TORONTO — Architecture practice WilkinsonEyre has completed the second phase of CIBC SQUARECIBC Square Office Building – Tower TwoStatusAwardValue$275MLocation141 Bay St, Toronto ONSectorPrivateTypeOffice · New Construction · Addition · LEED CertificationData as of June 8, 2026View Project Page →, finalizing a major mixed-use development in Toronto’s financial district.
Designed in collaboration with architect of record Adamson Associates for developers La Caisse and Hines, the completion of 141 Bay Street “marks the culmination of WilkinsonEyre’s broader masterplan for the site, building on the first phase at 81 Bay Street to establish a new transit connected commercial campus spanning the Union Station rail corridor,” explains a release.
The development introduces a pair of 250 metre commercial towers linked by a one acre elevated sky park that spans active rail infrastructure.
The sky park, developed in collaboration with landscape architects Public Work, is due to open later this year and will offer year-round programming to the public.
“CIBC SQUARE presented an extraordinary opportunity to rethink how large commercial developments can contribute to the life of the city,” says Dominic Bettison, director at WilkinsonEyre, in a statement. “Rather than treating infrastructure as a barrier, the project embraces it as an organizing element that connects transit, landscape, workplace and public space into a seamless urban experience. The development creates a new gateway into downtown Toronto while extending the energy of the financial district toward the waterfront.”
CIBC SQUARE was built across three linked sites that totalled eight acres, with the sky park forming the centrepiece of the masterplan.
The one-acre park introduces gardens, walking paths, gathering spaces and outdoor amenities above active rail lines, the release adds
The development was delivered in two phases. The first tower at 81 Bay Street rises 54 storeys and includes commercial office and trading floors alongside conference facilities, retail spaces, restaurants and transit infrastructure. The second tower at 141 Bay Street completes the campus composition on the north side of the corridor.
Both towers are defined by lightly folded glazed façades that create a repeating diamond geometry across every 10 floors, the release adds.
Restaurants, fitness facilities, conference and event spaces, specially-commissioned public artworks and a series of green public plazas were also integrated throughout the campus.
Sustainability goals for the project included LEED and WELL Platinum certifications, prioritizing daylight access, air quality, occupant wellness and energy efficiency throughout the campus.
