What is FSR on a Vancouver property?

FSR stands for Floor Space Ratio — it's the number that controls how much total floor area you can build on a given lot in Vancouver.

FSR is calculated by dividing the total floor area of all buildings on your lot by the lot's total area. So if you have a 4,000 sq ft lot with an FSR of 0.70, you're allowed a maximum of 2,800 sq ft of floor space (4,000 × 0.70 = 2,800 sq ft). This applies to the combined floor area of your main house, any basement, and any secondary structures like a laneway house.

FSR is one of the most important numbers to understand before planning any addition, new build, or laneway home in Vancouver. It works alongside other zoning controls — setbacks, height limits, and lot coverage — to determine what you can actually build. You might have the FSR allowance to go bigger, but still be constrained by how close you can build to your property lines or how tall your structure can be. All four controls work together, and you need to satisfy all of them simultaneously.

How FSR varies across Vancouver depends heavily on your zoning. Under the new R1-1 Residential Inclusive Zone (Vancouver's major 2023 multiplex rezoning), most former single-family lots now have FSR allowances ranging from 0.70 to 1.0 FSR for the main dwelling, with additional FSR available for secondary suites and laneway homes. For example, a laneway house on a standard 33×120 ft lot (3,960 sq ft) is limited to roughly 0.25 × lot area — approximately 990 sq ft — and that laneway FSR is often calculated separately from the main house FSR depending on the zoning district. Higher-density zones (RM, CD, or commercial zones) can have FSR of 2.0, 3.0, or significantly higher.

For practical planning purposes, always pull your property's zoning summary from the City of Vancouver's online map at vancouver.ca/zoning-map or call 311 to confirm your exact FSR allowance before engaging an architect or designer. The zoning bylaw is the authoritative source — what your neighbour built isn't always a reliable guide, since regulations change and variances exist.

If your project exceeds the permitted FSR, you'd need to apply for a variance through the Board of Variance or a rezoning application — both of which add significant time and cost to a project. Minor relaxations (small overages) can sometimes be approved by the Board of Variance at vancouver.ca/your-government/board-of-variance, but FSR relaxations are harder to get than, say, a setback relaxation.

Your next step is to confirm your lot size, current zoning designation, and the applicable FSR from the City of Vancouver, then share those numbers with a designer or architect early in your planning process. If you're looking for experienced local designers or contractors who work with Vancouver zoning regularly, browse the Vancouver Construction Network directory to find professionals familiar with the R1-1 zone and current City requirements.