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RS-1a zone in Maple Ridge
Single Detached (Amenity) Residential. Single detached residential use with a minimum lot area of 668 m2 and a house of at least 120 m2 finished floor area (s.606.1).
The rules
| Name | Single Detached (Amenity) Residential |
|---|---|
| Homes allowed | Inside the Urban Containment Boundary (Urban Infill Residential, s.402.29): up to 3 homes on lots <= 280 m2; up to 4 on lots > 280 m2 and <= 0.4 ha; up to 6 on lots within 400 m of a Prescribed Bus Stop; lots > 0.4 ha limited to 3 (house + secondary suite + detached garden suite). Not permitted in Transit-Oriented Areas (Schedule H, s.402.29.7(e)). Forms: single detached, duplex, triplex, fourplex, courtyard and townhouse (by lot area), plus secondary suite and detached garden suite. |
| Floor space notes | No maximum density; a single detached house must have at least 120 m2 finished floor area (s.606.5). Detached garden suite (s.402.11): rear yard only, 1 storey, no basement, max 140 m2 or 15% of lot area (90 m2 in ALR), height 4.5 m (6.0 m in RS-2/RS-3 or above a garage on lane lots; lots >= 0.4 ha 6.0 m). Secondary suite must be inside the principal dwelling, not strata-titled (s.402.24). |
| Height | 9.5 m (31 ft) |
| Height notes | Urban Infill principal buildings 9.5 m, accessory 4.5 m (s.402.29.6). Base zone single detached 9.5 m, accessory 4.5 m (s.606.8). No storey limit stated. Height measured to mid-point of pitched roof (>= 4:12) or top of flat roof (s.403.4). |
| Lot coverage | 60% |
| Coverage notes | Values shown are for the maximum-unit form, Urban Infill Residential with up to 6 units (s.402.29.4-6, Bylaw 8004-2024). Urban Infill up to 4 units: coverage 50%, interior side 1.2 m, exterior side 2.0 m (lots < 800 m2) or 3.0 m (lots >= 800 m2); front 5.5 m, rear 6.0 m, height 9.5 m. Single detached (base zone, s.606.6): 40%. Accessory buildings count toward coverage (s.401.4). |
| Setbacks | front 5.5 m (18 ft), side 1.5 m (5 ft), rear 6 m (20 ft), flank 3 m (10 ft) |
| Setback notes | Values shown are for the maximum-unit form, Urban Infill Residential with up to 6 units (s.402.29.4-6, Bylaw 8004-2024). Urban Infill (s.402.29.5): principal front 5.5 m, rear 6.0 m, interior side 1.2 m (<= 4 units) / 1.5 m (<= 6 units), exterior side 2.0 m (lot < 800 m2, <= 4 units) or 3.0 m (lot >= 800 m2 or 6 units); accessory front 5.5 m, rear 1.5 m, side 1.2 m. Detached garden suite (s.402.11.5): rear 2.4 m (1.5 m above a garage on lane lots), interior side 1.5 m, exterior side 3.0 m, front 5.5 m, 2.4 m from principal building. Base zone single detached (s.606.7): front 7.5 m, rear 7.5 m, interior side 1.5 m, exterior side 4.5 m. Gas right-of-way rear setback 5.0 m (lots after 1986). |
| Bylaw sections | s.606.1-606.11, 402.11, 402.24, 402.29, 402.31, 403.4 |
What you can use it for
Single detached residentialUrban infill residential (duplex, triplex, fourplex, courtyard, townhouse up to Secondary suiteDetached garden suiteBoardingHome occupationNeighbourhood daycareHobby beekeepingShort-term rental (principal residence, s.402.31)Assisted living residence
What BC law allows on these lots
- 4 homes (lots over 280 m²)143 lots
Our estimate per lot under BC's Bills 44 and 47, from lot size, transit distance and the urban boundary.
Example lots in RS-1a
No addressed lots in this zone on the map.
Other zones in Maple Ridge
RS-1RS-1bRM-1RURRS-3RM-2RS-2RM-3RM-4RM-5RST-SVRG-2RS-1dSRSRSTRGRT-2RMHRM-6RE
Read from Maple Ridge Zoning Bylaw No. 7600-2019 (consolidated to 2026-07-28) ↗, checked 2026-10-21. Summaries are our reading of the bylaw: confirm with Maple Ridge before buying or designing. Page rebuilt October 25, 2026.