The One - 1 Bloor Street West

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At 305m tall, The One is Canada's tallest building and one of the most slender supertall towers in the world.

The design, by London-based Foster and Partners with the Toronto firm Core Architects, is a three-part composition: Retail at ground level and restaurant space, reaching up through eight levels and features a public atrium; above that, a box containing the tower's mechanicals; and on top, a residential tower.

With a total of 84 storeys, the condo floors are highly flexible and the retail space (more than 240,000 sq. ft.) is free of structural columns, with 22-foot ceilings.

The signature design highlights a unique exoskeleton structural system that dramatically reshapes Toronto's skyline.

Project Specifications

Location
Toronto

Building Structure Type
Residential / Retail or Shopping Centre / High-Rise / Mixed-Use

Owner/Developer
Mizrahi Developments

Architect
Foster and Partners + Core Architects

Contractor
Clark Builders

Service Areas

Building Enclosures

Building Enclosures

Facade Engineering

Facade Engineering

Roofs & Plaza Decks

Roofs & Plaza Decks

Structural Engineering

Structural Engineering

Structural Glass Engineering

Structural Glass Engineering

Practice Areas

Structural Engineering

Structural Engineering

Building Science

Building Science

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