RT-1 zone in New Westminster: Duplex Districts

New Westminster, British ColumbiaDraft, not yet reviewedBylaw read 2026-11-07

In short

Two-family (duplex) dwellings.

Zone rules

Purpose	Two-family (duplex) dwellings.
Main uses	Single detached dwellings to RS-1 standards (detached accessory dwelling units only on lots designated (RD), (RGO), (RLM) or (RMR) in the Official Community Plan) Duplexes Golf courses (minimum 40 acres / 16.19 hectares) Home based businesses Public utilities
Also allowed (secondary uses)	Accessory buildings and uses Keeping of up to two boarders or lodgers, four foster children or eight child care children within a dwelling unit
Minimum lot area	6,000 square feet (557.40 square metres) for any lot created after October 25, 1948; a duplex is only allowed on a lot of 6,000 square feet or more; a single detached dwelling may be built on a smaller lot
Minimum lot width	Frontage of not less than 10% of the lot perimeter
Maximum lot coverage	40% (principal buildings in total)
Maximum density	Floor space ratio up to 0.6
Maximum height	25 feet (7.62 metres)
Maximum height, accessory buildings	Detached: one storey, 4.57 metres (15 feet) for a peaked roof or 3.6 metres (12 feet) for a roof pitch of 4:12 or less. Attached: one storey, 15 feet (4.57 metres)
Front setback	20% of the depth of the site, up to 25 feet (7.62 metres)
Rear setback	20% of the depth of the site, up to 25 feet (7.62 metres)
Interior side setback	Lots with frontage of 40 feet (12.19 metres) or more: 10% of site width on each side, maximum 5 feet (1.52 metres). Lots with frontage of 40 feet (12.19 metres) or less: at least 4 feet (1.22 metres)
Accessory building setbacks	Detached accessory buildings: not in the required front yard; 5 feet (1.52 metres) from rear or side site lines bounded by a street; swimming pools 5 feet (1.52 metres) from side and rear site lines; 15 feet (4.57 metres) from the corner at a street and lane; 22 feet (6.71 metres) less lane width from a lane
Other rules	Detached accessory buildings may not cover more than 10% of the site area Secondary suites are not permitted

Source: Zoning Bylaw No. 6680, 2001 (consolidated as of June 8, 2026), s. 340 (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 publishes the complete bylaw as a single PDF, consolidated as of June 8, 2026; it also publishes each part separately. The saved text includes the list of amendments and appendices. 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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