R-3 zoning in Coquitlam: what can you build?
Transitional Small-Scale Residential
On a standard lot with a rear lane, R-3 allows up to 4 units on a 33 × 122 ft lot (four dwelling units); up to 4 units on a 50 × 122 ft lot (four dwelling units); up to 4 units on a 66 × 122 ft lot (four dwelling units). These figures come from running BuildHere’s engine on each lot size with the Coquitlam rules for this zone.
Most units by lot size
| Lot (with lane) | Most units | Building form | Max floor area |
|---|---|---|---|
| 33 × 122 ft4,026 sq ft | Up to 4 units | Four dwelling units (fourplex) | 2,508 sq ft |
| 50 × 122 ft6,100 sq ft | Up to 4 units | Four dwelling units (fourplex) | 3,546 sq ft |
| 66 × 122 ft8,052 sq ft | Up to 4 units | Four dwelling units (fourplex) | 4,521 sq ft |
Building options on a 33 × 122 ft lot
| Option | Status | Units | Max floor area |
|---|---|---|---|
| Single detached house | Allowed | 1 | 2,443 sq ft |
| Two dwelling units (house with suite or duplex) | Allowed | 2 | 2,508 sq ft |
| Three dwelling units (triplex) | Allowed | 3 | 2,508 sq ft |
| Four dwelling units (fourplex) | Allowed | 4 | 2,508 sq ft |
Size limits for four dwelling units on a 33 × 122 ft lot
| Max floor area (FSR 0.62) | 2,508 sq ft | CQ R-3 s.1004(5) |
|---|---|---|
| Max height | 36.1 ft, 3 storeys | CQ R-3 s.1004(10) |
| Site coverage | 45% of site | CQ R-3 s.1004(6) |
| Front setback | 18.0 ft | CQ R-3 s.1004(8) |
| Side setback | 3.9 ft | CQ R-3 s.1004(8) |
| Rear setback | 3.9 ft | CQ R-3 s.1004(8) |
| Rough building footprint | up to 1,808 sq ft | Estimate, not a design |
| Parking stalls required | 4 stalls (minimum) | CQ s.706(1)(a)(i) |
Your lot will differ.
Frontage, depth, lane access, corner lots and frequent-transit areas all change the answer. Search your address for a report on the real lot in Coquitlam.
Common questions
How many units can I build in R-3 zoning in Coquitlam?
With a rear lane and outside a frequent-transit area, R-3 allows up to 4 units on a 33 × 122 ft lot (four dwelling units); up to 4 units on a 50 × 122 ft lot (four dwelling units); up to 4 units on a 66 × 122 ft lot (four dwelling units). Your own lot's frontage, depth and location change the result.
What is FSR?
Floor space ratio (FSR) is a building’s total floor area divided by the lot area. An FSR of 1.0 on a 4,026 sq ft lot allows about 4,026 sq ft of floor area across all storeys. Some bylaws, such as Burnaby’s R1, set no FSR at all; there BuildHere shows an effective FSR worked out from the height, setback and lot coverage limits.
Where do these R-3 rules come from?
From City of Coquitlam Zoning Bylaw No. 3000, 1996, Part 10, Sections 1002 to 1005 (R-1 to R-4), 2026 consolidation (rules approved 2026-10-15). Preliminary screening only. Verify with the City of Coquitlam.
Other Coquitlam zones
R-1R-2R-4RS-1RS-2RS-3RS-4RT-1RT-2RT-3RTM-1RM-1RM-2RM-3RM-4RM-4ARM-5RM-6RA-1RA-2RA-3RMH-1