Convert Your House to a Multiplex in BC
A province-wide guide to when house-to-multiplex conversion makes financial sense, which cities allow it, and the step-by-step process to follow.
When does conversion make sense?
Not every single-family property is a good candidate for multiplex conversion. The financial case depends on your lot characteristics, local market conditions, and personal goals.
Conversion makes sense when...
- Your lot can accommodate 4+ units under current zoning
- The existing house needs major renovation ($300K+) anyway
- Local unit prices justify the construction investment
- You want to stay in the neighbourhood but unlock equity
- Your property is in a high-demand rental area
- You have equity or capital to fund the project
It may not make sense when...
- Your lot only supports 2-3 units (narrow or constrained)
- The existing house is in great condition and valuable as-is
- Local market prices do not support construction costs
- Heritage designation limits demolition
- You need to sell quickly (development takes 18-24 months)
- Significant trees or environmental constraints limit building
Cities where conversion is possible
BC's Bill 44 requires all municipalities with populations over 5,000 to allow multiplexes. Here is how implementation varies across key cities:
| City | Max Units | Min Lot Size | Avg Land Cost | Status |
|---|---|---|---|---|
| Vancouver | 6 (8 rental) | 33 ft wide | $1.8M-$3.5M | Active |
| Burnaby | 4-6 | 40 ft wide | $1.4M-$2.5M | Active |
| Surrey | 4-6 | 50 ft wide | $1.0M-$2.0M | Active |
| Coquitlam | 4-6 | 45 ft wide | $1.2M-$2.2M | Active |
| New Westminster | 4-6 | 40 ft wide | $1.1M-$1.8M | Active |
| Victoria | 4-6 | Varies | $800K-$1.8M | Active |
| Kelowna | 4-6 | Varies | $700K-$1.5M | Active |
The general conversion process
- Eligibility check — Verify zoning, lot dimensions, and constraints. VanPlex provides instant checks for BC properties.
- Financial feasibility — Run a proforma to project costs, revenue, and returns. Ensure the numbers work before spending on design.
- Demolish vs. renovate decision — For most properties, demolish-rebuild produces better economics. Get an architect's assessment of both options.
- Design and pre-consultation — Engage an architect, get a site survey, and meet with city planners to confirm requirements.
- Permitting — Submit Development Permit and Building Permit applications. Timeline: 5-9 months depending on city.
- Financing — Secure construction loan, CMHC MLI (for rental), or JV structure. Arrange during permit review to avoid delays.
- Construction — 10-14 months from demolition to completion. Regular inspections and progress draws.
- Completion — Occupancy permit, stratification if selling, and unit handover or tenant placement.
FAQs
Which BC cities allow house-to-multiplex conversion?
Under Bill 44, all municipalities with populations over 5,000. This includes Vancouver, Burnaby, Surrey, Coquitlam, New Westminster, Richmond, Victoria, Kelowna, and dozens more.
When does conversion make sense?
When your lot supports 4+ units, the existing house needs significant renovation anyway, local prices justify construction costs, and you have equity or capital available.
Do I need to move out during conversion?
Yes, in nearly all cases. The property will not be habitable during construction (10-14 months), so budget for temporary housing.
Check if your property qualifies
Enter any BC address to see zoning eligibility, estimated unit count, and preliminary project economics.