, 2016 7,727
 $22.19
 7,727
 $22.19
2015 Director Grants:        
January 2, 2015 5,850
 $25.75
 5,850
 $25.75
April 1, 2015 4,995
 $27.16
 4,995
 $27.16
July 1, 2015 4,144
 $24.84
 4,144
 $24.84
October 1, 2015 4,571
 $23.40
 4,571
 $23.40
2014 Director Grants:    
January 21, 2014 3,344
 $24.82
April 1, 2014 2,968
 $27.22
July 1, 2014 3,016
 $25.78
October 1, 2014 4,960
 $23.89
(1)
In November 2017, a new director was appointed to the board of directors of Columbia Property Trust. The new director received a pro-rated annual equity retainer grant at appointment.
Stock-Based Compensation Expense
Columbia Property Trust incurred stock-based compensation expense related to the following events (in thousands):
2016 2015 20142017 2016 2015
Amortization of unvested LTIP awards$2,856
 $1,699
 $749
$4,098
 $2,856
 $1,699
Future employee awards(1)
1,006
 1,353
 866
2,509
 1,006
 1,353
Issuance of shares to independent directors696
 496
 360
973
 696
 496
Total stock-based compensation expense$4,558
 $3,548
 $1,975
$7,580
 $4,558
 $3,548
(1) 
These estimated future employeeReflects amortization of LTIP awards relate tofor service during the current period, tofor which shares will be grantedissued in January of the subsequent year, with 25% vesting on the date of grant, and the remaining 75% vesting ratably on January 31st of each of the following three years.future periods.
These expenses are included in general and administrative expenses in the accompanying consolidated statements of operations. There was $3.2were $8.1 million and $2.2$3.2 million of unrecognized compensation costs related to unvested awards under the LTIP as of December 31, 20162017 and December 31, 2015,2016, respectively. This amount will be amortized over the respective vesting period, ranging from one year to threefour years at the time of grant.
Authorized Shares
On July 1, 2014, Effective in 2017, Columbia Property Trust reduced the number of common shares authorizedchanged from 900,000,000an LTIP measured over a one-year performance period to 225,000,000, which is proportionally equal to the reduction in shares outstandingan LTIP measured over a three-year performance period and, as a result, of a reverse stock split, which occurredhas issued additional unvested shares in August 2013.2017.
Independent Director Stock Option Plan
Columbia Property Trust maintainspreviously maintained an independent director stock option plan that provides for grants of stock to be made to independent directors of Columbia Property Trust (the "Director Plan"). On April 24, 2008, the Conflicts Committee of the Board of Directors suspended the Director Plan in connection with the registration of a public offering of shares of its common stock in certain states, and no awards have been made under the Director Plan since that date. A total of 25,000 shares have beenwere authorized and reserved for issuance under the Director Plan.
Plan, which was suspended in April of 2008. Under the Director Plan, options to purchase 625 shares of common stock at $48.00 per share were granted upon initially becoming an independent director of Columbia Property Trust. Of theseappointment to the board and on each annual meeting date. All options 20% are exercisable immediately ongranted under the date of grant. AnDirector Plan have expired.


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additional 20% of these options become exercisable on each anniversary for four years following the date of grant. Additionally, effective on the date of each annual stockholder meeting, beginning in 2004, each independent director was granted options to purchase 250 additional shares of common stock at the greater of (1) $48.00 per share or (2) the fair market value (as defined in the Director Plan) on the last business day preceding the date of the annual stockholder meeting. These options are 100% exercisable two years after the date of grant. All options granted under the Director Plan expire no later than the tenth anniversary of the date of grant and may expire sooner if the independent director dies, is disabled, or ceases to serve as a director. In the event of a corporate transaction or other recapitalization event, the Conflicts Committee will adjust the number of shares, class of shares, exercise price, or other terms of the Director Plan to prevent dilution or enlargement of the benefits or potential benefits intended to be made available under the Director Plan or with respect to any option as necessary. No stock option may be exercised if such exercise would jeopardize Columbia Property Trust's status as a REIT under the Code, and no stock option may be granted if the grant, when combined with those issuable upon exercise of outstanding options or warrants granted to Columbia Property Trust's advisor, directors, officers, or any of their affiliates, would exceed 10% of Columbia Property Trust's outstanding shares. No option may be sold, pledged, assigned, or transferred by an independent director in any manner other than by will or the laws of descent or distribution.
A summary of stock option activity under the Director Plan during 20162017, 20152016, and 20142015, follows:
 Number 
Exercise
Price
 Exercisable Number 
Exercise
Price
 Exercisable
Outstanding as of December 31, 2013 7,375
 $48 7,375
Granted 
  
Expired (3,500)  
Outstanding as of December 31, 2014 3,875
 $48 3,875
 3,875
 $48.00
 3,875
Granted 
   
    
Expired (2,000)   (2,000)    
Outstanding as of December 31, 2015 1,875
 $48 1,875
 1,875
 $48.00
 1,875
Granted 
   
    
Expired (500)   (500)    
Outstanding as of December 31, 2016 1,375
 $48 1,375
 1,375
 $48.00
 1,375
Granted 
    
Expired (1,375)    
Outstanding as of December 31, 2017 
 $
 
Columbia Property Trust has evaluated the fair values of options granted under the Director Plan using the Black-Scholes-Merton model and concluded that such values are insignificant as of the end of the period presented. The weighted-average contractual remaining life for options that were exercisable as of December 31, 2016, was approximately 0.5 years.
9.    Operating Leases
Columbia Property Trust's real estate assets are leased to tenants under operating leases for which the terms vary, including certain provisions to extend the lease agreement, options for early terminations, subject to specified penalties, and other terms and conditions as negotiated. Columbia Property Trust retains substantially all of the risks and benefits of ownership of the real estate assets leased to tenants. Amounts required as security deposits vary depending upon the terms of the respective leases and the creditworthiness of the tenant; however, such deposits generally are not significant. Therefore, exposure to credit risk exists to the extent that the receivables exceed this amount. Security deposits related to tenant leases are included in accounts payable, accrued expenses, and accrued capital expenditures in the accompanying consolidated balance sheets.
Based on 20162017 annualized lease revenue, as defined, none of Columbia Property Trust's tenants represent more than 8%6% of Columbia Property Trust's portfolio. Tenants in business services, depository institutions, and legalengineering and management services each represent 17%23%, 16%11%, and 10%8%, respectively, of Columbia Property Trust's annualized lease revenue. Columbia Property Trust's properties are located primarily in nine statesNew York, San Francisco, Washington, D.C., and the District of Columbia.
Atlanta. As of December 31, 2016,2017, approximately 26%38%, 28%, and 25%14% of Columbia Property Trust's office properties are located in New York, San Francisco, and New York,Washington, D.C., respectively, based on annualized lease revenue.    


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The future minimum rental income from Columbia Property Trust's investment in real estate assets under noncancelable operating leases, excluding lease incentives, as of December 31, 2016,2017, is as follows (in thousands):
2017$282,330
2018283,944
$231,641
2019270,987
247,774
2020252,723
243,053
2021207,521
207,919
2022192,322
Thereafter1,324,548
1,440,917
Total$2,622,053
$2,563,626
As of December 31, 2016,2017, Columbia Property Trust has recognized lease incentive obligations of $69.0$66.3 million, which will be amortized against rental income over the 31-year30-year life of the related lease.


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10.     Supplemental Disclosures of Noncash Investing and Financing Activities
Outlined below are significant noncash investing and financing activities for the years ended December 31, 20162017, 20152016, and 20142015 (in thousands): 
Years ended December 31,Years Ended December 31,
2016 2015 20142017 2016 2015
Investment in real estate funded with other assets$1,442
 $27,000
 $3,807
$311
 $1,442
 $27,000
Deposits applied to sales of real estate$10,000
 $
 $
Other assets assumed upon acquisition$
 $7,785
 $2,493
$1,014
 $
 $7,785
Other liabilities assumed upon acquisition$
 $4,765
 $2,004
$268
 $
 $4,765
Real estate assets transferred to unconsolidated joint venture$
 $531,696
 $
$558,122
 $
 $531,696
Mortgage note transferred to unconsolidated joint venture$
 $325,000
 $
$
 $
 $325,000
Other assets transferred to unconsolidated joint venture$
 $37,987
 $
$43,700
 $
 $37,987
Other liabilities transferred to unconsolidated joint venture$
 $20,595
 $
$21,347
 $
 $20,595
Notes payable assumed at acquisition$
 $
 $203,000
Discount on issuance of bonds payable$1,309
 $494
 $
$
 $1,309
 $494
Amortization of discounts (premiums) on debt$267
 $(18) $396
$180
 $267
 $(18)
Market value adjustment to interest rate swaps that qualify for hedge accounting treatment$1,553
 $(1,570) $1,339
$1,786
 $1,553
 $(1,570)
Accrued capital expenditures and deferred lease costs$15,042
 $19,324
 $17,283
$25,069
 $15,042
 $19,324
Accrued dividends payable$36,727
 $37,354
 $
$23,961
 $36,727
 $37,354
Common stock issued to employees and directors, and amortized (net of income tax witholdings)$3,388
 $3,548
 $1,642
$5,764
 $3,388
 $3,548


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11.Income Taxes
Columbia Property Trust's income tax basis net income during 20162017, 20152016, and 20142015 (in thousands) follows:
2016 2015 20142017 2016 2015
GAAP basis financial statement net income attributable to the common stockholders of Columbia Property Trust, Inc.$84,281
 $44,619
 $92,635
$176,041
 $84,281
 $44,619
Increase (decrease) in net income resulting from:     
Increase (Decrease) in Net Income Resulting From:     
Depreciation and amortization expense for financial reporting purposes in excess of amounts for income tax purposes34,569
 81,559
 69,832
33,918
 34,569
 81,559
Rental income accrued for financial reporting purposes in excess of amounts for income tax purposes(26,900) (13,409) (8,437)(38,426) (26,900) (13,409)
Net amortization of above-/below-market lease intangibles for financial reporting purposes less than amounts for income tax purposes(9,013) (6,626) (9,394)(6,091) (9,013) (6,626)
Gain on interest rate swaps that do not qualify for hedge accounting treatment for financial reporting purposes in excess of amounts for income tax purposes
 (2,633) (4,945)
 
