HRPT PROPERTIES TRUST (a Maryland real estate investment trust) Floating Rate Senior Notes due 2011 UNDERWRITING AGREEMENTUnderwriting Agreement • March 15th, 2006 • HRPT Properties Trust • Real estate investment trusts • Maryland
HRPT Properties Trust, a Maryland real estate investment trust (the “Company”), confirms its agreement with the underwriters named in Schedule A hereto (collectively, the “Underwriters” which term also includes any underwriter substituted as hereinafter provided in Section 10), for whom RBC Capital Markets Corporation and Wachovia Capital Markets, LLC are acting as Representatives (the “Representatives”), with respect to the sale by the Company and the purchase by the Underwriters, acting severally and not jointly, of $400,000,000 aggregate principal amount of the Company’s Floating Rate Senior Notes due 2011 (the “Notes”), set forth in said Schedule A next to their respective names. The Notes are to be issued pursuant to an indenture dated as of July 9, 1997 and a supplemental indenture dated as of March 16, 2006 (together, the “Indenture”), each between the Company and U.S. Bank National Association (as successor trustee to State Street Bank and Trust Company) (the “Trustee”).
