Government Properties Trust Announces Definitive Agreement to Acquire Property in Denver, Colorado; Company to Acquire EPA Building for a Price Not to Exceed $95 Million.

OMAHA, Neb. -- Government Properties Trust, Inc. (NYSE: GPT), a self-managed, self-administered real estate investment trust, today announced that it has executed a definitive agreement to acquire a 280,000 square foot, nine story building located in the Lower Downtown Historic District in Denver, Colorado for a price not to exceed $95.0 million.

The building is being acquired from an affiliate of Opus Northwest, L.L.C. through Government Property Trust's Pre-Completion/Pre-Construction Program. The property is currently under development. The transaction is scheduled to close and be funded upon the later of December of 2006 or upon the completion of the project and acceptance of the property by the tenant. Opus Northwest Management, L.L.C. will be engaged to manage the facility.

The General Services Administration on behalf of the Environmental Protection Agency has executed a 10-year lease. Approximately 16,000 square feet of the building will be available for street level retail space. The project includes 225 on-site underground parking stalls and an additional 122 off-site surface stalls are available.

Thomas D. Peschio, President and CEO of Government Properties Trust, stated, "We are quite pleased to secure this project. It is excellent real estate, well designed and properly situated to serve as the regional headquarters of an essential governmental agency under a long term lease with a high probability of renewal. This type of property fits quite well with the long-term growth strategy of this Company."

The Company is currently in the process of securing fixed interest rate financing for the underlying first mortgage that will be placed on the property at the time of closing. A forward interest rate lock has been put in place pending completion of the project.

While this property has been placed under a binding contract, there is no assurance the transaction will close or will close as scheduled. Construction is not complete and there are no assurances that it will be completed on schedule.

About Government Properties Trust, Inc.

Government Properties Trust, Inc. invests primarily in single tenant properties under long-term leases to the U.S. government. Government Properties Trust, Inc. is a self-managed, self-administered real estate investment trust, or REIT. The company is located at 13625 California Street, Suite 310, Omaha, NE 68154.

This press release contains forward-looking statements. These forward-looking statements can be identified by the use of words such as "may," "will," "should," "expects," "plans," "anticipates," "believes," "estimates," "predicts," "intends," "continue," or the negative of such terms, or other comparable terminology. Forward-looking statements also include the assumptions underlying or relating to any of the foregoing statements.

The Company's actual results could differ materially from those anticipated in these forward-looking statements as a result of various risks discussed from time to time in our SEC filings.

All forward-looking statements included in this press release are based on information available to us on the date hereof. We assume no obligation to update any forward-looking statements.

NOTICE TO PROSPECTIVE INVESTORS

Do not make an investment decision regarding the Company's stock based solely on the foregoing information. Such a decision should be made only after a careful review and analysis of all the relevant filed or otherwise publicly disclosed information regarding the Company and its prospects.

For additional information, please visit the Government Properties Trust, Inc. Web site at www.gptrust.com.