 (2,633)
Bad debt expense for financial reporting purposes less than amounts for income tax purposes(261) 5
 (1)(31) (261) 5
Income from unconsolidated joint ventures for financial reporting purchases in excess of amount for income tax purposes13,902
 
 
Gains or losses on disposition of real property for financial reporting purposes that are more favorable than amounts for income tax purposes(71,701) (117,857) (47,159)(126,770) (71,701) (117,857)
Other expenses for financial reporting purposes in excess of amounts for income tax purposes(2,707) 14,342
 31,991
11,331
 (2,707) 14,342
Income tax basis net income (loss), prior to dividends-paid deduction$8,268
 $
 $124,522
Income tax basis net income, prior to dividends-paid deduction$63,874
 $8,268
 $


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As of December 31, 20162017, the tax basis carrying value of Columbia Property Trust's total assets was approximately $4.5$4.6 billion. For income tax purposes, distributions to common stockholders are characterized as ordinary income, capital gains, or as a return of a stockholder's invested capital. Columbia Property Trust's distributions per common share are summarized as follows:
2016 2015 20142017 2016 2015
Ordinary income5.6% % 83.1%58.5% 5.6% %
Capital gains% % %% % %
Return of capital94.4% 100% 16.9%41.5% 94.4% 100.0%
Total100% 100% 100%100.0% 100.0% 100.0%
As of December 31, 20162017, returns for the calendar years 20122013 through 20162017 remain subject to examination by U.S. or various state tax jurisdictions.
No provisions for federal income taxes have been made in the accompanying consolidated financial statements, other than the provisions relating to the TRS Entities, as Columbia Property Trust made distributions in excess of taxable income for the periods presented. Columbia Property Trust is subject to certain state and local taxes related to property operations in certain locations, which have been provided for in the accompanying consolidated financial statements. The income taxes recorded by the TRS Entities for the years ended December 31, 20162017, 20152016, and 20142015, are as follows:
Years ended December 31,Years Ended December 31,
2016 2015 20142017 2016 2015
Federal income tax$255
 $17
 $318
$188
 $255
 $17
State income tax21
 25
 35
38
 21
 25
Total income tax$276
 $42
 $353
$226
 $276
 $42
As of December 31, 2017, Columbia Property Trust had a deferred tax asset of $205,000, and as of December 31, 2016, Columbia Property Trust had a deferred tax liability of $22,000, and as of December 31, 2015, Columbia Property Trust had a deferred tax asset of $235,000, which are included in prepaid expenses and other assets in the accompanying consolidated balance sheets.


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12.
Discontinued Operations
As a result of implementing ASU 2014-08 effective April 1, 2014, beginning in the second quarter of 2014, the operating results for properties sold are included in continuing operations. Amounts reclassified to discontinued operations in 2014 reflect post- closing adjustments and true ups related to the sale of 18 properties, which closed on November 5, 2013 (prior to the adoption of ASU 2014-08), for $521.5 million and resulted in a net loss of $0.4 million.
The following table shows the revenues and expenses reclassified to discontinued operations (in thousands).
 For the Year Ended December 31, 2014
Revenues: 
Rental income$4
Tenant reimbursements115
 119
Expenses:
Property operating costs(250)
Asset and property management fees7
General and administrative755
Total expenses512
Operating loss(393)
Other income (expense): 
Interest expense3
Loss from discontinued operations(390)
Loss on disposition of discontinued operations(1,627)
Loss from discontinued operations$(2,017)
13.    Earnings Per Share

The basic and diluted earnings-per-share computations and net income and income from continuing operations have been reduced for the dividends paid on unvested shares related to the LTIP grants, as described in Note 8, Equity. The following table reconciles the numerator for the basic and diluted earnings-per-share computations shown on the consolidated statements of income (in thousands):
 2016 2015 2014 2017 2016 2015
Net income $84,281
 $44,619
 $92,635
 $176,041
 $84,281
 $44,619
Distributions paid on unvested shares (314) (185) (128) (337) (314) (185)
Net income used to calculate basic and diluted earnings per share $83,967
 $44,434
 $92,507
 $175,704
 $83,967
 $44,434
The following table reconciles the denominator for the basic and diluted earnings-per-share computations shown on the consolidated statements of income (in thousands):
 2016 2015 2014 2017 2016 2015
Weighted-average common shares – basic 123,130
 124,757
 124,860
 120,795
 123,130
 124,757
Plus incremental weighted-average shares from time-vested conversions less assumed share repurchases:      
Plus Incremental Weighted-Average Shares From Time-Vested Conversions Less Assumed Share Repurchases:      
Previously granted LTIP awards, unvested 58
 33
 29
 116
 58
 33
Future LTIP awards 40
 57
 29
 248
 40
 57
Weighted-average common shares – diluted 123,228
 124,847
 124,918
 121,159
 123,228
 124,847


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14.13.    Quarterly Results (unaudited)(Unaudited)

Presented below is a summary of the unaudited quarterly financial information for the years ended December 31, 20162017 and 20152016(in (in thousands, except per-share data):
2016 2017
First Quarter Second Quarter  Third Quarter Fourth Quarter
First
Quarter
 Second Quarter Third Quarter Fourth Quarter
Revenues$126,579
 $127,930
  $113,266
  $105,768
 $82,156
  $74,857
 $60,362
  $71,625
Net income$6,697
 $13,286
(1) 
 $36,898
(2) 
 $27,400
(3) 
$74,722
(1) 
 $1,133
 $101,534
(2) 
 $(1,348)
Net income per share - basic$0.05
 $0.11
 $0.30
 $0.22
 
Net income per share - diluted$0.05
 $0.11
 $0.30
 $0.22
 
Net income per share basic
$0.61
 $0.01
 $0.84
 $(0.01)
Net income per share diluted
$0.61
 $0.01
 $0.84
 $(0.01)
Dividends declared per share$0.30
 $0.30
 $0.30
 $0.30
 $0.20
 $0.20
 $0.20
 $0.20
 2016
 
First
Quarter
 Second Quarter Third Quarter Fourth Quarter
Revenues$126,579
 $127,930
  $113,266
  $105,768
 
Net income$6,697
 $13,286
(3) 
 $36,898
(4) 
 $27,400
(5) 
Net income per share  basic
$0.05
 $0.11
  $0.30
  $0.22
 
Net income per share  diluted
$0.05
 $0.11
  $0.30
  $0.22
 
Dividends declared per share$0.30
 $0.30
  $0.30
  $0.30
 
(1)
Net income for the first quarter of 2017 includes gains on sales of real estate assets of $73.2 million related to the sales of real estate assets as described in Note 3, Real Estate Transactions.
(2)
Net income for the third quarter of 2017 includes gains on sales of real estate assets of $102.4 million related to the sales of real estate assets as described in Note 3, Real Estate Transactions.
(3) 
Net income for the second quarter of 2016 includes an early termination payment at 222 East 41st Street of $6.2 million.
(2)(4) 
Net income for the third quarter of 2016 includes gains on sales of real estate assets of $50.4 million related to the sales of real estate assets as described in Note 3, Real Estate Transactions; partially offset by losses on early extinguishment of debt of $18.9 million related to the early repayment of the 2018 Bonds Payable.
(3)(5) 
Net income for the fourth quarter of 2016 includes gains on sales of real estate assets of $22.2$22.2 million related to the sales of real estate assets as described in Note 3, Real Estate Transactions.

 2015
 
First
Quarter
 Second Quarter Third Quarter Fourth Quarter
Revenues$147,543
 $148,124
 $137,719
  $132,679
Net income$5,598
 $8,709
 $20,143
(1) 
 $10,169
Net income per share - basic$0.04
 $0.07
 $0.16
  $0.08
Net income per share - diluted$0.04
 $0.07
 $0.16
  $0.08
Dividends declared per share$0.30
 $0.30
 $0.30
  $0.30
(1)
Net income for the third quarter of 2015 includes gains on sales of real estate assets of $20.2 million related to the 11 Property Sale, partially offset by losses on early extinguishment of debt of $2.7 million.


