CIBC Square I Save to My CTBUH Download PDF

Note: As this project is under construction, the data is based on the most reliable information currently available. This data is thus subject to change until the building has completed and all information can be confirmed and ratified by the CTBUH.

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Height: Architectural 237.8 m / 780 ft
Height: To Tip 237.8 m / 780 ft
Floors Above Ground 49
Development GFA 278,709 m² / 2,999,999 ft²


Official Name CIBC Square I
Name of Complex CIBC Square
Other Names 81 Bay Street Tower, Bay Park Centre Phase 1, 45 Bay South Tower
Structure Type Building
Status Under Construction
Country Canada
City Toronto
Street Address & Map 81 Bay Street
Postal Code M5E 1Z8
Building Function office
Structural Material composite
  • Core: Reinforced Concrete
  • Columns: Steel
  • Floor Spanning: Steel
Energy Label LEED Platinum
Construction Start 2017
Completion 2020

Companies Involved

Developer Ivanhoé Cambridge; Société immobilière Trans-Québec; Hines Canada Management Co. ULC
Design WilkinsonEyre
Architect of Record Adamson Associates
Structural Engineer
Design RJC Engineers
Main Contractor EllisDon Construction Services Inc.
Material Supplier
• Steel Walters Group Inc.; ArcelorMittal


Urban Policy Towards Tall Buildings Globally: The Architect’s Perspective
30 Oct 2017 – Chris Wilkinson, Wilkinson Eyre

Exploring Geometry and Form in Tall Buildings
19 Oct 2016 – Chris Wilkinson, Wilkinson Eyre

Research Papers

Exploring Geometry and Form in Tall Buildings
17 Oct 2016 – Cities to Megacities: Shaping Dense Vertical Urbanism

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