Boston Properties to Release Fourth Quarter 2005 Financial Results on January 30, 2006

January 17, 2006

BOSTON, Jan. 17 /PRNewswire-FirstCall/ -- Boston Properties, Inc. (NYSE: BXP), a real estate investment trust, announced today that it will release financial results for the 4th Quarter 2005 on Monday, January 30, 2006 after the close of the day's 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 Tuesday, January 31, 2006 to discuss the financial results of the Fourth Quarter and provide a Company update.

The conference call can be accessed by dialing 800-218-8862 (Domestic) or 303-205-0066 (International); no passcode is required. The replay will be available through February 7, 2006 by dialing 800-405-2236 (Domestic) or 303-590-3000 (International) / passcode 11049648. The Company will audio web cast the call which may be accessed through http://www.earnings.com for individual investors or through the password-protected event management site, http://www.streetevents.com, for institutional investors. A link to the audio web cast will also be available on the Company's own site at http://www.bostonproperties.com in the Investor Relations section. A replay of the audio web cast will be archived in the Investor Relations section of the Company's web site under the heading Events & Webcasts. The call will also be available as a podcast on http://www.REITcafe.com and on the Company's web site shortly after 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 also includes three hotels and one industrial property. 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.

Visit the Company's web site at http://www.bostonproperties.com.

CONTACT:
Kathleen DiChiara
Investor Relations of Boston Properties, Inc.
+1-617-236-3322

Marilynn Meek
General Info.
+1-212-827-3773
Of Financial Relations Board for Boston Properties, Inc.