Saanich's heat pump noise bylaw sets a hard number: a heat pump must not produce more than 50 decibels between 7 a.m. and 10 p.m., or 45 decibels between 10 p.m. and 7 a.m., measured where the sound reaches a neighbouring property in a residential area. The City of Victoria uses a general noise bylaw with similar night limits and a penalty for humming sounds. Neither has a simple "X metres from the fence" rule for houses in the documents we checked.
What does the Saanich heat pump noise bylaw say?
Saanich's Noise Suppression Bylaw, 1993, No. 7059, has a section just for heat pumps and pool or hot tub pumps (section 7). The key points, in plain English:
- Limits: no more than 50 decibels from 7:00 a.m. to 10:00 p.m., and no more than 45 decibels from 10:00 p.m. to 7:00 a.m., at a point of reception in a Quiet Zone.
- Quiet Zone covers any land in any zone under Saanich's Zoning Bylaw except industrial or commercial land with no homes on it. In practice, every residential street.
- Point of reception is any place on another parcel where the sound is received, or any place on a road.
- Heat pump is defined broadly, including air conditioners, condensers and compressors.
- How it is measured: with a sound level meter on the A-weighted scale and slow response, about 10 feet from walls or other reflecting surfaces. If the background noise is within 3 decibels of the heat pump, no measurement should be attempted.
The bylaw also contains a general prohibition on noise that "disturbs or tends to disturb" the neighbourhood, so a complaint does not always start with a meter reading.
Does Saanich have a heat pump setback?
We searched the consolidated Saanich Zoning Bylaw 8200 on saanich.ca and found no heat-pump-specific setback. Its only mention of this equipment is that heating, ventilation and air conditioning equipment on a roof is excluded from building height. Standard yard setbacks for structures in your zone may still apply to a pad or stand, so confirm with Saanich Planning before you place a unit close to a lot line.
City of Victoria: noise limits and the "hum" penalty
The City of Victoria Noise Bylaw No. 03-012 (consolidated to February 1, 2015 on victoria.ca) does not have a heat pump section. Instead, it sets limits by noise district, and most residential areas are in the Quiet District. For sound from a Quiet District received in a Quiet District:
- Daytime: 55 dBA. Daytime means 7 a.m. to 10 p.m. on weekdays and Saturdays, and 10 a.m. to 10 p.m. on Sundays and holidays.
- Nighttime: 45 dBA at all other times.
- Tonal penalty: the bylaw adds 5 dB to the measured level when a sound is tonal. Its definition of tonal sound names the "hum" of a fan or heat pump. A humming unit measured at 41 dBA at night is treated as 46, which is over the limit.
- Where it is measured: within the neighbour's property line, at least 1.2 m above the ground, at the spot that best represents where the sound is received. For steady machinery such as heat pumps, the sample period is 1 minute.
Does the City of Victoria have a heat pump setback?
We did not find a heat-pump-specific siting rule in the City's zoning general regulations available on victoria.ca (consolidated to 2019). However, the City's Board of Variance has heard requests to let heat pump units sit inside a required side yard setback (for example, an apartment on Begbie Street in 2020 asked to reduce a 3.00 m side setback to 2.28 m for new heat pumps). That means outdoor units can count against yard setbacks in at least some zones. Check your zone with City of Victoria zoning staff before you place a unit in a side yard.
Heat pump noise rules across Greater Victoria
Neighbouring municipalities set different numbers. These are the bylaws we opened on each municipality's website:
| Municipality | Bylaw | Day limit | Night limit | Siting rule found |
|---|---|---|---|---|
| Saanich | Noise Suppression Bylaw No. 7059, s. 7 | 50 dB (7 a.m. to 10 p.m.) | 45 dB (10 p.m. to 7 a.m.) | None heat-pump-specific in Zoning Bylaw 8200 |
| City of Victoria | Noise Bylaw No. 03-012 | 55 dBA (Quiet District) | 45 dBA, plus 5 dB if tonal | None found; side yard setbacks can apply |
| Oak Bay | Anti-Noise Bylaw No. 3210 (consolidated to April 28, 2025) | 50 dB(A) (7 a.m. to 10 p.m.) | 45 dB(A) (10 p.m. to 7 a.m.) | Measured from any property line; counts all heat pumps on the property together |
| Central Saanich | Noise Suppression Bylaw No. 933 (consolidated to August 28, 2025) | 60 dB (6 a.m. to 9 p.m.) | 55 dB (9 p.m. to 6 a.m.) | Zoning Bylaw No. 2270, 2026: not in a front yard; acoustic screening if 3 m or less from a side or rear property line |
Each row reflects the copy we opened on October 8, 2026. Bylaws change, so confirm with your municipality before you install near a lot line.
What does the decibel rating on a spec sheet mean?
Manufacturers publish an outdoor sound level in dB(A), usually measured at a set distance from the unit, often 1 m (check the footnote). The bylaw limit applies at your neighbour's side, so distance and surroundings matter more than the headline number.
- Distance helps. As a rough rule in open air, sound drops about 6 dB each time the distance doubles. A unit at 52 dB(A) at 1 m is roughly 46 at 2 m and 40 at 4 m.
- Walls and corners hurt. A unit tucked into an inside corner or a narrow side yard between two houses reflects sound and loses much of that drop.
- Full speed is louder. Variable-speed units are quietest at low output. An undersized unit runs flat out on cold nights, when the 45 dB limit applies. Sizing it right is a noise decision too.
How to place a heat pump so neighbours never hear it
- Start in the back yard or along your own house wall facing your own yard, not the neighbour's bedroom window.
- Measure to the lot line and note your municipality's setback and screening rules before you choose the spot.
- Avoid inside corners and narrow gaps between houses that act like an echo chamber.
- Use a ground stand with anti-vibration pads, or a wall bracket with isolation mounts on a solid wall (not a bedroom wall).
- Ask about a night or quiet mode that caps fan and compressor speed overnight.
- Screen it if needed, with a solid acoustic barrier that leaves the clearances the manufacturer requires for airflow.
- Keep it maintained. A worn fan bearing or loose panel can push a quiet unit over the limit.
If you are in a strata, the council will also want sound ratings and a placement drawing; see our guide to heat pumps for condos and stratas. If you are replacing baseboards, our baseboard to ductless conversion guide covers where heads and outdoor units typically go.
What if a neighbour complains?
Complaints go to your municipality's bylaw services, and an officer may take a reading at the neighbour's property. Fixes include a quiet-mode setting, a screen, new isolation pads, or moving the unit, which means new refrigerant line work by a licensed refrigeration contractor. Placing it well the first time is cheaper.
One central outdoor unit versus several mini-splits also changes where the noise sits; our ducted vs ductless comparison covers that trade-off. Whoever quotes your job, ask them to mark the outdoor unit location on a site sketch with its distance to the lot line. Book a free estimate or see our installation services.