R4-B Zoning in Chilliwack - Low Density Multi-Unit Secondary Suite
R4-B: Low Density Multi-Unit Secondary Suite is a residential zoning district in the City of Chilliwack. Townhouse development where each unit may carry its own accessory suite.
On a typical R4-B-zoned lot you can expect an FSR of about 0.75, a maximum height of 10 m, and site coverage up to 50%. Exact figures vary with lot size, frontage, and form of development, so look up your specific address to confirm.
Density is 40 townhouse or duplex units per hectare (s.8.10(4)), and each may contain one townhouse accessory dwelling unit, so a fully built site reaches roughly twice the density figure in dwelling units. R4-B is not one of the zones Chilliwack's small-scale multi-unit housing rules extend to.
Intent of the R4-B district
Townhouse development where each unit may carry its own accessory suite.
R4-B at a glance
| Floor space ratio (FSR) | 0.75 |
|---|---|
| Max height | 10 m |
| Site coverage | 50% |
| Zone category | Residential |
Density tiers in R4-B
| Tier | Min lot area | Max units | Base FSR | Bonus FSR | Max height |
|---|---|---|---|---|---|
| Low Density Multi-Unit Secondary Suite | 1200 m² | - | 0.75 | - | 10 m |
Permitted uses in R4-B
- Duplex
- Townhouse
R4-B zoning FAQ
What is R4-B zoning in Chilliwack?
R4-B (Low Density Multi-Unit Secondary Suite) is a residential zoning district in the City of Chilliwack. Townhouse development where each unit may carry its own accessory suite.
What can you build on R4-B-zoned land in Chilliwack?
Permitted uses in R4-B include Duplex, Townhouse. Permitted uses are allowed outright; conditional uses may require Development Permit Board approval.
What is the FSR for R4-B in Chilliwack?
Floor Space Ratio (FSR) in R4-B is about 0.75. ZoneScout calculates the maximum buildable floor area for your specific lot.
How tall can a building be in R4-B?
R4-B permits a maximum building height of 10 m. Height can be affected by view corridors, setbacks, and the specific form of development.
How many units are allowed in R4-B zoning?
R4-B sets density as a rate rather than a fixed number of units per lot: Density is 40 townhouse or duplex units per hectare (s.8.10(4)), and each may contain one townhouse accessory dwelling unit, so a fully built site reaches roughly twice the density figure in dwelling units. R4-B is not one of the zones Chilliwack's small-scale multi-unit housing rules extend to. Look up your specific address for what that works out to on your lot.
Other residential zones in Chilliwack
- EV - Ecovillage
- HR - Hillside Residential
- M1-A - Residential Light Industrial
- R - Rural
- R1-A - Urban Residential
- R1-B - Urban Duplex Residential
- R1-C - Urban Infill
- R2 - Urban Residential Transition
Look up a specific address in Chilliwack
Source: official Chilliwack zoning bylaw (PDF) · updated September 2026