Organization and Basis of Presentation

Organization

Kilroy Realty Corporation (the "Company") is a self-administered real estate investment trust ("REIT") active in office submarkets along the West Coast. We own, develop, acquire and manage real estate assets, consisting primarily of Class A properties in the coastal regions of Los Angeles, Orange County, San Diego County, the San Francisco Bay Area and greater Seattle, which we believe have strategic advantages and strong barriers to entry. Class A real estate encompasses attractive and efficient buildings of high quality that are attractive to tenants, are well-designed and constructed with above-average material, workmanship and finishes and are well-maintained and managed. We qualify as a REIT under the Internal Revenue Code of 1986, as amended (the "Code"). The Company's common stock is publicly traded on the New York Stock Exchange ("NYSE") under the ticker symbol "KRC."

We own our interests in all of our real estate assets through Kilroy Realty, L.P. (the "Operating Partnership") and Kilroy Realty Finance Partnership, L.P. (the "Finance Partnership"). We conduct substantially all of our operations through the Operating Partnership. Unless stated otherwise or the context indicates otherwise, the terms "Kilroy Realty Corporation" or the "Company," "we," "our," and "us" refer to Kilroy Realty Corporation and its consolidated subsidiaries and the term "Operating Partnership" refers to Kilroy Realty, L.P. and its consolidated subsidiaries. The descriptions of our business, employees, and properties apply to both the Company and the Operating Partnership.

Our stabilized portfolio of operating properties was comprised of the following office properties at March 31, 2013:



	Number of Buildings	Rentable Square Feet	Number of Tenants	Percentage Occupied
Office Properties	116	13,570,059	553	90.3	%

Our stabilized portfolio includes all of our properties with the exception of undeveloped land, development and redevelopment properties currently under construction or committed for construction, "lease-up" properties and properties held-for-sale. We define redevelopment properties as those projects for which we expect to spend significant development and construction costs on existing or acquired buildings pursuant to a formal plan, the intended result of which is a higher economic return on the property. We define "lease-up" properties as properties we recently developed or redeveloped that have not yet reached 95% occupancy and are within one year following cessation of major construction activities. As of March 31, 2013, the following properties were excluded from our stabilized portfolio:



	Number of Properties	Estimated Rentable Square Feet
Development properties under construction ⁽¹⁾	4	1,416,000
Lease-up properties	2	508,000

________________________

(1) Estimated rentable square feet upon completion.

As of March 31, 2013, all of our properties and development and redevelopment projects are owned and all of our business is

currently conducted in the state of California with the exception of eleven office properties located in the state of Washington.

As of March 31, 2013, the Company owned a 97.6% general partnership interest in the Operating Partnership. The remaining 2.4% common limited partnership interest in the Operating Partnership as of March 31, 2013 was owned by non-affiliated investors and certain of our directors and executive officers (see Note 6). Both the general and limited common partnership interests in the Operating Partnership are denominated in common units. The number of common units held by the Company is at all times equivalent to the number of outstanding shares of the Company's common stock, and the rights of all the common units to quarterly distributions and payments in liquidation mirror those of the Company's common stockholders. The common limited partners have certain redemption rights as provided in the Operating Partnership's Seventh Amended and Restated Agreement of Limited Partnership (as amended, the "Partnership Agreement") (see Note 6).

Kilroy Realty Finance, Inc., which is a wholly-owned subsidiary of the Company, is the sole general partner of the Finance Partnership and owns a 1.0% general partnership interest. The Operating Partnership owns the remaining 99.0% limited partnership interest. Kilroy Services, LLC ("KSLLC"), which is a wholly-owned subsidiary of the Operating Partnership, is the entity through which we conduct substantially all of our development activities. With the exception of the Operating Partnership, all of our subsidiaries are wholly-owned.

Basis of Presentation

The consolidated financial statements of the Company include the consolidated financial position and results of operations of the Company, the Operating Partnership, the Finance Partnership, KSLLC, and all of our wholly-owned and controlled subsidiaries. The consolidated financial statements of the Operating Partnership include the consolidated financial position and results of operations of the Operating Partnership, the Finance Partnership, KSLLC, and all wholly-owned and controlled subsidiaries of the Operating Partnership. All intercompany balances and transactions have been eliminated in the consolidated financial statements.

The accompanying interim financial statements have been prepared by management in accordance with accounting principles generally accepted in the United States of America ("GAAP") and in conjunction with the rules and regulations of the Securities and Exchange Commission ("SEC"). Certain information and footnote disclosures required for annual financial statements have been condensed or excluded pursuant to SEC rules and regulations. Accordingly, the interim financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, the accompanying interim financial statements reflect all adjustments of a normal and recurring nature that are considered necessary for a fair presentation of the results for the interim periods presented. However, the results of operations for the interim periods are not necessarily indicative of the results that may be expected for the year ending December 31, 2013. The interim financial statements for the Company and the Operating Partnership should be read in conjunction with the audited consolidated financial statements and notes thereto included in our annual report on Form 10-K for the year ended December 31, 2012.

Consolidated Variable Interest Entities

As of December 31, 2012 the consolidated financial statements of the Company and the Operating Partnership included two variable interest entities ("VIE") in which we were deemed to be the primary beneficiary. The VIEs were established during 2012 to facilitate potential like-kind exchanges pursuant to Section 1031 of the Code to defer taxable gains on dispositions for federal and state income tax purposes. During the year ended December 31, 2012, one operating property and one development project were acquired in two separate transactions and transferred to the two special purpose VIEs to facilitate potential Section 1031 Exchanges. The impact of consolidating the VIEs increased the Company's total assets and liabilities by approximately $337.0 million and $111.1 million, respectively, at December 31, 2012. During the three months ended March 31, 2013, the Section 1031 Exchanges were completed and the VIEs were terminated. As a result, $228.1 million of restricted cash set aside to facilitate the Section 1031 Exchanges was released from escrow and the Company and the Operating Partnership did not have any VIEs at March 31, 2013.