How long does a permit take and how much does it cost in Sherbrooke?

Processing time: Permit issued in 30 minutes at an in-person appointment if the documents are complete (pool, accessory building); no processing time published for other methods. Cost: Accessory building (residential): $76.25 for $0 to $5,000 of work, plus $2.50 per additional $1,000; other permits and certificates under By-law 1202.

‹ Sherbrooke rules

Sherbrooke

What are the rules for a home extension in Sherbrooke?

A permit is required (application "Extension of a main building").

Permit required

A zone, a heritage area or a shoreline can have its own standards: with your address, the Radar reads your zone's grid and tells you what applies to your property.

The rules, in short

The City has a separate permit application for extending a main building. (City permit application)
If adding a complementary or additional dwelling unit requires extending the house, the project must be approved by council (conditional use). (art. 5.3.10, 2); art. 5.3.12, 2))

Summary by Radar Foncier, in our own words: the official French text of the by-law, linked above, prevails.

Applying in Sherbrooke

Processing time: Permit issued in 30 minutes at an in-person appointment if the documents are complete (pool, accessory building); no processing time published for other methods
Cost: Accessory building (residential): $76.25 for $0 to $5,000 of work, plus $2.50 per additional $1,000; other permits and certificates under By-law 1202
Urban planning department: Borough inspectors' offices (e.g. Des Nations borough, 731 Galt Street West, suite 200: 819 821-5905)
Permits on the municipality's website

For the permit application, you will often need a site plan (certificat d'implantation) drawn up by a land surveyor: certificate of location and site plan, what to know (in French).

Other projects in Sherbrooke

Home extension elsewhere: Dorval, Gatineau, Montreal, Vaudreuil-Dorion, Westmount.

Version française de cette page

Source: Zoning and Subdivision By-law 1200 (administrative version up to March 10, 2026), French version, checked on October 22, 2026. Plain-English summary: the official French text prevails, and a by-law can change. Confirm with the Sherbrooke urban planning department before buying materials. Radar Foncier is an independent service, not affiliated with the municipality.

Radar Foncier in English. Permits and rules for Québec homeowners; the full site and the reports are in French. Version française