Côte Saint-Luc
Can you add a basement apartment in Côte Saint-Luc?
A dwelling unit is allowed in the basement if the basement counts as a full storey for the use class, if the total number of units allowed in the zone (RU, RB) is not exceeded and if the required parking is provided.
Permit requiredA 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
- A dwelling unit is allowed in the basement if the basement counts as a full storey for the use class, if the total number of units allowed in the zone (RU, RB) is not exceeded and if the required parking is provided. (art. 4-8)
Summary by Radar Foncier, in our own words: the official French text of the by-law, linked above, prevails.
Applying in Côte Saint-Luc
- Processing time: Up to 30 days for minor work (pool, shed, interior renovations) once the application is complete; currently longer because of high volume
- Cost: Outdoor structures (balconies, fences, garden sheds, pools): $75 per application + $11 per $1,000 of work, $150 minimum, plus a $2,500 to $5,000 deposit for damage to City property
- Urban planning department: 514 485-6800
- Permits on the municipality's website
Other projects in Côte Saint-Luc
Basement apartment elsewhere: Dorval, Gatineau, Montreal, Sherbrooke, Vaudreuil-Dorion, Westmount.
Version française de cette page
Source: Zoning By-law 2217 of the City of Côte Saint-Luc (unofficial version published by the City), French version, checked on October 22, 2026. Plain-English summary: the official French text prevails, and a by-law can change. Confirm with the Côte Saint-Luc 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