Portland Commons

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This new 577,000 sq. ft. 15-storey Class AAA office development features a cantilever podium supported with structural steel diagonal columns over a public space.

The project has four levels of underground commercial parking at 172,000 sq. ft. with 231 stalls.

It also includes a below-grade tunnel connection to the existing heritage buildings at 510 Front Street ands 495 to 517 Wellington Street.

The primary structure consists of cast-in-place concrete slabs with exposed tapered drop panels.

There are three central concrete cores that act as the lateral force resisting system.

The main structural challenge was designing the five-storey overhang podium that cantilevers approximately 15m from the building face with diagonal steel structs, over a six-storey high public outdoor space.

Project Specifications

Toronto, ON

Building Structure Type

Sweeny&Co Architects

EllisDon Construction Services Inc.

Service Areas

Practice Areas

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