The 405 Sherbourne Street Toronto rental development is moving forward as a major intensification project that could transform a surface parking lot into a high-rise rental community. Located just north of Carlton Street in the Cabbagetown area, the site is currently operated as a Toronto Parking Authority lot. Toronto Community Housing is now advancing plans to replace the underutilized space with a purpose-built rental tower designed to help address the city’s ongoing rental housing shortage.
This proposal reflects a broader city-wide strategy to prioritize rental supply, affordability, and density along established urban corridors. With demand for rental housing continuing to outpace supply, developments like this are increasingly becoming central to Toronto’s long-term housing strategy.

Why This Site Is Being Redeveloped
The Sherbourne Street site has been identified as a prime candidate for redevelopment due to its location, transit access, and existing planning framework. Initial plans for the 405 Sherbourne Street Toronto rental development were approved in 2021, at a time when the city was already pushing to convert low-density sites into residential uses. However, the project remained dormant for several years before resurfacing with a substantially revised proposal.
The updated application reflects changing housing priorities, including a stronger emphasis on rental tenure and family-sized units. The removal of surface parking in favour of housing aligns with Toronto’s intensification policies and its goal of making better use of city-owned land.
Building Design and Height Details
The revised proposal introduces a significantly taller and more complex structure than originally approved. The new design envisions two connected tower volumes rising to 26 and 35 storeys, reaching a maximum height of just over 120 metres. The project is being designed by Alison Brooks Architects in collaboration with architects—Alliance, bringing a contemporary architectural approach to the evolving Sherbourne corridor.
While the height may appear substantial compared to nearby low- and mid-rise buildings, the surrounding area is already slated for dramatic intensification. Several nearby developments are planned to exceed 40 storeys, positioning the 405 Sherbourne Street Toronto rental development as part of a broader transformation rather than an isolated exception.
Rental Unit Mix and Affordability
One of the most notable updates to the proposal is the increase in total rental units. The revised plan calls for 301 rental units, up from the 267 units approved in 2021. Importantly, the number of affordable rental units has increased, with 34 additional affordable homes now included in the mix.
The unit layout has also been refined to better serve families and long-term renters. Studio units have been removed entirely, while the number of two- and three-bedroom suites has increased. This shift reflects growing recognition that Toronto’s rental market needs more family-sized housing rather than just small investor-oriented units.
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Parking, Cycling, and Transportation Changes
Another major change in the 405 Sherbourne Street Toronto rental development is the dramatic reduction in vehicle parking. Parking spaces have been cut from 59 in the original proposal to just 13 in the revised plan. This reduction supports the city’s push to discourage car dependency in transit-accessible areas.
To compensate, bicycle infrastructure has been significantly expanded. The updated proposal includes 331 bicycle parking spaces, a notable increase from the 267 originally planned. The site’s proximity to transit routes and downtown amenities makes it well-suited for a low-parking, high-mobility development model.

What This Means for Toronto’s Rental Market
This proposal arrives at a critical time for Toronto’s rental market, which continues to face record-low vacancy rates and rising rents. Purpose-built rental projects like the 405 Sherbourne Street Toronto rental development are increasingly seen as essential to stabilizing housing supply, particularly when they include affordable components and larger units.
The project’s issuance of a Notice of Complete Application on November 26 signals that approvals may move quickly, potentially allowing construction to begin sooner than many comparable developments. If delivered as proposed, the project would add meaningful rental supply in a central, well-connected neighbourhood.
Final Thoughts
The 405 Sherbourne Street Toronto rental development represents a clear example of how Toronto is rethinking land use to respond to its housing crisis. By replacing a surface parking lot with a high-density, rental-focused tower, the project supports affordability, sustainability, and long-term urban growth. With increased unit counts, improved family accommodation, and reduced reliance on cars, this development reflects the evolving priorities shaping Toronto’s residential future.
For CondoTrend readers tracking rental-focused projects, this proposal is a strong indicator of where policy, planning, and investment momentum are heading in 2025 and beyond.
