Boston Properties to Release Third Quarter 2009 Financial Results on October 27, 2009.

BOSTON -- Boston Properties, Inc. (NYSE: BXP), a real estate investment trust, announced today that it will release financial results for the Third Quarter 2009 on Tuesday, October 27, 2009 after the close of trading on the New York Stock Exchange. The Company will host a conference call and audio web cast, both open to the general public, at 10:00 A.M. Eastern Time on Wednesday, October 28, 2009 to discuss the financial results of the Third Quarter and provide a Company update.

The conference call can be accessed by dialing 877-706-4503 (Domestic) or 281-913-8731 (International) and entering the passcode 34803191. The replay will be available through November 11, 2009 by dialing 800-642-1687 (Domestic) or 706-645-9291 (International) and entering the passcode 34803191. There will also be a live audio webcast of the call, which may be accessed on the Company's website at www.bostonproperties.com in the Investor Relations section. Shortly after the call, a replay of the webcast will be available in the Investor Relations section of the Company's website and archived for up to twelve months following the call.

Boston Properties is a fully integrated, self-administered and self-managed real estate investment trust that develops, redevelops, acquires, manages, operates and owns a diverse portfolio of Class A office properties and one hotel. The Company is one of the largest owners and developers of Class A office properties in the United States, concentrated in five markets - Boston, Midtown Manhattan, Washington, D.C., San Francisco and Princeton, N.J.