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One Delisle has topped off in Toronto’s Deer Park neighbourhood. The 44-storey condominium tower at the northeast corner of Yonge Street and Delisle Avenue, designed by Studio Gang with WZMH Architects as Architect of Record, has become one of the city’s most distinctive high-rise developments. Studio Gang’s first Canadian commission is defined by a series of rotating eight-storey volumetric modules that gradually transform the building from a rectilinear podium into a near-cylindrical tower. UrbanToronto last did a feature story on the Slate Asset Management development at the time of a construction tour in October, 2025.
From the Beltline Bridge in May, 2026, One Delisle had climbed to its full architectural height, with forming activity then started for the mechanical penthouse around the central core, while a concrete boom pump extends above the structure and the crane remains active overhead. Below, forming work has finished on the penthouse levels. The north elevation continues to host the construction hoist, creating a temporary interruption in the facade installation, while curtain wall glazing and cladding have advanced to approximately the 37th floor.
From grade, the tower’s modules and sculptural massing clearly expressed from podium to crown, gradually morphing from a rectilinear base to a rounded crown. White powder-coated aluminum cladding wraps the exterior in a lattice-like arrangement of fluted piers and faceted framing elements, contrasting with dark glazing and balcony guards behind. The chamfering of window sections and balcony openings makes each floor-plate unique, with no two levels configured exactly alike.
Looking south along Yonge Street in late May, the concrete pouring for the mechanical penthouse is now complete, with a compact, cube-like crown atop the residential tower. In the background, One Bloor West is visible in the distance below its crane.
This close-up view from this month highlights the complexity of the facade system, with panels framing the shifting modules as they rise. Modules alternate between floor-to-ceiling glazing and recessed balcony bays, adding depth to the exterior.
From west of Avenue Road on St Clair, One Delisle dominates the view, its white cladding contrasting with dark glazing, installed on two fluted facade sections up to the 38th floor. Above, the uppermost floors await enclosure, including the mechanical penthouse's raw concrete above.
One Delisle stands 155m and will house 371 condominium units.
UrbanToronto will continue to follow progress on this development, but in the meantime, you can learn more about it from our Database file, linked below. If you'd like, you can join in on the conversation in the associated Project Forum thread or leave a comment in the space provided on this page.
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