Heat pumps in Sainte-Thérèse: permits and bylaws
Planning a heat pump or an air conditioner in Sainte-Thérèse? 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.
3 m from the lot lines (1.5 m if 50 dB(A) at the lot line is shown). Hidden from the street by a screen.
3 m from the lot lines (1.5 m if 50 dB(A) at the lot line is shown). Hidden from the street by a screen.
Only for a building erected before May 1, 2023. 3 m from the lot lines, hidden from the street by a screen.
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
- Corner lot: allowed in the yards next to a street, but not inside the minimum secondary front setback.
- Window or through-the-wall air conditioner: allowed in all yards.
- The 50 dB(A) proof is the manufacturer’s spec sheet or an acoustician’s report; a sound wall is also accepted.
The short answers.
Do you need a permit to install a heat pump in Sainte-Thérèse?
Neither required nor exempted in bylaw 1206 N.S.: confirm with urban planning.
How far from the lot lines must the unit be?
3 m from the lot lines, or 1.5 m if the unit is shown to meet 50 dB(A) at the lot line.
Can a heat pump go in the front yard?
Yes, with conditions. Only for a building erected before May 1, 2023. 3 m from the lot lines, hidden from the street by a screen.
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 and sustainable development department, 450 434-1440, ext. 2208, udd@sainte-therese.ca.
Read at the source.
Sources: Zoning bylaw 1200 N.S., ch. 3, section 7, accessory constructions and equipment table, row 19; bylaw 1206 N.S., s. 40 and 66; quality-of-life bylaw 1155-3 N.S., s. 11.2 (consolidated to bylaw 1200-93 N.S. (April 22, 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 Sainte-Thérèse?
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