HRPT Properties Trust to Present at the REITWeek 2010: NAREIT Investor Conference on June 9, 2010

HRPT Properties Trust (NYSE: HRP) today announced that Adam Portnoy, Managing Trustee, will be presenting at the REITWeek 2010: NAREIT Investor Conference in Chicago on Wednesday, June 9, 2010 at 10:30 a.m. Central Time.

A live audio webcast of the presentation will be available in a listen-only mode on the company’s website, which is located at www.hrpreit.com. Participants wanting to access the webcast should visit the company’s website about 15 minutes before the start of the presentation.

HRPT Properties Trust is a real estate investment trust, or REIT, which primarily owns office and industrial buildings located throughout the United States. As of March 31, 2010, HRP owned 518 properties with 66.8 million square feet, including 17.9 million square feet of leased industrial and commercial lands in Oahu, Hawaii. HRP is headquartered in Newton, Massachusetts.

WARNING REGARDING FORWARD LOOKING STATEMENTS

THIS PRESS RELEASE CONTAINS FORWARD LOOKING STATEMENTS WITHIN THE MEANING OF THE PRIVATE SECURITIES LITIGATION REFORM ACT OF 1995 AND THE FEDERAL SECURITIES LAWS. THESE FORWARD LOOKING STATEMENTS ARE BASED UPON HRP’S PRESENT BELIEFS AND EXPECTATIONS, BUT THESE STATEMENTS AND THE IMPLICATIONS OF THESE STATEMENTS ARE NOT GUARANTEED TO OCCUR. FOR EXAMPLE, MR. PORTNOY’S PRESENTATION MAY BE RESCHEDULED TO A DIFFERENT DATE OR TIME OR CANCELLED DUE TO SCHEDULING CONFLICTS OR OTHER REASONS. INVESTORS ARE CAUTIONED NOT TO PLACE UNDUE RELIANCE UPON ANY FORWARD LOOKING STATEMENTS.

A Maryland Real Estate Investment Trust with transferable shares of beneficial interest listed on the New York Stock Exchange. No shareholder, Trustee or officer is personally liable for any act or obligation of the Trust.