Heat pumps in Saint-Eustache: permits and bylaws
Planning a heat pump or an air conditioner in Saint-Eustache? 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 0.5 m from any lot line.
At least 0.5 m from any lot line.
Not allowed in the zone’s minimum front setback. Allowed beyond that setback (s. 6.1.1.1).
Multi-family only: a unit serving a single dwelling, not visible from any street.
Roof allowed only for commercial, industrial and public uses.
Good to know, and who to call.
Good to know
- Mounted on the ground or on a support designed for that purpose.
- The minimum front setback is set in each zone’s specifications grid.
- Corner lot: allowed in the secondary front setback (s. 5.4.2.3).
The short answers.
Do you need a permit to install a heat pump in Saint-Eustache?
No permit required.
How far from the lot lines must the unit be?
0.5 m from the side and rear lot lines.
Can a heat pump go in the front yard?
Yes, with conditions. Not allowed in the zone’s minimum front setback. Allowed beyond that setback (s. 6.1.1.1).
What is the noise limit?
Over 50 dBA at the complainant’s lot line: not allowed (when background noise is under 50 dBA).
Who should I call to confirm before the work?
Urban planning department, 450 974-5000, info.urbanisme@saint-eustache.ca.
Read at the source.
Sources: Zoning bylaw 1675, ss. 5.4.2, 6.1.1 and 6.1.1.1; noise bylaw 1496, s. 3.2; City “Habitation” page (chapter 6 current to October 21, 2025 (bylaw 1675-429)).
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-Eustache?
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