CommonWealth REIT Second Quarter 2012 Conference Call Scheduled for Wednesday, August 8th

  CommonWealth REIT Second Quarter 2012 Conference Call Scheduled for
  Wednesday, August 8th

Business Wire

NEWTON, Mass. -- August 01, 2012

CommonWealth REIT (NYSE: CWH) today announced that it will host a conference
call in conjunction with the announcement of its second quarter 2012 financial
results.

CWH plans to issue a press release containing its second quarter financial
results before the NYSE opens on Wednesday, August 8, 2012. Later that
afternoon, at 1:00 p.m. Eastern Time, Adam Portnoy, President and Managing
Trustee, and John Popeo, Chief Financial Officer, will host a conference call
to discuss the second quarter results. Following the company’s remarks, there
will be a short question and answer period.

The conference call telephone number is (888) 423-3269. Participants calling
from outside the United States and Canada should dial (612) 332-0819. No pass
code is necessary to access either call. Participants should dial in about 15
minutes prior to the scheduled start of the call. A replay of the conference
call will be available through 11:59 p.m. Eastern Time on Wednesday, August
15, 2012. To hear the replay, dial (320) 365-3844. The replay pass code is
252616.

A live audio webcast of the conference call will also be available in a
listen-only mode on the company’s web site, which is located at
www.cwhreit.com. Participants wanting to access the webcast should visit the
company’s web site about five minutes before the call. The archived webcast
will be available for replay on the company’s web site for about one week
after the call.

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.

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.

Contact:

CommonWealth REIT
Timothy A. Bonang, 617-796-8222
Vice President, Investor Relations
or
Carlynn Finn, 617-796-8222
Senior Manager, Investor Relations
www.cwhreit.com