OFFICIAL OPENING OF BROOKFIELD PLACE PERTH

2012 Opening Launch Event

PERTH, 13 September 2012 – Brookfield Office Properties Inc. (NYSE, TSX: BPO) (“Brookfield”) has today announced the official opening of Brookfield Place Perth, its landmark 45-level, premium-grade development and associated heritage buildings in Perth, Western Australia. 

The office tower is 100% leased to anchor tenant BHP Billiton, PwC and Barrick Gold, all of which have now completed their fit-outs and commenced moving into the property.

Additional tenants expected to move into the heritage buildings over the coming months and its major four-level bar and restaurant, Print Hall, is due to open to the public from 18 September. The precinct’s other restaurants, cafes, bars and shops are continuing to open.

Kurt Wilkinson, COO of Brookfield Office Properties Australia, said: “Today is the culmination of a great deal of hard work to bring a vision of a new, vibrant inner-city precinct to life.

“When planning this project, we wanted to create Perth’s premier business address alongside a new and active CBD destination, through sophisticated restaurants, bars and retail space. We are proud to have achieved that aim and I congratulate the team on delivering a development which has truly redefined Perth’s skyline.”

Brookfield Place Perth will be officially opened this evening with a plaque unveiling by the Governor of Western Australia, His Excellency Malcolm McCusker and Lord Mayor of the City of Perth, Lisa Scaffidi. The opening event will include a welcome to country performed by Richard Walley OAM, entertainment from the WA Symphony Orchestra and an aerial acrobatics performance.

Brookfield Place’s office tower has been awarded a ‘5-Star Green Star – Office Design v2 Certified Rating’ by the Green Building Council of Australia. The rating represents ‘Australian Excellence’ in environmentally sustainable design and recognises a number of the building’s features, including energy efficient systems and ‘grey water’ recycling.

Plans continue for Brookfield Place Perth’s second commercial tower, which has development approval for a 16-level, premium-grade office tower with approximately 32,000 square metres (345,000 square feet) of net lettable area. With the inclusion of a second commercial tower, Brookfield Place will comprise over 107,000 square metres (more than 1.1m square feet) of premium-grade office space.

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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 112 properties totaling 7.5 million square metres (80 million square feet) in the downtown cores of New York, Washington, D.C., Houston, Los Angeles, 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 Brookfield Place in Perth. The company’s common shares trade on the NYSE and TSX under the symbol BPO. For more information, visit www.brookfieldofficeproperties.com.

About Brookfield Place Perth

Brookfield Place Perth is one of Australia’s most significant commercial developments. Located in the heart of Perth’s CBD, the development’s centrepiece is a premium-grade, 45-level office tower incorporating the latest in workplace design over 75,000 square metres (807,300 square feet) of which BHP Billiton is the anchor tenant. Brookfield Place Perth provides new civic space in Perth’s CBD through a unique heritage retail area, offering a variety of food and beverage options in some of the city’s most important sympathetically restored historical buildings. In total, the project comprises a net lettable area of approximately 86,000 square metres (926,000 square feet). Brookfield Place Perth is fully owned, managed and built by Brookfield and its subsidiaries. For more information, visit www.brookfieldplaceperth.com 

For further Information, Brookfield Office Properties:

Contact: Kerrie Muskens
Head of Marketing and Communications
+61 2 9322 2753
+61 (0) 410 535 250
kerrie.muskens@au.brookfield.com

Contact: Melissa Coley
Vice President, Investor Relations and Communications
+212 417 7488 (USA)
melissa.coley@brookfield.com 

Contact: Garry Nickson
MAGNUS Investor Relations + Corporate Communication
+61 2 8999 1004
+61 (0) 414 930 082
gnickson@magnus.net.au

 Forward-Looking Statements

This press release contains forward-looking statements and information within the meaning of applicable securities legislation. Although Brookfield Office Properties believes that the anticipated future results, performance or achievements expressed or implied by the forward-looking statements and information are based upon reasonable assumptions and expectations, the reader should not place undue reliance on forward-looking statements and information because they involve assumptions, known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of the company to differ materially from anticipated future results, performance or achievement expressed or implied by such forward-looking statements and information. Accordingly, the company cannot give any assurance that its expectations will in fact occur and cautions that actual results may differ materially from those in the forward-looking statements. Factors that could cause actual results to differ materially from those set forth in the forward-looking statements and information include, but are not limited to, general economic conditions; local real estate conditions, including the development of properties in close proximity to the company’s properties; timely leasing of newly-developed properties and re-leasing of occupied square footage upon expiration; dependence on tenants' financial condition; the uncertainties of real estate development and acquisition activity; the ability to effectively integrate acquisitions; interest rates; availability of equity and debt financing; the impact of newly-adopted accounting principles on the company's accounting policies and on period-to-period comparisons of financial results; and other risks and factors described from time to time in the documents filed by the company with the securities regulators in Canada and the United States, including in the Annual Information Form under the heading “Business of Brookfield Office Properties – Company and Real Estate Industry Risks,” and in the company’s most recent interim report under the heading “Management’s Discussion and Analysis.” The company undertakes no obligation to publicly update or revise any forward-looking statements or information, whether as a result of new information, future events or otherwise, except as required by law.