​Rising north of the bustling Midtown Toronto intersection of Yonge and St Clair, and steps from St Clair subway station, One Delisle from Slate Asset Management will stand the tallest amongst its neighbours at 155m and 44 storeys when complete. This strikingly fluted design, the first Canadian foray for the world-renowned architect Jeanne Gang and her firm Studio Gang Architects, with Toronto-based WZMH Architects acting as Architect of Record. has been making progress on its excavation since UrbanToronto last checked in on the site in 2022

Looking south to One Delisle, designed by Studio Gang Architects and WZMH Architects for Slate Asset Management

Looking from the corner of Yonge and Delisle in July, 2023 provides a view of the south and west concrete shoring walls, fastened into the ground behind them with tiebacks. Plastic piping to evacuate groundwater and maintain a dry work environment can be seen, while excavators are parked on the west side of the pit.

Looking south to the excavation in July 2023, image by UrbanToronto Forum contributor ProjectEnd

In October, 2023, an eastward view showcases a concrete pump on the north side, while to its right, the jib of a mobile crane is visible. At the centre of the photo, layers of rebar are gradually being built up to create a raft slab a few metres thick below where the tower will rise.

Looking east to a concrete pour with rebar installed in preparation for the tower cranes, image by UrbanToronto Forum contributor GabrielHurl

At the start of this year, we gaze southwest to the two tower cranes erected in late 2023.

The two tower cranes onsite from a southwest view on Yonge Street, image by UrbanToronto Forum contributor bilked

While the southern section of One Delisle's podium will feature a restored and reconstituted Art Deco front of a 1930-built, two-storey building that stood at 1496 to 1502 Yonge Street, a modern section meant to complement the precast stone of the heritage front will be built to the north, and wrap around on the Delisle Avenue frontage.

Details of the reconstituted and new sections of the podium, image courtesy of Slate Asset Management

A mock-up of the finishing materials for the modern section was recently assembled onsite.The modern section's aluminum paneling boasts a muted gold tone and crisp geometric lines. The panelling's hints at the hexagonal modules that will mark the tower above, from its rectilinear base floors that gradually transition to circular floor plates at its peak. The choice of panels reveals the intention of creating tactile, visually engaging experiences in the ground realm. 

A close-up view of the retail podium mock-up, image by Brandon Donnelly

Finally, looking southeast this month to ongoing work on the garage levels, our view is somewhat obscured by protective fencing. Through it, we can discern the activity at the base of the site. A network of rebar is visible, which will be encased in concrete to form floor slabs, walls, and columns. Conduits for electrical and plumbing services are also seen weaving through the site.

Looking southeast to ongoing foundational work as of this month, image by UrbanToronto Forum contributor Domenico

One Delisle will house 371 residential units and retail at grade when complete, while the parkette to its west will be expanded.

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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UrbanToronto has a research service, UrbanToronto Pro, that provides comprehensive data on construction projects in the Greater Toronto Area—from proposal through to completion. We also offer Instant Reports, downloadable snapshots based on location, and a daily subscription newsletter, New Development Insider, that tracks projects from initial application.

Related Companies:  Grounded Engineering Inc., Janet Rosenberg & Studio, MGI Construction Corp., Norris Fire Consulting Inc, Rebar Enterprises Inc, Urban Strategies Inc., WZMH Architects