Heat pumps in Sainte-Marthe-sur-le-Lac: permits and bylaws
Planning a heat pump or an air conditioner in Sainte-Marthe-sur-le-Lac? Here is what the bylaws say: the permit, the distance from the lot lines, where the unit can go and the noise limit. It all comes from the official texts.

Five spots, one answer for each.
Each answer is the bylaw rule, in short. “Not specified” means the text does not say: ask urban planning.
2 m from the rear lot line and 1 m from the side lot lines.
1 m from the side lot line. In the side setback, hidden from the street by opaque landscaping or a solid fence.
Not allowed in the front yard or the secondary front yard.
Not specified in the bylaw: confirm with urban planning.
Not specified in the bylaw: confirm with urban planning.
Good to know, and who to call.
Good to know
- Corner lot: the secondary front yard is not allowed either.
- Pool heat pump: more than 1 m from the pool wall or its enclosure.
- The urban-planning bylaws were rewritten in 2025 (URB-2025 series): old references to bylaw 1400 no longer apply.
The short answers.
Do you need a permit to install a heat pump in Sainte-Marthe-sur-le-Lac?
Not specified in the permits bylaw: confirm with urban planning.
How far from the lot lines must the unit be?
1 m from the side lot line, 2 m from the rear lot line.
Can a heat pump go in the front yard?
No. Not allowed in the front yard or the secondary front yard.
What is the noise limit?
No decibel figure for heat pumps (nuisance bylaw 640 and zoning bylaw).
Who should I call to confirm before the work?
Land use planning and sustainable development department, 450 472-7310, ext. 120, urbanisme@vsmsll.ca.
Read at the source.
Sources: Zoning bylaw URB-2025-1400, s. 127 (table 7), 138 and 178; permits and certificates bylaw URB-2025-1300, s. 53; nuisance bylaw 640 (checked September 30, 2026).
Checked by AirGreen on September 30, 2026.
This page is a summary. The official bylaw prevails. Confirm with the city before the work.
A heat pump project in Sainte-Marthe-sur-le-Lac?
We come and see your property, and the estimate is free.
