Downsview Airport was an airport located in Toronto, Ontario, Canada. An air field, then air force base, it has been a testing facility for Bombardier Aerospace from 1994. In 2018, Bombardier sold the facility to Northcrest Developments; in late 2023, Northcrest announced that industrial and airport operations would close by mid-2024, as redevelopment into c…Downsview Airport was an airport located in Toronto, Ontario, Canada. An air field, then air force base, it has been a testing facility for Bombardier Aerospace from 1994. In 2018, Bombardier sold the facility to Northcrest Developments; in late 2023, Northcrest announced that industrial and airport operations would close by mid-2024, as redevelopment into commercial and residential properties moves forward. The airport was listed as closed March 7, 2024. On August 17, 2024, Northcrest Developments unveiled a new identity for the 370 acres of the former Downsview Airport lands drawing on the site’s history: YZD, as the transformation kicks off.