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QC local reference

Québec: secondary suites and ADUs need two rule checks.

Use the provincial framework, then the local zoning and permit route for each property. Browse 12 city guides.

Property address check

Find your Québec city guide by address.

Enter a street address. We’ll match it to one of the SuiteRulesCanada municipalities covered in this province and open the correct audited city guide.

Uses Natural Resources Canada’s national Geolocator to match the address. The rule result comes from SuiteRulesCanada’s audited municipal source set.

Provincial starting point

Temporary province-level right

Québec: a temporary province-level accessory-dwelling right.

Current Québec government material says one accessory dwelling may be created by enlarging or subdividing a detached single-family residence inside an urbanization perimeter despite otherwise applicable urban-planning rules. Municipal siting, construction, architectural, parking and site-development standards continue to apply.

The municipality may adopt a regulation excluding some or all of its territory from this right. The measure took effect August 21, 2024 for a five-year period. It is therefore narrower than a general right to build a detached backyard dwelling.

Québec MAMH article 93 summary (2026) ↗Québec housing strategy ↗

Provincial framework reviewed September 20, 2026. Check the municipality for any territorial exclusion and for the standards that still apply.

12 Québec city guides

DrummondvilleGeneral official routeGatineauGeneral official routeLavalGeneral official routeLongueuilGeneral official routeLévisGeneral official routeMontréalGeneral official routeQuébec CityGeneral official routeSaguenayGeneral official routeSaint-JérômeGeneral official routeSherbrookeGeneral official routeTerrebonneGeneral official routeTrois-RivièresGeneral official route