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15.14. Segment Information
Columbia Property Trust establishes operating segments at the property level, and aggregates individual properties into reportable segments for geographic locations in which Columbia Property Trust has significant investments. Columbia Property Trust considers geographic location when evaluating its portfolio composition, and in assessing the ongoing operations and performance of its properties. As of December 31, 2016,2017, Columbia Property Trust had the following reportable segments:  New York, San Francisco, Atlanta, Washington, D.C., Boston, Los Angeles, and all other office markets. The all other office markets reportable segment consists of properties in similar low-barrier to entrylow-barrier-to-entry geographic locations in which Columbia Property Trust does not have a substantial presence and does not plan to make further investments. During the periods presented, there have been no material inter-segment transactions.
Net operating income ("NOI") is a non-GAAP financial measure and is not considered a measure of operating results or cash flows from operations under GAAP. NOI is the primary performance measure reviewed by management to assess operating performance of properties and is calculated by deducting operating expenses from operating revenues. Operating revenues include rental income, tenant reimbursements, hotel income, and other property income; and operating expenses include property and hotel operating costs. The NOI performance metric consists of only revenues and expenses directly related to real estate rental operations. NOI reflects property acquisitions and dispositions, occupancy levels, rental rate increases or decreases, and the recoverability of operating expenses. NOI, as Columbia Property Trust calculates it, may not be directly comparable to similarly titled, but differently calculated, measures for other REITs.
When assessing ongoing performance of our reportable segments, management does not evaluate assets orAsset information and capital expenditures by reportable segment. Additionally, expenses, such as depreciationsegment are not reported because Columbia Property Trust does not use these measures to assess performance. Depreciation and amortization expense, along with other expense and others included in the reconciliation of NOI to GAAP net income items, are reviewed by management on a consolidated basis, rather than by reportable segment.not allocated among segments.
The following table presents property operating revenues by geographic reportable segment (in thousands):
For the years ended December 31,For the Years Ended December 31,
2016 2015 20142017 2016 2015
New York(1)$117,235
 $97,643
 $56,539
$123,280
 $117,235
 $97,643
San Francisco(2)109,995
 112,696
 79,265
105,550
 109,995
 112,696
Atlanta36,742
 35,715
 53,879
37,803
 36,742
 35,715
Washington, D.C.(1)(3)
33,024
 62,766
 64,144
36,934
 33,024
 62,766
Boston11,796
 20,895
 18,356
11,559
 11,796
 20,895
Los Angeles7,443
 7,588
 7,685
7,462
 7,443
 7,588
All other office markets152,858
 207,367
 236,509
21,460
 152,858
 207,367
Total office segments469,093
 544,670
 516,377
344,048
 469,093
 544,670
Hotel22,958
 24,583
 23,223
1,328
 22,958
 24,583
Corporate(4)2,519
 872
 1,197
579
 397
 267
Total494,570
 570,125
 540,797
$345,955
 $492,448
 $569,520
Operating revenues included in loss from unconsolidated joint venture(21,027) (4,060) 
Total operating revenues$473,543
 $566,065
 $540,797
(1) 
Includes operating revenues for our49.5% of 114 Fifth Avenue based on Columbia Property Trust's ownership interest, in the Market Square buildings for all periods presented.  On October 28, 2015, we contributed the Market Square Buildings and related mortgage note to a joint venture, and sold a 49% interest in the joint venture to a third-party. As a result, effective October 28, 2015, we began recording our 51% interest in the Market Square joint venture using the equity method of accounting, and began reflecting our interest in thefrom July 6, 2017 through December 31, 2017. These operating revenues of the Market Square Buildingsare included in loss fromequity in income (loss) of unconsolidated joint ventureventures in the accompanying consolidated statements of operations.
(2)
Includes operating revenues for 100.0% of 333 Market Street and University Circle through July 5, 2017. Includes operating revenues for 77.5% of 333 Market Street and University Circle based on Columbia Property Trust's ownership interest, from July 6, 2017 through December 31, 2017, which are included in equity in income (loss) of unconsolidated joint ventures in the accompanying consolidated statements of operations.
(3)
Includes operating revenues for 100.0% of Market Square through October 28, 2015. Includes operating revenues for 51.0% of the Market Square buildings based on Columbia Property Trust's ownership interest, from October 28, 2015 through December 31, 2017; and includes operating revenues for 55.0% of 1800 M Street based on Columbia Property Trust's ownership interest, from October 11, 2017 through December 31, 2017, which are included in equity in income (loss) of unconsolidated joint ventures in the accompanying consolidated statements of operations. 
(4)
The amounts for 2016 and 2015 have been adjusted to conform with 2017 presentation by removing asset and property management fee income.


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A reconciliation of GAAP revenues to operating revenues is presented below (in thousands):
 For the Years Ended December 31,
 2017 2016 2015
Total revenues$289,000
 $473,543
 $566,065
Operating revenues included in income (loss) from unconsolidated joint ventures(1)
60,737
 21,027
 4,060
Asset and property management fee income(2)
(3,782) (2,122) (605)
Total property operating revenues$345,955
 $492,448
 $569,520
(1)
Columbia Property Trust records its interest in properties held through unconsolidated joint ventures using the equity method of accounting, and reflects its interest in the operating revenues of these properties in income (loss) from unconsolidated joint ventures in the accompanying consolidated statements of operations.
(2)
See Note 4, Unconsolidated Joint Ventures, of the accompanying consolidated financial statements.
The following table presents net operating income by geographic reportable segment (in thousands):
For the years ended December 31,For the Years Ended December 31,
2016 2015 20142017 2016 2015
New York(1)$70,038
 $54,692
 $29,678
$73,893
 $70,038
 $54,692
San Francisco(2)80,529
 83,826
 61,426
76,163
 80,529
 83,826
Atlanta32,939
 31,912
 50,182
33,603
 32,939
 31,912
Washington, D.C.(1)(3)
16,372
 36,958
 39,519
18,496
 16,372
 36,958
Boston5,114
 12,519
 14,674
5,380
 5,114
 12,519
Los Angeles4,523
 4,853
 5,211
4,529
 4,523
 4,853
All other office markets92,756
 129,199
 151,695
18,550
 92,756
 129,199
Total office segments302,271
 353,959
 352,385
230,614
 302,271
 353,959
Hotel3,988
 4,593
 4,299
(913) 3,988
 4,593
Corporate(4)1,964
 19
 21
(826) (158) (586)
Total308,223
 358,571
 356,705
$228,875
 $306,101
 $357,966
NOI included in loss from unconsolidated joint venture(9,732) (1,992) 
Total NOI$298,491
 $356,579
 $356,705
(1) 
Includes NOInet operating income for our49.5% of 114 Fifth Avenue based on Columbia Property Trust's ownership interest, from July 6, 2017 through December 31, 2017. This net operating income is included in the Market Square buildings for all periods presented. On October 28, 2015, we contributed the Market Square Buildings and related mortgage note to a joint venture, and sold a 49% interestequity in the joint venture to a third-party. As a result, effective October 28, 2015, we began recording our 51% interest in the Market Square joint venture using the equity methodincome (loss) of accounting, and began reflecting our interest in the NOI of the Market Square Buildings in loss from unconsolidated joint ventureventures in the accompanying consolidated statements of operations.
(2)
Includes net operating income for 100.0% of 333 Market Street and University Circle through July 5, 2017. Includes net operating income for 77.5% of 333 Market Street and University Circle based on Columbia Property Trust's ownership interest, from July 6, 2017 through December 31, 2017, which is included in equity in income (loss) of unconsolidated joint ventures in the accompanying consolidated statements of operations.
(3)
Includes net operating income for 100.0% of Market Square through October 28, 2015. Includes net operating income for 51.0% of the Market Square buildings based on Columbia Property Trust's ownership interest, from October 28, 2015 through December 31, 2017; and includes net operating income for 55.0% of 1800 M Street based on Columbia Property Trust's ownership interest, from October 11, 2017 through December 31, 2017. This net operating income is included in equity in income (loss) of unconsolidated joint ventures in the accompanying consolidated statements of operations.
(4)
The amounts for 2016 and 2015 have been adjusted to conform with 2017 presentation by removing asset and property management fee income.



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A reconciliation of GAAP net income to NOI is presented below (in thousands):
For the years ended December 31,For the Years Ended December 31,
2016 2015 20142017 2016 2015
Net income$84,281
 $44,619
 $92,635
$176,041
 $84,281
 $44,619
Depreciation108,543
 131,490
 117,766
80,394
 108,543
 131,490
Amortization56,775
 87,128
 78,843
32,403
 56,775
 87,128
General and administrative33,876
 29,683
 31,275
General and administrative corporate
34,966
 33,876
 29,683
General and administrative joint venture
1,454
 
 
Real estate acquisition costs
 3,675
 14,142

 
 3,675
Net interest expense67,538
 85,265
 75,681
58,187
 67,538
 85,265
Interest income from development authority bonds(7,200) (7,200) (7,200)(7,200) (7,200) (7,200)
Interest rate swap valuation adjustment
 (2,634) (4,946)
 
 (2,634)
Interest expense associated with interest rate swap
 2,642
 5,317

 
 2,642
Settlement of interest rate swap
 1,102
 

 
 1,102
Loss on early extinguishment of debt18,997
 3,149
 23
325
 18,997
 3,149
Income tax expense445
 378
 662
(213) 445
 378
Asset and property management fee income(3,782) (2,122) (605)
Adjustments included in loss from unconsolidated joint venture7,561
 1,142
 
31,818
 17,293
 3,134
Gains on sales of real estate assets(72,325) (23,860) (75,275)(175,518) (72,325) (23,860)
Amounts in discontinued operations


 2,652
Impairment loss
 
 25,130
Net operating income$298,491
 $356,579
 $356,705
$228,875
 $306,101
 $357,966
16.15.     Financial Information for Parent Guarantor, Other Guarantor Subsidiaries, and Non-Guarantor Subsidiaries
The 2026 Bonds Payable and the 2025 Bonds Payable (see Note 6, Bonds Payable) were issued by Columbia Property Trust OP, and are guaranteed by Columbia Property Trust. In accordance with SEC Rule 3-10(c), Columbia Property Trust includes herein condensed consolidating financial information in lieu of separate financial statements of the subsidiary issuer (Columbia Property Trust OP), as defined in the bond indentures, because all of the following criteria are met:


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(1)the subsidiary issuer (Columbia Property Trust OP) is 100% owned by the parent company guarantor (Columbia Property Trust);
(2)the guarantees are full and unconditional; and
(3)no other subsidiary of the parent company guarantor (Columbia Property Trust) guarantees the 2025 Bonds Payable or the 2018 Bonds Payable.
Columbia Property Trust uses the equity method with respect to its investment in subsidiaries included in its condensed consolidating financial statements. Columbia Property Trust has corrected the presentation of intercompany cash transfers between the REIT Parent and its subsidiaries in the consolidating statements of cash flow. Instead of showing one amount for intercompany transfers between each entity group, intercompany transfers are broken out by cash flow type (i.e. operating, investing, and financing) for all periods presented, consistent with the equity method of accounting. All such changes are eliminated in consolidation, and therefore do not impact Columbia Property Trust's consolidated financial statement totals. Management has concluded that the effect of this correction is not material to the consolidated financial statements. This change had the following impact to the condensed consolidating statement of cash flows for the years ended December 31, 2016:  increase to operating cash flows for the parent and issuer of $53.1 million and $136.7 million, respectively; and increase (decrease) in investing cash flows for the parent, issuer, and non-guarantors of $(281.8) million, $568.5 million and $603.7 million, respectively; and increase (decrease) in financing cash flows for the parent, issuer, and non-guarantors of $228.7 million, $(705.2) million, and $(603.7) million, respectively. This change had the following impact to the condensed consolidating statement of cash flows for the years ended December 31, 2015:  increase to operating cash flows for the parent of $15.7 million; and increase (decrease) in investing cash flows for the parent, issuer, and non-guarantors of $1,045.9 million, $(145.3) million and $(468.0) million, respectively; and increase (decrease) in financing cash flows for the parent, issuer, and non-guarantors of $(1,061.6) million, $145.3 million and $468.0 million, respectively. The impact to individual financial statement captions within the condensed consolidating statement of cash flows is footnoted below.
Set forth below are Columbia Property Trust's condensed consolidating balance sheets as of December 31, 20162017 and 20152016 (in thousands), as well as its condensed consolidating statements of operations and its condensed consolidating statements of comprehensive income for 2016, 2015, and 2014 (in thousands); and its condensed consolidating statements of cash flows for 2016, 2015, and 2014 (in thousands).


