Secondary suites are regulated in the City’s Zoning Bylaw. To have a secondary suite, your property must first be zoned with a designation that allows secondary suites, such as R1, R2, RA1, R2, A1, and A2 Zones.
The Zoning Bylaw requires that the secondary suite:
Only one is permitted within a single-family dwelling.
Be located wholly within the primary dwelling with a separate and distinct entrance. Suites in separate buildings are considered Carriage Houses and have separate requirements.
Have a maximum floor area of 40% of the building’s habitable floor space, to a maximum of 90 square metres (968 square feet).
Meet parking requirements.
Meet BC Building Code requirements.
Meet supplemental utility charge requirements.
Be registered with the City and inspected by the Building Inspector before occupation.
The BC Building Code contains health and safety requirements for secondary suites. Some of the issues encountered during building inspection include the following:
Ceiling heights and the undersides of beams in passageways must be at least 2 m (6.6 ft).
FIRE SEPARATION BETWEEN UNITS
Minimum fire resistance rating of 45 minutes between dwelling units.
30 minute fire resistance rating is permitted when hardwired, interconnected smoke alarms are installed.
Doors separating the suites must be labelled and rated for fire separation and have a self-closing device.
Smoke alarms are required for both dwellings, near bedrooms, on every level.
If there are fuel-fired appliances or an attached garage, carbon monoxide alarms are required within 5 m (16.4 ft) of bedroom areas.
Secondary suite must have an exit door, ideally directly to the exterior. This door must be an exterior door at least 1.98m high and 81 cm wide that swings inward.
All bedrooms are required to have an opening window with a minimum clear opening area of 0.35 m² (3.8 ft²) with no dimension less than 380 mm (15 in.).
The secondary suite must have at least one primary exhaust fan on timer in the suite. This fan is usually located in the bathroom.
The secondary suite must have its own source of heating. Electric baseboard hearing is the easiest way to provide this. Additional safety features may be required for forced air heating systems.
The secondary suite must have a kitchen sink, lavatory, bathtub or shower and a water closet. The water supply line may need to be upgraded to a 19mm (3/4 in.) or larger water pipe to meet requirements. Pipes that pass through fire separation walls must be tightly fitted and sealed by a fire stop system.
Building and Licensing
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