RT-1 Zoning in New Westminster — Duplex Districts (RT-1)
RT-1: Duplex Districts (RT-1) is a residential zoning district in the City of New Westminster. Two-family dwellings.
On a typical RT-1-zoned lot you can expect up to 3 dwelling units, an FSR of about 0.6, a maximum height of 7.62 m, and site coverage up to 40%. Exact figures vary with lot size, frontage, and form of development, so look up your specific address to confirm.
Up to three dwellings where the City OCP designates the lot Residential - Duplex (RD) or Residential - Ground Oriented Infill Housing (RGO): s.340.3 permits a single detached dwelling to RS-1 standards, which carries a secondary suite and, on an RD or RGO lot, a detached accessory dwelling unit. Otherwise two dwellings, as a duplex on a site of at least 557.4 m² or a house with a suite. This is not a three-unit multiplex entitlement.
Intent of the RT-1 district
Two-family dwellings.
RT-1 at a glance
| Max dwelling units | 3 |
|---|---|
| Floor space ratio (FSR) | 0.6 |
| Max height | 7.62 m |
| Site coverage | 40% |
| Zone category | Residential |
Density tiers in RT-1
| Tier | Min lot area | Max units | FSR | Max height |
|---|---|---|---|---|
| Duplex Districts (RT-1) | 557.4 m² | 3 | 0.6 | 7.62 m |
Permitted uses in RT-1
- Duplex
- single detached dwelling to RS-1 standards with a secondary suite
- conditionally a detached accessory dwelling unit
- home based business.
RT-1 zoning FAQ
What is RT-1 zoning in New Westminster?
RT-1 (Duplex Districts (RT-1)) is a residential zoning district in the City of New Westminster. Two-family dwellings.
What can you build on RT-1-zoned land in New Westminster?
Permitted uses in RT-1 include Duplex, single detached dwelling to RS-1 standards with a secondary suite, conditionally a detached accessory dwelling unit, home based business.. Permitted uses are allowed outright; conditional uses may require Development Permit Board approval.
What is the FSR for RT-1 in New Westminster?
Floor Space Ratio (FSR) in RT-1 is about 0.6. ZoneScout calculates the maximum buildable floor area for your specific lot.
How tall can a building be in RT-1?
RT-1 permits a maximum building height of 7.62 m. Height can be affected by view corridors, setbacks, and the specific form of development.
How many units are allowed in RT-1 zoning?
Up to three dwellings where the City OCP designates the lot Residential - Duplex (RD) or Residential - Ground Oriented Infill Housing (RGO): s.340.3 permits a single detached dwelling to RS-1 standards, which carries a secondary suite and, on an RD or RGO lot, a detached accessory dwelling unit. Otherwise two dwellings, as a duplex on a site of at least 557.4 m² or a house with a suite. This is not a three-unit multiplex entitlement.
Other residential zones in New Westminster
- RD-1 — Duplex Residential Districts (RD-1)
- RGO-A — Residential Ground-Oriented Infill District (4 Unit) (RGO-A)
- RGO-B — Residential Ground-Oriented Infill District (6 Unit) (RGO-B)
- RM-1 — Multiple Dwelling Districts (Garden Apartments) (RM-1)
- RM-1A — Multiple Dwelling Districts (Garden Apartments) (RM-1A)
- RM-1B — Multiple Dwelling Districts (Garden Apartments) (RM-1B)
- RM-2 — Multiple Dwelling Districts (Low Rise) (RM-2)
- RM-2A — Multiple Dwelling Districts (Low Rise) (RM-2A)
Look up a specific address in New Westminster
Source: official New Westminster zoning bylaw (PDF) · updated September 2026