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comprehensive income for 2017, 2016, and 2015 (in thousands); and its condensed consolidating statements of cash flows for 2017, 2016, and 2015 (in thousands).
Condensed Consolidating Balance Sheets (in thousands)
As of December 31, 2016As of December 31, 2017
Columbia Property Trust
(Parent)
 Columbia Property Trust OP 
(the Issuer)
 
Non-
Guarantors
 
Consolidating
Adjustments
 Columbia Property Trust
(Consolidated)
Columbia Property Trust
(Parent)
 Columbia Property Trust OP 
(the Issuer)
 
Non-
Guarantors
 
Consolidating
Adjustments
 Columbia Property Trust
(Consolidated)
Assets:                  
Real estate assets, at cost:         
Real Estate Assets, at Cost:         
Land$
 $
 $751,351
 $
 $751,351
$
 $
 $825,208
 $
 $825,208
Buildings and improvements, net
 219
 2,120,931
 
 2,121,150

 2,110
 2,061,309
 
 2,063,419
Intangible lease assets, net
 
 193,311
 
 193,311

 
 199,260
 
 199,260
Construction in progress
 
 36,188
 
 36,188

 
 44,742
 
 44,742
Real estate assets held for sale, net
 34,956
 377,550
 
 412,506
Total real estate assets
 35,175
 3,479,331
 
 3,514,506

 2,110
 3,130,519
 
 3,132,629
Investment in unconsolidated joint venture
 127,346
 
 
 127,346
Investment in unconsolidated joint ventures
 943,241
 1
 
 943,242
Cash and cash equivalents174,420
 16,509
 25,156
 
 216,085
692
 5,079
 3,796
 
 9,567
Investment in subsidiaries2,047,922
 1,782,752
 
 (3,830,674) 
2,238,577
 1,186,594
 
 (3,425,171) 
Tenant receivables, net of allowance
 
 7,163
 
 7,163

 30
 2,098
 
 2,128
Straight-line rent receivable
 
 64,811
 
 64,811

 
 92,235
 
 92,235
Prepaid expenses and other assets317,153
 262,216
 15,593
 (570,687) 24,275
317,364
 336,598
 19,375
 (645,654) 27,683
Intangible lease origination costs, net
 
 54,279
 
 54,279

 
 42,959
 
 42,959
Deferred lease costs, net
 
 125,799
 
 125,799

 
 141,096
 
 141,096
Investment in development authority bonds
 
 120,000
 
 120,000

 
 120,000
 
 120,000
Other assets held for sale, net
 3,767
 41,814
 (52) 45,529
Total assets$2,539,495
 $2,227,765
 $3,933,946
 $(4,401,413) $4,299,793
$2,556,633
 $2,473,652
 $3,552,079
 $(4,070,825) $4,511,539
Liabilities:                  
Line of credit and notes payable, net$
 $447,643
 $704,585
 $(430,762) $721,466
$
 $899,168
 $715,327
 $(643,310) $971,185
Bonds payable, net
 692,972
 
 
 692,972

 693,756
 
 
 693,756
Accounts payable, accrued expenses, and accrued capital expenditures
 10,395
 120,633
 
 131,028
732
 10,325
 113,949
 (4) 125,002
Dividends payable36,727
 
 
 
 36,727
23,961
 
 
 
 23,961
Due to affiliates
 58
 1,534
 (1,592) 

 
 2,340
 (2,340) 
Deferred income
 
 19,694
 
 19,694
4
 81
 18,396
 
 18,481
Intangible lease liabilities, net
 
 33,375
 
 33,375

 
 27,218
 
 27,218
Obligations under capital leases
 
 120,000
 
 120,000

 
 120,000
 
 120,000
Liabilities held for sale, net
 2,651
 177,497
 (138,385) 41,763
Total liabilities36,727
 1,153,719
 1,177,318
 (570,739) 1,797,025
24,697
 1,603,330
 997,230
 (645,654) 1,979,603
Equity:                  
Total equity2,502,768
 1,074,046
 2,756,628
 (3,830,674) 2,502,768
2,531,936
 870,322
 2,554,849
 (3,425,171) 2,531,936
Total liabilities and equity$2,539,495
 $2,227,765
 $3,933,946
 $(4,401,413) $4,299,793
$2,556,633
 $2,473,652
 $3,552,079
 $(4,070,825) $4,511,539




F-38

Table of Contents
Index to Financial Statements

Condensed Consolidating Balance Sheets (in thousands)
As of December 31, 2015As of December 31, 2016
Columbia Property Trust
(Parent)
 Columbia Property Trust OP 
(the Issuer)
 
Non-
Guarantors
 
Consolidating
Adjustments
 Columbia Property Trust
(Consolidated)
Columbia Property Trust
(Parent)
 Columbia Property Trust OP 
(the Issuer)
 
Non-
Guarantors
 
Consolidating
Adjustments
 Columbia Property Trust
(Consolidated)
Assets:                  
Real estate assets, at cost:         
Real Estate Assets, at Cost:         
Land$
 $6,241
 $890,226
 $
 $896,467
$
 $
 $751,351
 $
 $751,351
Building and improvements, net
 28,913
 2,868,518
 
 2,897,431

 219
 2,120,931
 
 2,121,150
Intangible lease assets, net
 
 259,136
 
 259,136

 
 193,311
 
 193,311
Construction in progress
 917
 30,930
 
 31,847

 
 36,188
 
 36,188
Real estate assets held for sale, net
 34,956
 377,550
 
 412,506
Total real estate assets
 36,071
 4,048,810
 
 4,084,881

 35,175
 3,479,331
 
 3,514,506
Investment in unconsolidated joint venture
 118,695
 
 
 118,695
Investment in unconsolidated joint ventures
 127,346
 
 
 127,346
Cash and cash equivalents989
 14,969
 16,687
 
 32,645
174,420
 16,509
 25,156
 
 216,085
Investment in subsidiaries2,333,408
 1,901,581
 
 (4,234,989) 
2,047,922
 1,782,752
 
 (3,830,674) 
Tenant receivables, net of allowance
 52
 11,618
 
 11,670

 
 7,163
 
 7,163
Straight-line rent receivable
 1,311
 107,751
 
 109,062

 
 64,811
 
 64,811
Prepaid expenses and other assets317,151
 265,615
 26,153
 (573,071) 35,848
317,153
 262,216
 15,593
 (570,687) 24,275
Intangible lease origination costs, net
 
 77,190
 
 77,190

 
 54,279
 
 54,279
Deferred lease costs, net
 2,055
 86,072
 
 88,127

 
 125,799
 
 125,799
Investment in development authority
bonds

 
 120,000
 
 120,000

 
 120,000
 
 120,000
Other assets held for sale, net
 3,767
 41,814
 (52) 45,529
Total assets$2,651,548
 $2,340,349
 $4,494,281
 $(4,808,060) $4,678,118
$2,539,495
 $2,227,765
 $3,933,946
 $(4,401,413) $4,299,793
Liabilities:                  
Lines of credit and notes payable, net$
 $812,836
 $888,340
 $(570,605) $1,130,571
$
 $447,643
 $704,585
 $(430,762) $721,466
Bonds payable, net
 595,259
 
 
 595,259

 692,972
 
 
 692,972
Accounts payable, accrued expenses,
and accrued capital expenditures

 13,313
 85,446
 
 98,759

 10,395
 120,633
 
 131,028
Dividends payable37,354
 
 
 
 37,354
36,727
 
 
 
 36,727
Due to affiliates
 21
 2,445
 (2,466) 

 58
 1,534
 (1,592) 
Deferred income
 200
 24,614
 
 24,814

 
 19,694
 
 19,694
Intangible lease liabilities, net
 
 57,167
 
 57,167

 
 33,375
 
 33,375
Obligations under capital leases
 
 120,000
 
 120,000

 
 120,000
 
 120,000
Liabilities held for sale, net
 2,651
 177,497
 (138,385) 41,763
Total liabilities37,354
 1,421,629
 1,178,012
 (573,071) 2,063,924
36,727
 1,153,719
 1,177,318
 (570,739) 1,797,025
Equity:                  
Total equity2,614,194
 918,720
 3,316,269
 (4,234,989) 2,614,194
2,502,768
 1,074,046
 2,756,628
 (3,830,674) 2,502,768
Total liabilities and equity$2,651,548

$2,340,349

$4,494,281

$(4,808,060)
$4,678,118
$2,539,495

$2,227,765

$3,933,946

$(4,401,413)
$4,299,793


F-39

Table of Contents
Index to Financial Statements

Consolidating Statements of Operations (in thousands)
For the Year Ended December 31, 2016For the Year Ended December 31, 2017
Columbia Property Trust
(Parent)
 Columbia Property Trust OP
(the Issuer)
 
Non-
Guarantors
 
Consolidating
Adjustments
 Columbia Property Trust
(Consolidated)
Columbia Property Trust
(Parent)
 Columbia Property Trust OP
(the Issuer)
 
Non-
Guarantors
 
Consolidating
Adjustments
 Columbia Property Trust
(Consolidated)
Revenues:                  
Rental income$
 $3,622
 $362,947
 $(383) $366,186
$
 $51
 $257,368
 $(360) $257,059
Tenant reimbursements
 1,963
 67,807
 
 69,770

 (60) 23,571
 
 23,511
Hotel income
 
 22,661
 
 22,661

 
 1,339
 
 1,339
Asset and property management fee income1,908
 
 1,874
 
 3,782
Other property income980
 
 14,352
 (406) 14,926

 
 3,327
 (18) 3,309
980
 5,585
 467,767
 (789) 473,543
1,908
 (9) 287,479
 (378) 289,000
Expenses:                  
Property operating costs
 3,209
 152,142
 (383) 154,968

