Arden Realty, Inc. Announces Renewal of Leases with Boeing Corporation for 272,000 Square Feet.

LOS ANGELES -- Arden Realty, Inc. (NYSE:ARI) today announced the renewal of its leases with Boeing Corporation for a total of 272,000 square feet at its Long Beach Airport project. These leases, which were scheduled to expire in October 2005, comprised eight floors in three different buildings at 4900, 4910 and 4811 Airport Plaza Drive in Long Beach. Robert Peddicord, Arden's Senior Vice President of Property Operations, stated, "We are extremely happy to renew these leases which represent about 8% of our 2005 expirations and retain a valued, long-term tenant like Boeing".

Arden Realty, Inc. is a self-administered, self-managed REIT that owns, manages, leases, develops, renovates and acquires commercial office properties located in Southern California. Arden is the largest publicly traded office landlord in Southern California, with 128 properties, consisting of 210 buildings and approximately 18.9 million net rentable square feet of office space, including one building with 99,000 square feet under renovation. For more information on the company, visit the Arden website at http://www.ardenrealty.com.

Statements in this news release that are not historical may be deemed forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Although the company believes the expectations reflected in any forward-looking statements are based on reasonable assumptions, it can give no assurance that its expectations will be attained. Factors that could cause actual results to differ materially from the company's expectations include the availability and cost of capital for future investments, competition within the industry, real estate and economic conditions, and other risks detailed from time to time in the company's Securities and Exchange Commission filings.