Calculating your contribution for social, affordable and family housing

Last updated June 10, 2024

Are you a real estate developer who is planning a residential project in Montréal? Would you like to understand your obligations under the By-law for a Diverse Metropolis. Get an overview with our online service.


Real estate developers must make commitments to the city to contribute to the supply of social, affordable and family housing in Montréal.

A contribution is required for projects whose residential area is greater than 450 m2 (equivalent to approximately five dwellings).

Use our calculation tools to find out which requirements are applicable to your project.