 308
 87,857
 (360) 87,805
Hotel operating costs
 
 18,686
 
 18,686

 
 2,089
 
 2,089
Asset and property management fees:         
Asset and Property Management Fee Expenses:         
Related-party
 154
 
 (154) 

 3
 
 (3) 
Other
 
 1,415
 
 1,415

 
 918
 
 918
Depreciation
 2,760
 105,783
 
 108,543

 869
 79,525
 
 80,394
Amortization
 364
 56,411
 
 56,775

 5
 32,398
 
 32,403
General and administrative154
 8,566
 25,408
 (252) 33,876
General and administrative corporate
259
 9,048
 25,674
 (15) 34,966
General and administrative joint ventures

 
 1,454
 
 1,454
154
 15,053
 359,845
 (789) 374,263
259
 10,233
 229,915
 (378) 240,029
Real estate operating income (loss)826
 (9,468) 107,922
 
 99,280
Other income (expense):         
1,649
 (10,242) 57,564
 
 48,971
Other Income (Expense):         
Interest expense
 (46,797) (50,302) 29,490
 (67,609)
 (44,259) (38,238) 21,981
 (60,516)
Interest and other income14,268
 15,272
 7,238
 (29,490) 7,288
16,535
 7,762
 7,213
 (21,981) 9,529
Loss on early extinguishment of debt
 (18,987) (10) 
 (18,997)
 
 (325) 
 (325)
14,268
 (50,512) (43,074) 
 (79,318)16,535
 (36,497) (31,350) 
 (51,312)
Income (loss) before income tax expense and unconsolidated joint venture15,094
 (59,980) 64,848
 
 19,962
Income (loss) before income taxes, unconsolidated entities, and gains on sales of real estate assets18,184
 (46,739) 26,214
 
 (2,341)
Income tax expense
 (20) (425) 
 (445)
 (1) 214
 
 213
Income (loss) from unconsolidated entities69,187
 113,105
 
 (189,853) (7,561)157,857
 198,620
 
 (353,826) 2,651
Income before gains on sales of real estate assets84,281
 53,105
 64,423
 (189,853) 11,956
176,041
 151,880
 26,428
 (353,826) 523
Gains on sales of real estate assets
 
 72,325
 
 72,325

 11,050
 164,468
 
 175,518
Net income$84,281

$53,105

$136,748

$(189,853)
$84,281
$176,041

$162,930

$190,896

$(353,826)
$176,041






F-40

Table of Contents
Index to Financial Statements

Consolidating Statements of Operations (in thousands)
For the Year Ended December 31, 2015For the Year Ended December 31, 2016
Columbia Property Trust
(Parent)
 Columbia Property Trust OP
(the Issuer)
 
Non-
Guarantors
 
Consolidating
Adjustments
 Columbia Property Trust
(Consolidated)
Columbia Property Trust
(Parent)
 Columbia Property Trust OP
(the Issuer)
 
Non-
Guarantors
 
Consolidating
Adjustments
 Columbia Property Trust
(Consolidated)
Revenues:                  
Rental income$
 $2,662
 $433,763
 $(377) $436,048
$
 $3,622
 $362,947
 $(383) $366,186
Tenant reimbursements
 1,316
 98,339
 
 99,655

 1,963
 67,807
 
 69,770
Hotel income
 
 24,309
 
 24,309

 
 22,661
 
 22,661
Asset and property management fee income574
 
 1,548
 
 2,122
Other property income171
 
 6,215
 (333) 6,053
406
 
 12,804
 (406) 12,804
171

3,978

562,626

(710)
566,065
980

5,585

467,767

(789)
473,543
Expenses:                  
Property operating costs
 3,065
 185,390
 (377) 188,078

 3,209
 152,142
 (383) 154,968
Hotel operating costs
 
 19,615
 
 19,615

 
 18,686
 
 18,686
Asset and property management fees:         
Asset and Property Management Fee Expenses:         
Related-party
 100
 
 (100) 

 154
 
 (154) 
Other
 
 1,816
 
 1,816

 
 1,415
 
 1,415
Depreciation
 2,571
 128,919
 
 131,490

 2,760
 105,783
 
 108,543
Amortization
 237
 86,891
 
 87,128

 364
 56,411
 
 56,775
General and administrative152
 8,754
 21,010
 (233) 29,683
Acquisition expenses
 11
 3,664
 
 3,675
General and administrative corporate
154
 8,566
 25,408
 (252) 33,876
152

14,738

447,305

(710) 461,485
154

15,053

359,845

(789) 374,263
Real estate operating income (loss)19

(10,760)
115,321



104,580
Other income (expense):         
826

(9,468)
107,922



99,280
Other Income (Expense):         
Interest expense
 (44,919) (67,076) 26,699
 (85,296)
 (46,797) (50,302) 29,490
 (67,609)
Interest and other income14,141
 12,565
 7,247
 (26,699) 7,254
14,268
 15,272
 7,238
 (29,490) 7,288
Loss on interest rate swaps
 (1,101) (9) 
 (1,110)
Loss on early extinguishment of debt
 (1,050) (2,099) 
 (3,149)
 (18,987) (10) 
 (18,997)
14,141

(34,505)
(61,937)


(82,301)14,268

(50,512)
(43,074)


(79,318)
Income (loss) before income tax expense and unconsolidated entities14,160

(45,265)
53,384



22,279
Income (loss) before income taxes, unconsolidated entities, and gains on sales of real estate assets15,094

(59,980)
64,848



19,962
Income tax expense
 (25) (353) 
 (378)
 (20) (425) 
 (445)
Income (loss) from unconsolidated entities30,459
 59,165
 
 (90,766) (1,142)69,187
 113,105
 
 (189,853) (7,561)
Income before gains (loss) on sales of real estate assets44,619
 13,875
 53,031
 (90,766) 20,759
84,281
 53,105
 64,423
 (189,853) 11,956
Gains (loss) on sale of real estate assets
 (19) 23,879
 
 23,860
Gains (loss) on sales of real estate assets
 
 72,325
 
 72,325
Net income$44,619

$13,856

$76,910

$(90,766)
$44,619
$84,281

$53,105

$136,748

$(189,853)
$84,281


F-41

Table of Contents
Index to Financial Statements

Consolidating Statements of Operations (in thousands)
For the Year Ended December 31, 2014For the Year Ended December 31, 2015
Columbia Property Trust
(Parent)
 Columbia Property Trust OP
(the Issuer)
 
Non-
Guarantors
 
Consolidating
Adjustments
 Columbia Property Trust
(Consolidated)
Columbia Property Trust
(Parent)
 Columbia Property Trust OP
(the Issuer)
 
Non-
Guarantors
 
Consolidating
Adjustments
 Columbia Property Trust
(Consolidated)
Revenues:                  
Rental income$
 $1,150
 $413,752
 $(361) $414,541
$
 $2,662
 $433,763
 $(377) $436,048
Tenant reimbursements
 222
 95,153
 
 95,375

 1,316
 98,339
 
 99,655
Hotel income
 
 22,885
 
 22,885

 
 24,309
 
 24,309
Asset and property management fee income171
 
 434
 
 605
Other property income
 
 8,220
 (224) 7,996

 
 5,781
 (333) 5,448

 1,372
 540,010
 (585) 540,797
171
 3,978
 562,626
 (710) 566,065
Expenses:                  
Property operating costs
 2,716
 161,367
 (361) 163,722

 3,065
 185,390
 (377) 188,078
Hotel operating costs
 
 18,792
 
 18,792

 
 19,615
 
 19,615
Asset and property management fees:         
Asset and Property Management Fee Expenses:         
Related-party
 17
 
 (17) 

 100
 
 (100) 
Other
 
 2,258
 
 2,258

 
 1,816
 
 1,816
Depreciation
 1,795
 115,971
 
 117,766

 2,571
 128,919
 
 131,490
Amortization
 121
 78,722
 
 78,843

 237
 86,891
 
 87,128
Impairment loss on real estate assets
 
 25,130
 
 25,130
General and administrative149
 9,701
 21,632
 (207) 31,275
Acquisition fees
 
 14,142
 
 14,142
General and administrative corporate
152
 8,754
 21,010
 (233) 29,683
Acquisition expenses
 11
 3,664
 
 3,675
149
 14,350
 438,014
 (585) 451,928
152
 14,738
 447,305
 (710) 461,485
Real estate operating income (loss)(149) (12,978) 101,996
 
 88,869
Other income (expense):         
19
 (10,760) 115,321
 
 104,580
Other Income (Expense):         
Interest expense
 (30,271) (64,105) 18,665
 (75,711)
 (44,919) (67,076) 26,699
 (85,296)
Interest and other income7,969
 10,724
 7,247
 (18,665) 7,275
14,141
 12,565
 7,247
 (26,699) 7,254
Loss on interest rate swaps
 
 (371) 
 (371)
 (1,101) (9) 
 (1,110)
Loss on early extinguishment of debt
 
 (23) 
 (23)
 (1,050) (2,099) 
 (3,149)
Income from equity investment84,815
 113,976
 
 (198,791) 
92,784

94,429

(57,252)
(198,791)
(68,830)14,141

(34,505)
(61,937)


(82,301)
Income before income tax expense and gains on sales of real estate assets92,635
 81,451
 44,744
 (198,791) 20,039
Income before income taxes, unconsolidated entities, and gains on sales of real estate assets14,160
 (45,265) 53,384
 
 22,279
Income tax expense
 (4) (658) 
 (662)
 (25) (353) 
 (378)
Income (loss) from unconsolidated entities30,459
 59,165
 
 (90,766) (1,142)
Income before gains on sales of real estate assets92,635
 81,447
 44,086
 (198,791) 19,377
44,619
 13,875
 53,031
 (90,766) 20,759
Gains on sales of real estate assets
 
 75,275
 
 75,275

 (19) 23,879
 
 23,860
92,635

81,447

119,361

(198,791)
94,652
Discontinued operations:         
Operating loss from discontinued operations
 
