1 delisle avenue toronto

New tower unlike anything else in Toronto is starting to rise into skyline

A rising tower just north of St. Clair subway station is shaping up to be an impressive new landmark for midtown Toronto.

Slate Asset Management and Globizen Group's long-awaited One Delisle project is fast rising from its site along Yonge Street and has begun to reveal its unique geometric form in the process.

The 44-storey condo building boasts a design by internationally acclaimed Chicago-based architecture firm Studio Gang that will look like nothing else on the Toronto skyline and serve as a grand entrance to Canada for the company, being its first building in the country.

Gang describes the project as "tuned to Toronto's climate and lifestyle," highlighting the tower's "distinctive facade [that] comprises a series of eight-story, hooded modules, which nest together as they spiral up the building."

1 delisle avenue toronto

Studio Gang

Work on the project commenced in mid-2022 with shoring and excavation followed by foundation work. However, construction hit a snag in spring 2024 when it reached street level. 

Still awaiting permits for above-ground construction, Globizen Group founder Brandon Donnelly took to his personal blog to shame the City, calling out a convoluted process that was holding back progress on the new build — and it worked.

With permits finally issued in May, construction has since pressed forward at full steam, and the tower is now quickly making an impact on Yonge Street.

1 delisle avenue toronto

Donnelly, who visits the construction site weekly, wrote in his blog back in October that "the geometry of the tower is starting to come through in the slab edges," noting that architects made sure to remind him on-site that "they had to draw each and every one of these."

In November, he elaborated, writing that "no two floors are the same."

"The tower is constantly changing as it transforms from a square at its base to a hexadecagon (16-sided) shape at its top," wrote Donnelly.

1 delisle avenue toronto

In that recent blog post, Donnelly explains that the tower core is one specific element of the building's floor plate that does repeat. This interior portion that will contain elevator cores and stairwells is being constructed with the help of an automatic climbing system that raises the concrete formwork from floor to floor and allows levels to take shape at an impressive rate.

1 delisle avenue toronto

One Delisle will eventually top out at a height of 155 metres.

While taller than anything that exists in this neighbourhood today, it is just one of several new towers that promise to bring increased density to the area in the coming years.

1 delisle avenue toronto

The project will add 371 condominium units to the Yonge and St. Clair area once construction wraps up, currently anticipated for 2026.

Photos by

Fareen Karim


Latest Videos



Latest Videos


Latest in Real Estate

Completely gutted Toronto house going for almost $3 million

Enormous towers could replace Toronto lot that has sat abandoned for years

$2 million Toronto traditional home surprises with rainbow interiors

Notorious slumlord known for Toronto's worst apartment 'finally' getting jail time

Toronto just approved a new 91-storey megatower

A hidden townhouse in Toronto just hit the market for $2 million

Toronto mall getting huge transformation and demolition has already begun

Construction begins on new Science Centre at Ontario Place