RD1 zone in Delta: Duplex/Single Detached Residential 1 Zone
Duplex and single detached housing on larger lots.
Zone rules
| Purpose | Duplex and single detached housing on larger lots. |
|---|---|
| Main uses |
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| Also allowed (secondary uses) |
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| Minimum lot area | 836 m² (duplex lot; also subdivision minimum) |
| Minimum lot width | 22 m (average lot depth 30 m) |
| Maximum lot coverage | 40% |
| Maximum density | Single detached: floor space ratio 0.25 of lot area plus 93 m². Duplex: floor space ratio 0.3 of lot area plus 93 m² |
| Maximum height | 2.5 storeys; 8 m to mid-roof or top of a flat roof; 9.5 m to roof ridge of a pitched roof |
| Maximum height, accessory buildings | 1 storey; 3 m to mid-roof or top of a flat roof; 3.75 m to roof ridge of a pitched roof |
| Front setback | 6.5 m (principal); accessory 12 m |
| Rear setback | Where average lot depth does not exceed 35 m: 7.5 m for a 1 or 1.5 storey building, 9 m for 2 or more storeys. Where average lot depth exceeds 35 m: 7.5 m (1 to 1.5 storeys) or 9 m (2 or more storeys) plus 0.6 m for each additional 1 m of average lot depth over 35 m. Accessory 1 m |
| Interior side setback | Where building depth does not exceed 18 m: 1.5 m. Where it exceeds 18 m: 1.5 m for the part up to 18 m and 3 m for the part beyond 18 m. Accessory 1 m |
| Street side setback | 3.5 m (principal); accessory 6.5 m |
| Accessory building setbacks | front 12 m, interior side 1 m, exterior side 6.5 m, rear 1 m |
| Other rules | A maximum of 1 duplex dwelling or 1 single detached dwelling per lot |
Source: Delta Zoning Bylaw No. 7600, 2017 (consolidated for reference purposes to April 21, 2026, incorporating amendments up to Bylaw No. 8552), s. 12.10 (read 2026-11-07)
Rules in the bylaw's general sections (parking, fences, suites, home businesses) also apply, and a lot can have site-specific rules. The City's consolidation is for reference purposes only; refer to the City's online version for the current consolidation. Older site-specific "CD" zones (CD1 to CD495) are still regulated by the repealed Delta Zoning Bylaw No. 2750, 1977 and are not in this document; only the CDZ zones (CDZ1 onward) are written out here. Zone pages are taken from the bylaw text by a research agent and have not yet been reviewed by a person: confirm with the bylaw before you rely on them. How answers are checked.
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