 (390) 
 (390)
Loss on disposition of discontinued operations
 
 (1,627) 
 (1,627)
Loss from discontinued operations



(2,017)

 (2,017)
Net income$92,635
 $81,447
 $117,344
 $(198,791) $92,635
$44,619
 $13,856
 $76,910
 $(90,766) $44,619


F-42

Table of Contents
Index to Financial Statements

Consolidating Statements of Comprehensive Income (in thousands)
 For the Year Ended December 31, 2017
 Columbia Property Trust
(Parent)
 Columbia Property Trust OP
(the Issuer)
 
Non-
Guarantors
 
Consolidating
Adjustments
 Columbia Property Trust
(Consolidated)
Net income$176,041
 $162,930
 $190,896
 $(353,826) $176,041
Market value adjustment to interest rate swap1,786
 1,786
 
 (1,786) 1,786
Comprehensive income$177,827
 $164,716
 $190,896
 $(355,612) $177,827
 For the Year Ended December 31, 2016
 Columbia Property Trust
(Parent)
 Columbia Property Trust OP
(the Issuer)
 
Non-
Guarantors
 
Consolidating
Adjustments
 Columbia Property Trust
(Consolidated)
Net income$84,281
 $53,105
 $136,748
 $(189,853) $84,281
Market value adjustment to interest rate swap1,553
 1,553
 
 (1,553) 1,553
Comprehensive income$85,834

$54,658

$136,748

$(191,406)
$85,834
 For the Year Ended December 31, 2015
 Columbia Property Trust
(Parent)
 Columbia Property Trust OP
(the Issuer)
 
Non-
Guarantors
 
Consolidating
Adjustments
 Columbia Property Trust
(Consolidated)
Net income$44,619
 $13,856
 $76,910
 $(90,766) $44,619
Market value adjustment to interest rate swap(1,570) (1,570) 
 1,570
 (1,570)
Settlement of interest rate swap1,102
 1,102
 
 (1,102) 1,102
Comprehensive income$44,151
 $13,388
 $76,910
 $(90,298) $44,151
 For the Year Ended December 31, 2014
 Columbia Property Trust
(Parent)
 Columbia Property Trust OP
(the Issuer)
 
Non-
Guarantors
 
Consolidating
Adjustments
 Columbia Property Trust
(Consolidated)
Net income$92,635
 $81,447
 $117,344
 $(198,791) $92,635
Market value adjustment to interest rate swap1,339
 1,339
 
 (1,339) 1,339
Comprehensive income$93,974
 $82,786
 $117,344
 $(200,130) $93,974




F-43

Table of Contents
Index to Financial Statements

Consolidating Statements of Cash Flows (in thousands)

For the Year Ended December 31, 2016For the Year Ended December 31, 2017
Columbia Property Trust
(Parent)
 Columbia Property Trust OP
(the Issuer)
 
Non-
Guarantors
 Columbia Property Trust
(Consolidated)
Columbia Property Trust
(Parent)
 Columbia Property Trust OP
(the Issuer)
 
Non-
Guarantors
 Consolidating Adjustments Columbia Property Trust
(Consolidated)
Cash flows from operating activities$875
 $(49,902) $242,118
 $193,091
$3,966
 $(46,268) $104,226
 $
 $61,924
Cash flows from investing activities:       
Net proceeds from sale of real estate603,732
 
 10,000
 613,732
Cash Flows From Investing Activities:         
Net proceeds from the sale of real estate
 49,531
 688,100
 
 737,631
Investment in real estate and related assets
 (2,157) (69,750) (71,907)
 (2,203) (716,093) 
 (718,296)
Investment in unconsolidated joint venture
 (16,212) 
 (16,212)
Investment in unconsolidated joint ventures
 (369,043) 
 
 (369,043)
Distributions in excess of earnings from unconsolidated joint ventures
 1,985
 
 
 1,985
Investments in subsidiaries(8,671) (97,505) 
 106,176
 
Net cash provided by (used in) investing activities603,732
 (18,369) (59,750)
525,613
(8,671) (417,235) (27,993)
106,176
 (347,723)
Cash flows from financing activities:       
Cash Flows From Financing Activities:         
Borrowings, net of fees781,416
 (839) 
 780,577

 781,731
 
 
 781,731
Repayments(1,090,000) 
 (5,460) (1,095,460)
 (331,000) (202,427) 
 (533,427)
Debt prepayment and interest rate settlement costs paid(17,921) 
 
 (17,921)
Redemptions of common stock(53,986) 
 
 (53,986)(59,462) 
 
 
 (59,462)
Distributions(148,474) 
 
 (148,474)(109,561) 1,342
 104,834
 (106,176) (109,561)
Intercompany transfers, net97,789
 70,650
 (168,439) 
Net cash provided by (used in) financing activities(431,176) 69,811
 (173,899)
(535,264)(169,023) 452,073
 (97,593)
(106,176) 79,281
Net increase (decrease) in cash and cash equivalents173,431
 1,540
 8,469

183,440
Net decrease in cash and cash equivalents(173,728) (11,430) (21,360)

 (206,518)
Cash and cash equivalents, beginning of period989
 14,969
 16,687
 32,645
174,420
 16,509
 25,156
 
 216,085
Cash and cash equivalents, end of period$174,420
 $16,509
 $25,156

$216,085
$692
 $5,079
 $3,796

$
 $9,567



F-44

Table of Contents
Index to Financial Statements

Consolidating Statements of Cash Flows (in thousands)
For the Year Ended December 31, 2015For the Year Ended December 31, 2016
Columbia Property Trust
(Parent)
 Columbia Property Trust OP
(the Issuer)
 
Non-
Guarantors
 Consolidating Adjustments Columbia Property Trust
(Consolidated)
Columbia Property Trust
(Parent)
 Columbia Property Trust OP
(the Issuer)
 
Non-
Guarantors
 Consolidating Adjustments Columbia Property Trust
(Consolidated)
Cash flows from operating activities$26
 $(50,601) $273,655
 $
 $223,080
$53,980
 $86,846
 $242,118
 $(189,853) $193,091
Cash flows from investing activities:         
Net proceeds from sale of real estate72,353
 524,381
 
 
 596,734
Cash Flows From Investing Activities:         
Net proceeds from the sale of real estate(1)

 
 613,732
 
 613,732
Investment in real estate and related assets(57,198) (1,007,511) (103,224) 
 (1,167,933)
 (2,157) (69,750) 
 (71,907)
Investment in unconsolidated joint venture
 (5,500) 
 
 (5,500)
Investments in subsidiaries(1,065,695) 
 
 1,065,695
 
Net cash provided by (used in) investing activities(1,050,540)
(488,630)
(103,224) 1,065,695

(576,699)
Cash flows from financing activities:         
Investment in unconsolidated joint ventures
 (16,212) 
 
 (16,212)
Distributions from subsidiaries(2)
321,911
 568,480
 
 (890,391) 
Net cash provided by investing activities321,911

550,111

543,982
 (890,391)
525,613
Cash Flows From Financing Activities:         
Borrowings, net of fees(3)
 2,223,778
 
 
 2,223,778

 780,577
 
 
 780,577
Repayments(4)
 (1,518,000) (336,512) 
 (1,854,512)
 (1,051,000) (44,460) 
 (1,095,460)
Prepayments to settle debt and interest rate swap(5)
 (1,102) (2,063) 
 (3,165)
 (17,921) 
 
 (17,921)
Redemptions of common stock(17,057) 
 
 
 (17,057)(53,986) 
 
 
 (53,986)
Distributions(6)(112,570) 
 
 
 (112,570)(148,474) (347,073) (733,171) 1,080,244
 (148,474)
Intercompany transfers1,061,642
 (160,980) 165,033
 (1,065,695) 
Net cash provided by (used in) financing activities932,015
 543,696
 (173,542) (1,065,695) 236,474
Net increase (decrease) in cash and cash equivalents(118,499) 4,465
 (3,111) 
 (117,145)
Net cash used in financing activities(202,460) (635,417) (777,631) 1,080,244
 (535,264)
Net increase in cash and cash equivalents173,431
 1,540
 8,469
 
 183,440
Cash and cash equivalents, beginning of period119,488
 10,504
 19,798
 
 149,790
989
 14,969
 16,687
 
 32,645
Cash and cash equivalents, end of period$989
 $14,969
 $16,687
 $
 $32,645
$174,420
 $16,509
 $25,156
 $
 $216,085
(1)
Net proceeds from the sale of real estate increased (decreased) by $(603.7) million and $603.7 million for the parent and non-guarantors, respectively.
(2)
Distributions from subsidiaries increased (decreased) by $321.9 million, $568.5 million, and $(890.4) million for the parent, issuer, and eliminations, respectively.
(3)
Borrowings, net of fees, increased (decreased) by $(781.4) million and $781.4 million for the parent and issuer, respectively.
(4)
Repayments increased (decreased) by $1,090.0 million, $(1,051.0) million, and $(39.0) million for the parent, issuer, and non-guarantors respectively.
(5)
Prepayments to settle debt and interest rate swap increased (decreased) by $17.9 million and $(17.9) million for the parent and issuer, respectively.
(6)
Distributions (increased) decreased by $(347.1) million, $(733.2) million, and $1,080.3 million, for the issuer, non-guarantors, and eliminations, respectively. The intercompany transfers, net line item is no longer presented based on the changes to the other line items described herein.



