Kilroy Realty Corporation (NYSE: KRC) today announced that it has closed the disposition of its entire industrial portfolio and two small office projects, which in aggregate total approximately 3.7 million square feet. As part of the company's capital recycling strategy, the company sold 44 properties for gross proceeds of approximately $355 million in two tranches to two institutional buyers. The purchase price reflects strong investor demand for well-located, well-leased, coastal assets. The company will reinvest the proceeds into its expanding West Coast office development program and anticipates recording an approximate $185 million gain on sale in the fourth quarter.

"These transactions reflect a milestone for the company as it moves forward with its value creation strategy of acquiring, repositioning, redeveloping and developing high quality office space in the best West Coast markets," said John Kilroy, Jr., the company's president and chief executive officer.

About Kilroy Realty Corporation. Kilroy Realty Corporation, a member of the S&P Small Cap 600 Index, is a real estate investment trust active in the office property sector along the West Coast. For over 60 years, the company has owned, developed, acquired and managed real estate assets primarily in the coastal regions of Los Angeles, Orange County, San Diego, greater Seattle and the San Francisco Bay Area. At September 30, 2012, the company's stabilized office portfolio encompassed 12.7 million rentable square feet. More information is available at http://www.kilroyrealty.com.

Forward-Looking Statements. This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements are based on our current expectations, beliefs and assumptions, and are not guarantees of future performance. Forward-looking statements are inherently subject to uncertainties, risks, changes in circumstances, trends and factors that are difficult to predict, many of which are outside of our control. Accordingly, actual performance, results and events may vary materially from those indicated in forward-looking statements, and you should not rely on forward-looking statements as predictions of future performance, results or events. Numerous factors could cause actual future performance, results and events to differ materially from those indicated in forward-looking statements, including, among others, risks associated with: investment in real estate assets, which are illiquid; trends in the real estate industry; significant competition, which may decrease the occupancy and rental rates of properties; the ability to successfully complete acquisitions and dispositions on announced terms; the ability to successfully operate acquired properties; the availability of cash for distribution and debt service and exposure of risk of default under debt obligations; adverse changes to, or implementations of, applicable laws, regulations or legislation; and the ability to successfully complete development and redevelopment projects on schedule and within budgeted amounts. These factors are not exhaustive. For a discussion of additional factors that could materially adversely affect our business and financial performance, see the factors included under the caption "Risk Factors" in our annual report on Form 10-K for the year ended December 31, 2011 and our other filings with the Securities and Exchange Commission. All forward-looking statements are based on information that was available, and speak only, as of the date on which they are made. We assume no obligation to update any forward-looking statement made in this press release that becomes untrue because of subsequent events, new information or otherwise, except to the extent required in connection with ongoing requirements under Federal securities laws.

Kilroy Realty Corporation
Tyler H. Rose
Executive Vice President
and Chief Financial Officer
310-481-8484
or
Michelle Ngo
Vice President and Treasurer
310-481-8581