Ontario’s engineers urge Mayor Tory to support the urban redevelopment of Downsview

Today, the Ontario Society of Professional Engineers (OSPE) issued an open letter to Toronto’s Mayor John Tory requesting his support to redevelop the Downsview lands: an incredible, multi-billion dollar opportunity to Downsviewincrease Toronto’s housing supply, attract investment, create jobs and establish the city as a global centre for engineering innovation.

Spanning an impressive 375-acres, this development opportunity at Downsview supersedes previous urban development success stories such as New York’s Hudson Yards and London’s Canary Wharf (24 and 97-acres respectively).

  • Not only is its sheer size unprecedented—Downsview is also shovel-ready, presenting Toronto with a turnkey public project that complements existing infrastructure.

Unlike most urban renewal projects around the globe, developing the lands at Downsview would take advantage of existing public infrastructure stock, thereby avoiding the time and resource costs typically associated with the construction of new service and transit linkages. The Downsview lands are situated at the epicentre of three world-class universities and benefits from exceptional connections to existing subway, rail and highway transportation infrastructure.

  • Developing Downsview can improve the flow and functionality of Toronto’s transit network.

The development of the Downsview lands promises to improve ridership and the efficiency of the entire transit network by encouraging two-way passenger flows. Allowing for mixed-use development will significantly increase transit ridership by new Downsview residents and commuters.

  • To support Toronto’s strategic priorities related to housing, job creation and innovation—the timing of this opportunity couldn’t be better.

Toronto is one of the highest growth cities in the world. Year-over-year, demand for housing continues to outpace supply, creating access and affordability pressures, particularly for families.

As such, it is well understood that Toronto requires additional mixed-use developments to grow sustainably as a city. However, it is also understood that the scarcity of development lands has made it difficult to encourage mixed-use developments. Often, when land becomes available for development, the parcels are not large enough to support a mix of housing. Thus, developers have an economic incentive to almost exclusively build high-density residential towers.

Rezoning the Downsview lands for mixed development will diversify the location, density and types of housing (and employment) in Toronto, working to support the updated growth plan for the greater Golden Horseshoe region.

  • Not only will Downsview increase Toronto’s stock of mixed development, existing property owners will see their lands appreciate in value and utility.

Relocating the seldom-used Downsview airport will improve area real estate values by eliminating a visual encumbrance and reducing noise and light pollution. Furthermore, the relocation of the airport will lift existing height restrictions for neighbouring lands, encouraging greater residential and commercial development.

  • The redevelopment of Downsview will act as a catalyst for local engineering jobs and innovation.

While OSPE has always supported the Downsview Aerospace Innovation and Research (DAIR) initiative, engineers realize the greater potential that Downsview has to offer.

DAIR will remain an ongoing partnership between Centennial College and Bombardier that connects students with industry, resulting in experiential learning, ground-breaking research and the recruitment of highly-skilled graduates for well-paying jobs. It’s exactly the kind of partnership model our association envisions for engineering students and recent graduates of all engineering disciplines, across Ontario.

The availability of new lands also means the potential for an all-purpose Downsview Innovation Hub: a 21st century mixed-development community where global talent lives, works, and thrives—building our city up.


If Toronto is going to be a global player in the new economy, it needs to be a leader in the new age of engineering innovation. Support for cutting-edge innovation related to advanced manufacturing, artificial intelligence and autonomy will define the cities that succeed the next decade. Downsview is not only a natural fit for a major innovation hub, but also an opportunity to create a smart, connected community of social and economic benefit to the City.

Anchored by ongoing investments from Bombardier and Centennial College, there is already significant investment interest from multiple public and private organizations who understand the impressive potential of this project. These organizations view Downsview as the future home of innovation in Canada and OSPE could not agree more.

To view the complete letter, click here.


This Post Has 4 Comments

  1. Peter Rapin

    Don’t understand why the Society is weighing in on this. There are many potential development possibilities in the province and I question why the Society is encouraging one over the others.

    1. James LeKwok

      Downsview is mega project that Ontario’s engineers can not afford to miss out on. I support OSPE pursuing this initiative. Peter, you must agree that this project is beyond comparison anywhere in the world. It is important to our profession to speak up to make sure it is done properly from design to development.

  2. Sandro Perruzza

    Hi Peter,
    If there are others of this scale and magnitude that you are aware of, please forward them to OSPE, so that we can look at the opportunity. Regarding this particular one, OSPE was a supporter of the DAIR (Downsview Aerospace Innovation & Research) Hub and we wrote about it in a past issue of The Voice. WIth the sale of this land, there is an opportunity to increase the size and scope of the hub and expand into the role of AI and IOT, not to mention housing shortage, and mazimizing transit investments. It’s just too big an opportunity not to get involved in.

    1. Sarah B.

      Sandro is right. As an engineer in civil construction Downsview is a major industry discussion – it has the potential to be the largest project of its kind in the world, right here in the GTA. I’m happy to see the Society weighing in on this, to bring the engineering perspective to the table. We can do it bigger and better, only if our engineers are involved. Bravo, OSPE.

Leave a Reply

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.