Heat pumps in Saint-Mathias-sur-Richelieu: permits and bylaws
Planning a heat pump or an air conditioner in Saint-Mathias-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.
Allowed in the rear yard, at least 2 m from the lot lines.
At least 2 m from the lot lines, hidden from the street by opaque landscaping.
Not allowed in the front yard or the secondary front yard.
Buildings with 3 or more dwellings: allowed on a balcony if it serves only one dwelling.
On the roof: only for public or industrial uses, not for housing.
Good to know, and who to call.
Good to know
- At least 30 cm from a mobile or modular home.
- Work in the shoreline or littoral zone: a separate certificate of authorization is required.
The short answers.
Do you need a permit to install a heat pump in Saint-Mathias-sur-Richelieu?
Certificate of authorization required before installation (heating system; a heat pump is also an accessory construction).
How far from the lot lines must the unit be?
2 m from every lot line.
Can a heat pump go in the front yard?
No. Not allowed in the front yard or the secondary front yard.
What is the noise limit?
Nuisance bylaw 1032: no figure for heat pumps (noise that disturbs the neighbourhood is prohibited).
Who should I call to confirm before the work?
Urban planning department, 450 658-2841, ext. 213 (inspector: ext. 202, inspecteur@st-mathias.org).
Read at the source.
Sources: Zoning bylaw 1026, s. 4.1.4 and 4.6.1 to 4.6.2; permits and certificates bylaw 1029, s. 3.1.1 and 5.1.1; nuisance bylaw 1032, s. 2.1.6 (consolidated September 23, 2026 (zoning) and September 25, 2026 (permits and certificates)).
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-Mathias-sur-Richelieu?
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