F-45

Table of Contents
Index to Financial Statements

 For the Year Ended December 31, 2014
 Columbia Property Trust
(Parent)
 Columbia Property Trust OP
(the Issuer)
 
Non-
Guarantors
 Consolidating Adjustments Columbia Property Trust
(Consolidated)
Cash flows from operating activities$(122) $(38,618) $275,646
 $
 $236,906
Cash flows from investing activities:         
Net proceeds from sale of real estate
 418,207
 
 
 418,207
Investments in real estate and related assets(5,000) (366,380) (70,615) 
 (441,995)
Investments in subsidiaries67,403
 
 
 (67,403) 
Net cash provided by (used in) investing activities62,403

51,827

(70,615)
(67,403)
(23,788)
Cash flows from financing activities:         
Borrowings, net of fees
 282,807
 (1,289) 
 281,518
Repayments
 (283,000) (11,739) 
 (294,739)
Distributions(149,962) 
 
 
 (149,962)
Intercompany transfers153,847
 (23,220) (198,030) 67,403
 
Net cash provided by (used in) financing activities3,885
 (23,413) (211,058) 67,403
 (163,183)
Net increase (decrease) in cash and cash equivalents66,166
 (10,204) (6,027) 
 49,935
Cash and cash equivalents, beginning of period53,322
 20,708
 25,825
 
 99,855
Cash and cash equivalents, end of period$119,488
 $10,504
 $19,798
 $
 $149,790
 For the Year Ended December 31, 2015
 Columbia Property Trust
(Parent)
 Columbia Property Trust OP
(the Issuer)
 
Non-
Guarantors
 Consolidating Adjustments Columbia Property Trust
(Consolidated)
Cash flows from operating activities$15,743
 $(50,601) $273,655
 $(15,717) $223,080
Cash Flows From Investing Activities:         
Net proceeds from the sale of real estate(1)

 
 596,734
 
 596,734
Investments in real estate and related assets(2)

 
 (1,167,933) 
 (1,167,933)
Investment in unconsolidated joint ventures
 (5,500) 
 
 (5,500)
Investments in subsidiaries(3)
(4,615) (628,393) 
 633,008
 
Net cash used in investing activities(4,615)
(633,893)
(571,199)
633,008

(576,699)
Cash Flows From Financing Activities:         
Borrowings, net of fees(3)

 2,223,778
 
 
 2,223,778
Repayments
 (1,518,000) (336,512) 
 (1,854,512)
Prepayments to settle debt and interest rate swap
 (1,102) (2,063) 
 (3,165)
Redemptions of common stock(17,057) 
 
 
 (17,057)
Distributions(4)
(112,570) (15,717) 633,008
 (617,291) (112,570)
Net cash provided by (used in) financing activities(129,627) 688,959
 294,433
 (617,291) 236,474
Net increase (decrease) in cash and cash equivalents(118,499) 4,465
 (3,111) 
 (117,145)
Cash and cash equivalents, beginning of period119,488
 10,504
 19,798
 
 149,790
Cash and cash equivalents, end of period$989
 $14,969
 $16,687
 $
 $32,645
(1)
Net proceeds from the sales of real estate increased (decreased) by $(72.4) million, $(524.4) million, and $596.7 million for the parent, issuer, and non-guarantors, respectively.
(2)
Investments in real estate and related assets increased (decrease) by $57.2 million, $1,007.5 million, and $(1,064.7) million for the parent, issuer, and non-guarantors, respectively.
(3)
Investments in subsidiaries increased (decreased) by $1,061.1 million, $(628.4) million, and $(432.7) million for the parent, issuer, and eliminations, respectively.
(4)
Distributions (increased) decreased by $(15.7) million, $633.0 million, and $(617.3) million, for the issuer, non-guarantors, and eliminations, respectively. The intercompany transfers, net line item is no longer presented based on the changes to the other line items described herein.

17.16.Subsequent Events
Columbia Property Trust has evaluated subsequent events in connection with the preparation of its consolidated financial statements and notes thereto included in this report on Form 10-K and noted the following items in addition to those disclosed elsewhere in this report:
Property Dispositions
As further described in Note 3, Real Estate Transactions, Columbia Property Trust closed on the sale of the Houston Properties on January 6, 2017, and closed on the sale of the Key Center Tower and the Key Center Marriott on January 31, 2017.
Dividends
On January 5, 2017, Columbia Property Trust paid an aggregate amount of $36.7 million in dividends for the fourth quarter of 2016 to shareholders of record on December 1, 2016.
On February 8, 2017,7, 2018, the board of directors declared dividends for the first quarter of 20172018 in the amount of $0.20 per share, payable on March 15, 2017,2018, to stockholders of record on March 1, 2017.2018.

On February 1, 2018, Columbia Property Trust sold an additional 22.5% interest in University Circle and 333 Market Street to its joint venture partner, Allianz, as described in Note 3, Real Estate Transactions.
On January 5, 2018, Columbia Property Trust paid an aggregate amount of $24.0 million in dividends for the fourth quarter of 2017 to shareholders of record on December 1, 2017.


F-46

Table of Contents
Index to Financial Statements

Columbia Property Trust, Inc.
Schedule III – Real Estate Assets and Accumulated Depreciation and Amortization
December 31, 2016 (in thousands)
        Initial Costs Costs Capitalized Subsequent to Acquisition Gross Amount at Which Carried at
December 31, 2016
 Accumulated Depreciation and Amortization Date of Construction   
Life on Which Depreciation and Amortization is Computed(f)
Description Location Owner- ship % Encum-brances Land Buildings and Improvements Total  Land Buildings and Improvements 
Total(e)
   Date Acquired 
ONE GLENLAKE PARKWAY Atlanta, GA 100% $26,315
  
$5,846
 $66,681
 $72,527
 $607
 $5,934
 $67,200
 $73,134
 $20,276
 2003 6/25/2004 0 to 40 years
80 M STREET Washington, D.C. 100% None 26,248
 76,269
 102,517
 (7,458) 26,806
 68,253
 95,059
 22,689
 2001 6/29/2004 0 to 40 years
UNIVERSITY CIRCLE East Palo Alto, CA 100% None
 27,493
 278,288
 305,781
 (18,754) 27,756
 259,271
 287,027
 77,916
 2001/2002/ 2003 9/20/2005 0 to 40 years
263 SHUMAN BOULEVARD Naperville, IL 100% $49,000
 7,142
 41,535
 48,677
 6,890
 7,233
 48,334
 55,567
 23,935
 1986 7/20/2006 0 to 40 years
95 COLUMBUS(a)
 Jersey City, NJ 100% None
 29,061
 141,544
 170,605
 12,217
 29,712
 153,110
 182,822
 54,335
 1989 10/31/2006 0 to 40 years
PASADENA CORPORATE PARK Pasadena, CA 100% None
 53,099
 59,630
 112,729
 (1,053) 53,099
 58,577
 111,676
 15,703
 1965/2000/ 2002/2003 7/11/2007 0 to 40 years
222 EAST 41ST STREET New York City, NY 100% None
(b) 

 324,520
 324,520
 (26,006) 
 298,514
 298,514
 61,749
 2001 8/17/2007 0 to 45 years
LINDBERGH CENTER Atlanta, GA 100% None
(b) 

 262,468
 262,468
 3,252
 
 265,720
 265,720
 69,267
 2002 7/1/2008 0 to 40 years
THREE GLENLAKE BUILDING Atlanta, GA 100% None
(c) 
7,517
 88,784
 96,301
 891
 8,055
 89,137
 97,192
 24,751
 2008 7/31/2008 0 to 40 years
CRANBERRY WOODS DRIVE Cranberry Township, PA 100% None
 15,512
 173,062
 188,574
 (6,243) 15,512
 166,819
 182,331
 40,581
 2009/2010 6/1/2010 0 to 40 years
333 MARKET STREET San Francisco, CA 100% None
  
114,483
 292,840
 407,323
 2
 114,485
 292,840
 407,325
 36,568
 1979 12/21/2012 0 to 40 years
221 MAIN STREET San Francisco, CA 100% $73,000
 60,509
 174,629
 235,138
 8,759
 60,509
 183,388
 243,897
 22,071
 1974 4/22/2014 0 to 40 years
650 CALIFORNIA STREET San Francisco, CA 100% $126,288
 75,384
 240,441
 315,825
 1,207
 75,384
 241,648
 317,032
 26,153
 1964 9/9/2014 0 to 40 years
315 PARK AVENUE SOUTH New York, NY 100% None
 119,633
 249,510
 369,143
 4,317
 119,633
 253,827
 373,460
 22,413
 1910 1/7/2015 0 to 40 years
116 HUNTINGTON AVENUE Boston, MA 100% None
(d) 

 116,290
 116,290
 42,170
 
 158,460
 158,460
 10,791
 1991 1/8/2015 0 to 40 years
229 WEST 43RD STREET New York, NY 100% None
 207,233
 292,991
 500,224
 794
 207,233
 293,785
 501,018
 19,036
 1912/1924/ 1932/1947 8/4/2015 0 to 40 years
    TOTAL CONSOLIDATED REAL ESTATE ASSETS - HELD FOR USE 749,160
 2,879,482
 3,628,642
 21,592
 751,351
 2,898,883
 3,650,234
 548,234
      
HELD FOR SALE AT DECEMBER 31, 2016:                          
515 POST OAK Houston, TX 100% None
 $6,100
 $28,905
 $35,005
 $12,539
 $6,241
 $41,303
 $47,544
 $12,589
 1980 2/10/2004 0 to 40 years
5 HOUSTON CENTER Houston, TX 100% None
 8,186
 147,653
 155,839
 (26,865) 8,186
 120,788
 128,974
 39,378
 2002 12/20/2005 0 to 40 years
KEY CENTER TOWER Cleveland, OH 100% None
(b) 
7,269
 244,424
 251,693
 21,566
 7,453
 265,806
 273,259
 87,515
 1991 12/22/2005 0 to 40 years
KEY CENTER MARRIOTT Cleveland, OH 100% None
 3,473
 34,458
 37,931
 16,381
 3,629
 50,683
 54,312
 19,800
 1991 12/22/2005 0 to 40 years
HOUSTON ENERGY CENTER I Houston, TX 100% None
 4,734
 79,344
 84,078
 5,130
 4,734
 84,474
 89,208
 21,509
 2008 6/28/2010 0 to 40 years
    TOTAL CONSOLIDATED REAL ESTATE ASSETS - HELD FOR SALE 29,762

