Heat pumps in La Prairie: permits and bylaws
Planning a heat pump or an air conditioner in La Prairie? 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 1.2 m from the lot lines (1 m if semi-detached or row).
At least 1.2 m from the lot lines (1 m if semi-detached or row).
Not allowed in the front setback of a house (allowed for buildings with 4 or more dwellings). Corner lot: allowed in the secondary front setback, even when back to back with another corner lot.
Triplexes, buildings with 4 or more dwellings and collective housing only (not houses or duplexes).
Not allowed on the roof of a house or accessory building. Buildings with 4 or more dwellings: flat roof allowed, not visible from the street.
Good to know, and who to call.
Good to know
- Include a site plan showing the planned location with the application.
- Install on the ground or on a stand designed for this purpose.
- The city’s 2023 fact sheet also asks for the unit to be hidden from the street (opaque fence or dense hedge); the current bylaw 1250 no longer requires it: confirm with urban planning.
The short answers.
Do you need a permit to install a heat pump in La Prairie?
Certificate of authorization required before installation. Published fee: $32.
How far from the lot lines must the unit be?
1.2 m from the lot lines (1 m for a semi-detached or row single-family house).
Can a heat pump go in the front yard?
No. Not allowed in the front setback of a house (allowed for buildings with 4 or more dwellings). Corner lot: allowed in the secondary front setback, even when back to back with another 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.), measured at the lot line: not allowed.
Who should I call to confirm before the work?
Urban planning department, 450 444-6638, urbanisme@laprairie.ca.
Read at the source.
Sources: Zoning bylaw 1250, s. 140 (table, row 26), 241 and 242; permits and certificates bylaw 1252, table of works (heat pump); “Appareils de climatisation et autres appareils similaires” fact sheet (July 2023); nuisance bylaw 1077-M, s. 2.2.4 and 2.5 (zoning: consolidated up to bylaw 1250-58 (May 12, 2026); permits: consolidated up to bylaw 1252-13).
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 La Prairie?
We come and see your property, and the estimate is free.