BC opened the backyard — here's what that means
British Columbia has quietly become the best place in North America to add a second home to a lot you already own. Vancouver's laneway housing program has been running since 2009 and has produced thousands of laneway homes. Victoria, Kelowna, Surrey, and most Metro Vancouver municipalities run their own garden suite and carriage house programs. And the province's small-scale multi-unit housing legislation pushed every BC municipality to allow more homes on single-family lots.
If you own a single-family lot in BC, there's a good chance you can build a self-contained home in your backyard — legally, with a mortgage-financeable asset at the end of it.
Laneway home vs. garden suite
The terms get used interchangeably, but municipalities distinguish them:
Laneway home: a detached dwelling that fronts onto a rear lane. Vancouver's program is the classic example — the home addresses the lane like a small house on its own street.
Garden suite: a detached dwelling in a backyard without lane access. Surrey, Victoria, Kelowna (carriage houses), and most other municipalities use this model.
The construction is essentially identical. What differs is siting: setbacks, height limits, access requirements, and parking rules vary by program.
What your lot probably allows
Every municipality writes its own rules, but the pattern across BC looks like this:
- Lot size and coverage: most programs set a minimum lot size and cap the suite's footprint as a percentage of the lot.
- Height: usually 1 to 1.5 storeys for garden suites; Vancouver allows some 2-storey laneway configurations.
- Servicing: water, sewer, and electrical connections from the main house or the street — this is often the biggest cost surprise, so get it assessed early.
- Occupancy: long-term rental is almost universally permitted; short-term rental almost universally is not.
The only way to know for sure is to check your specific address against current bylaws — which is the first thing we do, free, for every laneway project.
Why modular changes the math
A backyard is a terrible construction site. Access is tight, materials get staged on your lawn for months, and every rain delay is a delay you live next to.
A CSA A277 modular garden suite is built and finished in a factory while your site is being prepped. It arrives essentially complete and is set by crane in days. Third-party inspectors certify it to the BC Building Code during construction, which gives your municipality a documentation package it recognizes — and gives your lender an asset it can finance as real property.
That last part matters more than most people realize: financing is where most tiny home projects die, and it's where certified modular construction quietly wins.
The financing angle
Since January 2025, Canadian homeowners adding a legal secondary suite can refinance up to 90% of their property's as-improved value through CMHC-supported programs — with the funds directed to building the suite. Your house effectively funds the home in its backyard. Read our garden suite financing guide for the details.
Where to start
Start with feasibility, not floor plans. Send us your address and we'll review zoning, siting, and servicing for your lot — free. If it's buildable, you'll know exactly what's possible before you spend anything. Start your feasibility review.