NEW YORK, NY--(Marketwire - Apr 11, 2012) - Brookfield Office Properties Inc. (NYSE: [ BPO ]) (TSX: [ BPO ]) announced today that its 2012 first quarter results will be released prior to the market open on Friday, May 4, 2012. Analysts, investors and other interested parties are invited to participate in the company's live conference call reviewing the results on Friday, May 4 at 11:00am (ET). Scheduled speakers are Ric Clark, chief executive officer, and Bryan Davis, chief financial officer.

Along with the earnings news release, an updated supplemental information package will be available on the company's website, [ www.brookfieldofficeproperties.com ], before the market open on May 4.

To participate in the conference call, please dial 888.857.6930, pass code 5541414, five minutes prior to the scheduled start of the call. Live audio of the call will also be available via webcast at [ www.brookfieldofficeproperties.com ].

A replay of this call can be accessed through June 4, 2012 by dialing 888.203.1112, pass code 5541414. A replay of the webcast, as well as a podcast download, will be available at [ www.brookfieldofficeproperties.com ] for one year.

Annual General Meeting

Brookfield Office Properties will hold its Annual General Meeting of shareholders on Thursday, May 3 at 11:00am (ET) at Three World Financial Center, 200 Vesey Street, 26th Floor in New York City.

About Brookfield Office Properties
Brookfield Office Properties owns, develops and manages premier office properties in the United States, Canada and Australia. Its portfolio is comprised of interests in 108 properties totaling 77 million square feet in the downtown cores of New York, Washington, D.C., Houston, Los Angeles, Denver, Toronto, Calgary, Ottawa, Sydney, Melbourne and Perth, making it the global leader in the ownership and management of office assets. Landmark properties include the World Financial Center in Manhattan, Brookfield Place in Toronto, Bank of America Plaza in Los Angeles, Bankers Hall in Calgary, Darling Park in Sydney and City Square in Perth. The company's common shares trade on the NYSE and TSX under the symbol BPO. For more information, visit [ www.brookfieldofficeproperties.com ].