534,784

564,546

28,751

30,243

563,054

593,297

180,791
      
TOTAL CONSOLIDATED REAL ESTATE ASSETS     $778,922

$3,414,266

$4,193,188

$50,343

$781,594

$3,461,937

$4,243,531

$729,025
      
UNCONSOLIDATED REAL ESTATE ASSETS:                          
MARKET SQUARE BUILDINGS(g)
 Washington, D.C. 51% 325,000
 $152,629
 $450,757
 $603,386
 $50,876
 $152,629
 $399,881
 $552,510
 $16,530
 1990 10/28/2015 0 to 40 years
Columbia Property Trust, Inc.
Schedule III – Real Estate Assets and Accumulated Depreciation and Amortization
December 31, 2017 (in thousands)
        Initial Costs Costs Capitalized Subsequent to Acquisition Gross Amount at Which Carried at
December 31, 2017
 Accumulated Depreciation and Amortization Date of Construction   
Life on Which Depreciation and Amortization is Computed(b)
Description Location Owner- ship % Encum-brances Land Buildings and Improvements Total  Land Buildings and Improvements 
Total(a)
   Date Acquired 
ONE & THREE GLENLAKE Atlanta, GA 100% $23,716
(c) 
$13,363
 $155,465
 $168,828
 $2,429
 $13,989
 $157,268
 $171,257
 $49,203
 2003/2008 6/25/2004/ 7/31/2008 0 to 40 years
80 M STREET Washington, D.C. 100% None 26,248
 76,269
 102,517
 7,080
 26,806
 82,791
 109,597
 23,439
 2001 6/29/2004 0 to 40 years
263 SHUMAN BOULEVARD Naperville, IL 100% $49,000
 7,142
 41,535
 48,677
 (3,344) 7,233
 38,100
 45,333
 15,146
 1986 7/20/2006 0 to 40 years
95 COLUMBUS Jersey City, NJ 100% None
 29,061
 141,544
 170,605
 13,056
 29,712
 153,949
 183,661
 60,366
 1989 10/31/2006 0 to 40 years
PASADENA CORPORATE PARK Pasadena, CA 100% None
 53,099
 59,630
 112,729
 (893) 53,099
 58,737
 111,836
 17,944
 1965/2000/ 2002/2003 7/11/2007 0 to 40 years
222 EAST 41ST STREET New York City, NY 100% None
(d) 

 324,520
 324,520
 (25,359) 
 299,161
 299,161
 67,336
 2001 8/17/2007 0 to 45 years
LINDBERGH CENTER Atlanta, GA 100% None
(d) 

 262,468
 262,468
 3,252
 
 265,720
 265,720
 77,417
 2002 7/1/2008 0 to 40 years
CRANBERRY WOODS DRIVE Cranberry Township, PA 100% None
 15,512
 173,062
 188,574
 6,579
 15,512
 179,641
 195,153
 46,136
 2009/2010 6/1/2010 0 to 40 years
221 MAIN STREET San Francisco, CA 100% None
 60,509
 174,629
 235,138
 12,927
 60,509
 187,556
 248,065
 27,105
 1974 4/22/2014 0 to 40 years
650 CALIFORNIA STREET San Francisco, CA 100% None
 75,384
 240,441
 315,825
 13,978
 75,384
 254,419
 329,803
 28,925
 1964 9/9/2014 0 to 40 years
315 PARK AVENUE SOUTH New York, NY 100% None
 119,633
 249,510
 369,143
 13,130
 119,633
 262,640
 382,273
 19,204
 1910 1/7/2015 0 to 40 years
116 HUNTINGTON AVENUE Boston, MA 100% None
(e) 

 116,290
 116,290
 47,662
 
 163,952
 163,952
 16,640
 1991 1/8/2015 0 to 40 years
229 WEST 43RD STREET New York, NY 100% None
 207,233
 292,991
 500,224
 (553) 207,233
 292,438
 499,671
 30,119
 1912/1924/ 1932/1947 8/4/2015 0 to 40 years
245-249 WEST 17TH STREET New York, NY 100% None
 113,149
 221,517
 334,666
 
 113,150
 221,516
 334,666
 2,210
 1902/1909 10/11/2017 0 to 40 years
218 WEST 18TH STREET New York, NY 100% None
 43,836
 139,077
 182,913
 
 43,836
 139,077
 182,913
 1,437
 1912 10/11/2017 0 to 40 years
149 MADISON AVENUE New York, NY 100% None
 59,112
 28,989
 88,101
 1,132
 59,112
 30,121
 89,233
 
 1916 11/28/2017 0 to 40 years
    TOTAL CONSOLIDATED REAL ESTATE ASSETS(f)
 $823,281
 $2,697,937
 $3,521,218
 $91,076
 $825,208
 $2,787,086
 $3,612,294
 $482,627
      
UNCONSOLIDATED REAL ESTATE ASSETS (presented at 100% of the Joint Venture's Basis)(g):
                  
MARKET SQUARE Washington, D.C. 51.0% $325,000
 $152,629
 $450,757
 $603,386
 $(41,591) $152,629
 $409,166
 $561,795
 $29,483
 1990 10/28/2015 0 to 40 years
UNIVERSITY CIRCLE East Palo Alto, CA 77.5% None
 27,493
 278,288
 305,781
 (99,466) 27,757
 178,558
 206,315
 2,839
 2001/2002/ 2003 7/6/2017 0 to 40 years
333 MARKET STREET San Francisco, CA 77.5% None
 114,483
 292,840
 407,323
 (41,229) 114,484
 251,610
 366,094
 4,038
 1979 7/6/2017 0 to 40 years
114 FIFTH AVE New York, NY 49.5% None
 
 383,694
 383,694
 1,824
 
 385,518
 385,518
 27,165
 1910 7/6/2017 0 to 40 years
1800 M STREET Washington, D.C. 55.0% None
 125,735
 272,353
 398,088
 31,485
 125,735
 303,838
 429,573
 3,863
 1975 10/11/2017 0 to 40 years
TOTAL UNCONSOLIDATED REAL ESTATE ASSETS 420,340
 $1,677,932
 $2,098,272
 $(148,977) $420,605
 $1,528,690
 $1,949,295
 $67,388
      
(a)
95 Columbus was previously referred to as International Financial Tower.
(b)
Property is owned subject to a long-term ground lease.
(c)
As a result of the acquisition of the Three Glenlake Building, Columbia Property Trust acquired investments in bonds and certain obligations under capital leases in the amount of $120.0 million.
(d)
116 Huntington Avenue is owned subject to a long-term, pre-paid ground lease.
(e) 
The aggregate cost of consolidated land and buildings and improvements for federal income tax purposes is approximately $4.488$3.933 billion.
(f)(b) 
Columbia Property Trust assets are depreciated or amortized using the straight-line method over the useful lives of the assets by class. Generally, tenant improvements are amortized over the shorter of economic life or lease term, lease intangibles are amortized over the respective lease term, building improvements are depreciated over 5-25 years, and buildings are depreciated over 40-45 years.
(c)
The One Glenlake Building is subject to a $23.7 million mortgage note. As a result of the acquisition of the Three Glenlake Building, Columbia Property Trust acquired investments in bonds and certain obligations under capital leases in the amount of $120.0 million.
(d)
Property is owned subject to a long-term ground lease.
(e)
116 Huntington Avenue is owned subject to a long-term, pre-paid ground lease.
(f)
Consolidated real estate assets excludes $3.2 million of corporate assets.
(g) 
Account balances are presented at 100% for the Market Square Buildings.  On October 28, 2015, the Market Square Buildings were transferred to an unconsolidated joint venture in which Columbia Property Trust owns 51% as of December 31, 2016. The aggregate cost of 100% of the land and buildings and improvements, net of debt, held by the Market Square Joint Ventureunconsolidated joint ventures for federal income tax purposes is approximately $578.5 million.$2.025 billion.



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Table of Contents
Index to Financial Statements

Columbia Property Trust, Inc.
Schedule III – Real Estate Assets and Accumulated Depreciation and Amortization
(in thousands)

For the Years Ended December 31,For the Years Ended December 31, 
2016 2015 20142017 2016 2015
Real Estate:           
Balance at beginning of year$4,948,605
 $5,050,482
 $4,875,866
$4,243,531
 $4,948,605
 $5,050,482
 
Additions to/improvements of real estate41,848
 1,162,068
 610,510
698,567
 41,848
 1,162,068
 
Sale/transfer of real estate(673,164) (1,188,083)
(1) 
 (399,499)(1,285,915)
(1) 
 (673,164) (1,188,083)
(2) 
Impairment of real estate
 
 (25,130)
Write-offs of building and tenant improvements(5,559) (1,552) (1,230)(3,087) (5,559) (1,552) 
Write-offs of intangible assets(2)
(30,435) (12,614) (5,251)
Write-offs of intangible assets(3)
(14,432) (30,435) (12,614) 
Write-offs of fully depreciated assets(37,764) (61,696) (4,784)(26,370) (37,764) (61,696) 
Balance at end of year$4,243,531
 $4,948,605
 $5,050,482
$3,612,294
 $4,243,531
 $4,948,605
 
Accumulated Depreciation and Amortization:           
Balance at beginning of year$863,724
 $973,920
 $903,472
$729,025
 $863,724
 $973,920
 
Depreciation and amortization expense140,823
 183,492
 161,133
97,732
 140,823
 183,492
 
Sale/transfer of real estate(203,248) (221,481)
(1) 
 (80,607)(302,157)
(1) 
 (203,248) (221,481)
(2) 
Write-offs of tenant improvements(4,336) (948) (690)(1,406) (4,336) (948) 
Write-offs of intangible assets(2)
(30,174) (9,563) (4,604)
Write-offs of intangible assets(3)
(14,197) (30,174) (9,563) 
Write-offs of fully depreciated assets(37,764) (61,696) (4,784)(26,370) (37,764) (61,696) 
Balance at end of year$729,025
 $863,724
 $973,920
$482,627
 $729,025
 $863,724
 
(1)
Includes the transfer of 100% of University Circle and 333 Market Street to unconsolidated joint ventures, in which Columbia Property Trust currently owns a 77.5% interest.
(2) 
Includes the transfer of 100% of the Market Square Buildings to an unconsolidated joint venture, in which Columbia Property Trust currently owns a 51% interest.
(2)(3) 
Consists of write-offs of intangible lease assets related to lease restructurings, amendments, and terminations.




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