RTh3 zoning in Port Coquitlam: what can you build?
Residential Townhouse 3
On a standard lot with a rear lane, RTh3 allows about 1 unit on a 33 × 122 ft lot (townhouses); about 2 units on a 50 × 122 ft lot (townhouses); about 3 units on a 66 × 122 ft lot (townhouses). These figures come from running BuildHere’s engine on each lot size with the Port 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 | About 1 unit | Townhouses | 4,627 sq ft |
| 50 × 122 ft6,100 sq ft | About 2 units | Townhouses | 7,321 sq ft |
| 66 × 122 ft8,052 sq ft | About 3 units | Townhouses | 9,663 sq ft |
Building options on a 33 × 122 ft lot
| Option | Status | Units | Max floor area |
|---|---|---|---|
| Townhouses | Allowed | About 1 | 4,627 sq ft |
Size limits for townhouses on a 33 × 122 ft lot
| Max floor area (FSR 1.15) | 4,627 sq ft | POCO RTh3 s.2.5, Table 2.4 |
|---|---|---|
| Max height | 34.4 ft, about 3 storeys | POCO RTh3 s.Table 2.4 |
| Site coverage | 40% of site | POCO RTh3 s.Table 2.4 |
| Front setback | 24.6 ft | POCO RTh3 s.Table 2.4 |
| Side setback | 5.9 ft | POCO RTh3 s.Table 2.4 |
| Rear setback | 24.6 ft | POCO RTh3 s.Table 2.4 |
| Rough building footprint | up to 1,539 sq ft | Estimate, not a design |
| Parking stalls required | 2 stalls (minimum) | POCO s.8 |
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 Port Coquitlam.
Common questions
How many units can I build in RTh3 zoning in Port Coquitlam?
With a rear lane and outside a frequent-transit area, RTh3 allows about 1 unit on a 33 × 122 ft lot (townhouses); about 2 units on a 50 × 122 ft lot (townhouses); about 3 units on a 66 × 122 ft lot (townhouses). 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 RTh3 rules come from?
From City of Port Coquitlam Zoning Bylaw, 2008, No. 3630, Section II, Part 2 (Residential Zones: Tables 2.2, 2.3, 2.4 and Section 2.5), Current consolidated bylaw on portcoquitlam.ca, as amended through the small-scale multi-unit housing amendments (2024) and later consolidation (rules approved 2026-10-19). Preliminary screening only. Verify with the City of Port Coquitlam.