Heat pumps in Saint-Hyacinthe: permits and bylaws
Planning a heat pump or an air conditioner in Saint-Hyacinthe? 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 1 m from the rear and side lot lines.
At least 1 m from the side lot lines.
Allowed for 1 or 2 dwellings (distance from the front lot line to be confirmed with urban planning). 3 dwellings or more: only if hidden on a balcony.
The unit must not be higher than the balcony railing.
Flat roof: set back at least 2.5 m from the front façade.
Good to know, and who to call.
Good to know
- Since June 15, 2026, the old bylaw 350 and the new zoning bylaw 850 both apply: the stricter rule prevails.
- PIIA (architectural review) area: a permit may be required for exterior work.
- Changing the type of heating system requires a permit.
The short answers.
Do you need a permit to install a heat pump in Saint-Hyacinthe?
No permit for a residential heat pump (outside PIIA areas).
How far from the lot lines must the unit be?
1 m from the side and rear lot lines.
Can a heat pump go in the front yard?
Yes, with conditions. Allowed for 1 or 2 dwellings (distance from the front lot line to be confirmed with urban planning). 3 dwellings or more: only if hidden on a balcony.
What is the noise limit?
Nuisance bylaw 77: no figure for heat pumps.
Who should I call to confirm before the work?
Urban planning (permits) and environment, 450 778-8300, ext. 8321.
Read at the source.
Sources: Planning bylaw 350, s. 3.6.1.2 (table 2), 15.1 to 15.3 and 17.4; zoning bylaw 850, s. 131 and 132; permits and certificates bylaw 853; nuisance bylaw 77 (checked September 30, 2026 (bylaw 850 adopted June 15, 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 Saint-Hyacinthe?
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