Heat pumps in Saint-Denis-sur-Richelieu: permits and bylaws
Planning a heat pump or an air conditioner in Saint-Denis-sur-Richelieu? 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 2 m from the lot lines.
At least 2 m from the lot lines, hidden by landscaping.
Not allowed in the 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
- Seasonal units removed every year are not covered.
- New building in a PIIA (architectural review) sector: no mechanical equipment (heat pump, A/C) visible from the street.
The short answers.
Do you need a permit to install a heat pump in Saint-Denis-sur-Richelieu?
To be confirmed: the bylaw exempts installing a heating system but does not name heat pumps.
How far from the lot lines must the unit be?
2 m from the side and rear lot lines.
Can a heat pump go in the front yard?
No. Not allowed in the front yard.
What is the noise limit?
Bylaw G4-2019 (2019-R-255): any noise that disturbs the neighbours is prohibited, day and night; no dB figure for heat pumps.
Who should I call to confirm before the work?
Inspection department, 450 787-2244, ext. 2, inspection@msdsr.com.
Read at the source.
Sources: Zoning bylaw 2011-R-195, s. 258; permits and certificates bylaw 2011-R-198, s. 19, 27 and 38; PIIA bylaw 2022-R-285, s. 5.3; bylaw G4-2019 (2019-R-255), s. 2.3 (zoning: administrative consolidation of October 2, 2025; permits: November 2024 consolidation).
Checked by AirGreen on October 1, 2026.
This page is a summary. The official bylaw prevails. Confirm with the city before the work.
A heat pump project in Saint-Denis-sur-Richelieu?
We come and see your property, and the estimate is free.
