Heat pumps in Saint-Constant: permits and bylaws
Planning a heat pump or an air conditioner in Saint-Constant? 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.
At least 0.1 m from the lot lines.
At least 0.1 m from the lot lines.
Not allowed in the front yard. Allowed in the secondary front yard of a corner lot.
Buildings with 4 or more dwellings: one unit per dwelling, no more than 0.5 m from the wall, on the side or rear balcony if there is one.
Buildings with 4 or more dwellings: a roof unit must not be visible from a street or a public park.
Good to know, and who to call.
Good to know
- A permit is required if the property is in a heritage zone or covered by the Cultural Heritage Act (s. 37).
- Buildings with 4 or more dwellings: no unit on the walls, unless it blends in by its colour or is hidden behind an architectural feature.
- Pool heat pump: at least 1 m from the pool wall (s. 274).
The short answers.
Do you need a permit to install a heat pump in Saint-Constant?
No permit required, except in a heritage zone.
How far from the lot lines must the unit be?
0.1 m from the lot lines.
Can a heat pump go in the front yard?
No. Not allowed in the front yard. Allowed in the secondary front yard of a corner lot.
What is the noise limit?
Over 55 dB by day (7 a.m. to 9 p.m.) or 50 dB at night (9 p.m. to 7 a.m.) at the complainant’s lot line: not allowed.
Who should I call to confirm before the work?
Urban planning department, 450 638-2010 ext. 7410, urbanisme@saint-constant.ca.
Read at the source.
Sources: Zoning bylaw 1528-17, s. 206 (table 1, line 30) and 297; permits and certificates bylaw 1789-22, s. 37; nuisance bylaw 1010-01, s. 3.2.4 and 3.3 (zoning (ch. 5): updated September 2, 2026; permits: consolidated September 30, 2025).
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 Saint-Constant?
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