Social, affordable and family housing contributions depend on two factors:

• Project location (value area, affordable housing zone)
• Project scope (residential area, number of housing units)

To promote housing starts, certain temporary rules are in force until December 31, 2026: 

• The regulatory threshold set by the by-law is raised from 450 m² to 1800 m².
• The conversion of office use to dwelling units in area 1 of the by-law (corresponding approximately to the downtown) is exempted.

How to use the tool

There are two ways to search: by lot number and by area.

The results obtained are based on the calculation values ​​of the current year. Please note that these are indexed on January 1 of each year.

Search by lot number

If you know the lot number(s) where the project will be built, this is the most effective search method. Enter one of the lot numbers and the tool will determine the area and zone where the lot is located.

Then, enter the total residential area and the number of dwelling units. The tool will calculate the required contribution for the three components.

Search by area

If you don’t know the lot number, you can select the value area in which the project will be located.

Areas

Areas are numbered from 1 to 5 and are used to calculate social, family and affordable housing contributions. If the project’s location is in more than one value area, the contribution is calculated according to the area for which the amount is higher.

Project characteristics

Once you have entered the area or lot number, you must provide the residential area and number of units for your project.