N@N

NEWTON, Mass.--([ BUSINESS WIRE ])--CommonWealth REIT (NYSE: CWH) today announced that John Popeo, Chief Financial Officer, will be presenting at JMP Securities Research Conference in San Francisco on Tuesday, May 15, 2012 at 2:30 p.m. Pacific Time.

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

CommonWealth REIT is a real estate investment trust, or REIT, which primarily owns office and industrial properties located throughout the United States. CWH is headquartered in Newton, MA.

WARNING REGARDING FORWARD LOOKING STATEMENTS

THIS PRESS RELEASE CONTAINS STATEMENTS WHICH CONSTITUTE FORWARD LOOKING STATEMENTS WITHIN THE MEANING OF THE PRIVATE SECURITIES LITIGATION REFORM ACT OF 1995 AND OTHER SECURITIES LAWS. ALSO, WHENEVER WE USE WORDS SUCH AS aBELIEVEa, aEXPECTa, aANTICIPATEa, aINTENDa, aPLANa, aESTIMATEa, OR SIMILAR EXPRESSIONS, WE ARE MAKING FORWARD LOOKING STATEMENTS. THESE FORWARD LOOKING STATEMENTS ARE BASED UPON OUR PRESENT INTENT, BELIEFS OR EXPECTATIONS, BUT FORWARD LOOKING STATEMENTS ARE NOT GUARANTEED TO OCCUR AND MAY NOT OCCUR. OUR ACTUAL RESULTS MAY DIFFER MATERIALLY FROM THOSE CONTAINED IN OUR FORWARD LOOKING STATEMENTS AS A RESULT OF VARIOUS FACTORS. FOR EXAMPLE, MR. POPEOaS 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.