Side Yard Setback Requirements for Home Additions in Burnaby

Burnaby's current R1 zoning district sets the interior side yard setback at 1.2 metres (approximately 4 feet) for residential buildings, though the exact requirement depends on the type of housing being built and the specific configuration of your lot. This regulation was established as part of Burnaby's comprehensive zoning overhaul in mid-2024, when the City consolidated all of its previous single-family residential zones (R1 through R5 and similar designations) into the new R1 Small-Scale Multi-Unit Housing (SSMUH) district to comply with BC's provincial housing legislation.

For a straightforward single-family home addition — adding a room, extending the kitchen, or bumping out the side of the house — the 1.2-metre interior side yard setback is the critical number. This is measured from the outermost face of the building (including any projections like bay windows or cantilevered sections) to the side property line. On a standard 50-foot-wide Burnaby lot, a 1.2-metre setback on each side leaves you with approximately 13.6 metres (44.6 feet) of buildable width, which is quite generous for most addition projects.

The exterior side yard setback — which applies to corner lots where one side yard faces a street — is larger, typically 3.5 metres (approximately 11.5 feet). If your property is on a corner, this larger setback on the street-facing side significantly reduces the buildable area for a side addition, and you will need to account for it early in the design process.

There are important nuances that affect how close your addition can actually get to the property line in practice. The BC Building Code imposes fire separation requirements for walls near property lines. Any wall within 1.2 metres of a property line must achieve a minimum one-hour fire-resistance rating with no unprotected openings (no windows, no doors, no vents). Between 1.2 metres and 2.4 metres from the property line, windows are permitted but may need to be fire-rated or limited in size. This means that even if the zoning bylaw allows you to build 1.2 metres from the line, placing your addition there means that side wall must be a solid, fire-rated assembly — no windows for natural light or ventilation on that face.

For many homeowners in Burnaby, this creates a practical design tension. Building close to the minimum setback maximizes interior space but eliminates the possibility of side windows, which can make rooms feel dark and closed-in. Experienced architects working on Burnaby additions often recommend pulling back to at least 1.5 to 2.0 metres from the property line to allow for windows while still maintaining a reasonable building footprint. This is especially relevant for bedrooms, where the BC Building Code requires an egress window of minimum 0.35 square metres that opens to the exterior — a requirement that cannot be met on a windowless fire-rated wall.

Certain building elements may be permitted to project into the setback area without triggering a violation. Burnaby's zoning bylaw typically allows eaves, gutters, and roof overhangs to project up to 0.6 metres into a required setback. Sills, belt courses, cornices, and similar architectural features may project a smaller distance. However, structural elements of the building — walls, foundations, decks, and stairs — must remain within the setback line.

If your addition design requires building closer than the 1.2-metre setback, you would need to apply for a development variance permit (DVP) through the City of Burnaby. This involves submitting a formal application, paying a fee (typically $1,500 to $3,000), and going through a public notification process where neighbouring property owners are informed of your proposal. Setback variances are not guaranteed — the City evaluates each request based on the impact on neighbours, the justification for the variance, and whether the reduced setback creates safety or livability concerns.

Before committing to a design, visit Burnaby's planning counter with your property address and a rough sketch of your proposed addition. Staff can confirm the specific setback requirements for your lot, identify any additional constraints (such as easements, restrictive covenants, or tree protection requirements), and advise on whether a variance would be needed. This preliminary consultation is free and can save significant money on design revisions.

---

Find a Home Addition Contractor

Vancouver Home Additions connects you with experienced contractors through the https://vancouverconstructionnetwork.com:

• Skon Design Build Ltd. ✓
• Tour De Force Construction ✓
• Vancouver Closets®︎ Ltd. ✓