GTA office building sales led all investment classes in Q3, accounting for $578M, or 29% of total market activity, according to Avison Young. Here are the quarter’s five biggest deals.

1. Liberty Centre

Purchase price: $111.5M

Buyer: Fiera Properties

Seller: IBM Canada Ltd

Significance: A 552k SF, six-storey building built in 1982, Liberty Centre at 3500 Steeles Ave E (at Victoria Park) served as IBM’s HQ before the company moved across the road to 3600 Steeles Ave E.

2. 70 York St

Purchase price: $110M

Buyer: Anbang Insurance Group

Seller: Brookfield Office Properties

Significance: Beijing-based Anbang, which bought New York’s Waldorf Astoria last year, acquired a land lease interest in the 17-storey, LEED EB:O&M Gold tower, also known as the HSBC Building.

3. Evton Capital Partners portfolio

Purchase price: $93.5M

Buyer: Slate Properties

Seller: Evton Capital Partners

Significance: Deal involves three properties: 5075 Yonge St (86.5k SF), acquired for $31M; 1 St. Clair Ave W (85k SF), bought for $33.5M; and 2323 Yonge St (67.4k SF), seen above, snapped up by Slate for $29M.

4. King James Place

Purchase price: $59.5M

Buyer: Northam Realty Advisors

Seller: Woodcliffe Corp

Significance: Redevelopment of 133-145 King St E incorporates some of TO’s oldest buildings in a mostly intact 19th-century streetscape. New structure won Governor General’s Award for Architecture.

5. 600 Cochrane Dr

Price: $30.3M

Buyer: 0910448 B.C. Ltd

Seller: Crown Realty Partners

Significance: A five-storey, 100k SF building completed in 2001, the property was part of a portfolio acquisition made by Crown earlier this year, together with 575 and 675 Cochrane Dr (aka Trillium Executive Centre).