The 10 tallest skyscrapers currently planned for Toronto

Toronto's skyline has reached new heights in recent years with the addition of the city's first pair of "supertall" towers exceeding 300 metres, and while the condo market is dwindling, there are still some ambitious proposals in the works that could further reshape the city in the years and decades to come.

Toronto's future tallest buildings include some total behemoths that would stand among the tallest in Canada if completed today, and while we don't have a crystal ball looking into the future, renderings of these planned skyscrapers offer a possible glimpse at what's to come.

Here's a look at the 10 tallest skyscrapers planned for Toronto.

191 Bay Street

With an approved height of over 374 metres (inclusive of a spire, which is totally cheating), this office tower planned for the Commerce Court complex in the Financial District would rank as Canada's tallest building if completed today.

Even if you shaved off the immense spire from the Hariri Pontarini Architects-designed building and measured by the upper parapet of the tower, its 297-metre height would rank it among the tallest in the country. However, with demand for office space still behind pre-pandemic levels, it's anyone's guess if or when this one moves forward.

Hariri Pontarini Architects

College Park 

The condo and office markets may be gutted right now, but that didn't stop developers from proposing a plan in 2025 for three massive towers above the existing College Park complex at Yonge and College streets.

A 2026 revision to the plans saw the Hariri Pontarini Architects-designed towers updated with new proposed heights of 65, 75, and 96 storeys.

The tallest of the pack is now proposed to rise over 344 metres, which would put its top floor at roughly eye level with the CN Tower's observation pod and earn it the title of Canada's second tallest building if it existed today.

Hariri Pontarini Architects

19 Bloor Street West

This pencil-thin 99-storey tower, first proposed in early 2023, could soon join a vertical billionaire's row forming around Yonge and Bloor streets.

Following the file being marked inactive by the City, the plan showed renewed signs of life towards the end of 2025 with a resubmission incorporating minor changes, including an increase in height to just over 319 metres. 

While the plan is in flux given the current condo market, it would stand as the second-tallest building in Canada if it existed today.

Arcadis

Union Park

This four-tower complex planned at Front and Blue Jays Way would feature buildings rising 71, 61, 50, and 50 storeys, featuring designs from the team of Hariri Pontarini Architects, Pelli Clark & Partners, and Adamson Associates Architects. 

The tallest of the bunch is planned to rise over 303 metres, which would rank as the city's third-tallest if it joined the skyline today.

Like many other developments on this list, the skyscraper office component remains in a state of flux awaiting favourable market conditions, though other buildings within the complex are now planned as rentals, and could move forward in the not-too-distant future.

Hariri Pontarini Architects/Pelli Clark & Partners/Adamson Associates Architects

23 Toronto Street

This planned 91-storey tower is designed to rise just over 299 metres, falling short of "supertall" status reserved for the 300-metre-plus club, but it would still be one of Canada's tallest buildings if constructed as planned. Designed by SvN, the plan calls for 840 residences, over 4,000 square metres of offices, and more than 3,500 square metres of retail space.

Approved by City Council in spring 2026, the tower would incorporate the existing protected heritage structures on-site into its base in an effort to better integrate with the existing urban fabric.

SvN

Union Centre

There hasn't been much news on this planned 54-storey office tower since 2022, but if built, it would rise to an impressive 298 metres. 

It's not enough to break any records, but this Minecraft-like design by renowned architects Bjarke Ingels Group would have matched the height of Canada's (former) tallest building had it been completed just a few years earlier.

Bjarke Ingels Group

Chelsea Green Tower 1

A major redevelopment of the Chelsea Hotel at Yonge and Gerrard has been in the works since 2015, and is currently planned with towers of 90 and 89 storeys. The taller of the two architects—Alliance-designed towers is set to rise just over 297 metres, which would rank shy of only three existing buildings in Toronto.

architects—Alliance

Pinnacle One Yonge - South

Canada's new tallest building at 1 Yonge St. could soon get some company just next door, where a pair of 80- and 85-storey towers are planned to replace the former Toronto Star headquarters.

The taller of the pair from Hariri Pontarini Architects is set to reach a height of 296 metres if built as currently planned, though you might not want to hold your breath for this development to materialize.

Just weeks after the development was tabled to City planners, it was revealed that the existing office tower on site would undergo a retrofit to become a temporary hotel, essentially shelving plans until the market picks back up.

Hariri Pontarini Architects

Chelsea Green Tower 2

Part of the same Chelsea Green mega-complex planned to eventually replace the Chelsea Hotel, the development's second tower is planned to reach a height of 290.5 metres. Just don't expect to see these towers appear overnight, as planning activity for the complex has largely fallen silent since 2023.

Sugar Wharf Condos - Phase 2

The next phase of redevelopment for the former LCBO lands on the waterfront would bring towers of 85, 78, and 70 storeys, the tallest of which would rise almost 284 metres.

architects—Alliance

Thanks to its position just north of the harbour, the architects—Alliance-designed complex promises to be among the most prominent on skyline views from the lake and islands.