Your Burnaby lot can hold more now.
Should it?
Bill 44 and Burnaby's R1 SSMUH zoning turned most detached lots into potential three-to-six-unit sites. But permission isn't feasibility. This guide takes you from the zoning rules to the financing math to the four-path decision — in the order an owner should actually think about it.
Four reads, in the order that matters.
Burnaby R1 SSMUH Rules
The 3/4/6-unit tiers by lot size, the 400-metre frequent-transit allowance, and the October 2025 height and massing cuts — what your lot is actually allowed to hold.
Will Your Lot Pencil?
Geometry, lane access, grade, soil and trees, the real cost drivers, and the financing detail most owners miss — CMHC MLI Select's five-unit minimum.
Peat Bog & Soft Soils
Where Burnaby's soft compressible ground is, how it rewrites a multiplex foundation, and how to vet a lot before you buy. The most expensive risk is the one you can't see.
Sell, Hold, Build or Co-develop
Once you know the tier and the feasibility, the choice narrows to four paths. The independent advisory page where I model each one for your specific lot.
The honest version of "you can build a multiplex now"
Most owners hear the headline — up to six units on your lot — and run quick mental math that adds a few hundred thousand dollars to their home overnight. Sometimes the lot really did get more valuable. Often it barely moved. The difference lives in details no headline covers: whether the permitted density physically fits, whether the soil underneath needs piles, and whether the finished units sell for enough over land, financing, and a two-year carry to justify the risk.
That is why this guide is sequenced. First confirm what the R1 SSMUH rules allow on your specific lot — three, four, or six units. Then pressure-test whether it pencils against geometry, access, soil, cost drivers, and financing. Only then does the sell / hold / build / co-develop decision have real numbers behind it. Skipping to the decision is how owners overprice a lot that won't attract a builder — or underprice one that would.
What is a multiplex in Burnaby?
A multiplex is a small-scale multi-unit home — three to six dwelling units on what used to be a single-family or duplex lot. Burnaby's R1 Small-Scale Multi-Unit Housing district, in effect since July 1, 2024, is the zoning that permits them under BC's Bill 44.
Where do I start if I'm thinking about a multiplex?
Start with two questions in order: how many units does my lot's size and transit location allow, and does building those units actually pencil? This guide covers the zoning tiers first, then feasibility — site geometry, soil, cost drivers, and financing. A property-specific feasibility read is the practical first step before any listing or build.
Does every Burnaby lot benefit from the new multiplex rules?
No. The zoning permission only adds value where the development math works for a builder. Lots with poor lane access, steep grade, soft soil, or significant protected trees can still trade near traditional detached value because the multiplex plan does not close at current costs. Two lots on the same street can have very different outcomes under the same rule.
Who is Jersey Li and why this guide?
Jersey Li is a Burnaby real estate advisor and multiplex strategist with Sutton Group — 1st West Realty, and a Medallion Club member. This guide distills the feasibility read Jersey walks Burnaby owners through before they decide to sell, hold, build, or co-develop a lot under the new SSMUH rules.
