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RT-B zone in New Westminster

Townhouse Residential District (RT-B). Allow townhouses on sites that also allow single detached dwellings and secondary suites (no laneway house) (s.406.1).

Find lots in New Westminster How many homes can I build in New Westminster?

7lots in this zone on the map

626 m²median lot size (6,738 ft²)

514–668 m²smallest to largest lot

12 mmaximum height (39 ft)

The rules

Name	Townhouse Residential District (RT-B)
Homes allowed	Townhouses as in RT-A; single detached houses follow NR-2 or RS-2 (no DADU) (s.406.2).
Floor space ratio	1.2
Floor space notes	FSR 1.2 (s.405.14), on gross site area; excludes up to 3.23 m2 mechanical room per unit, underground parking, areas 1.22 m or lower, common amenity up to 5% (s.405.7).
Height	12 m (39 ft)
Height notes	Peak height 12.0 m (peaked) or 11.0 m (pitch 4:12 or less) from averaged existing grade (s.405.20).
Lot coverage	50%
Coverage notes	Building coverage 50% (s.405.16 building coverage); impervious surfaces max 65%; pervious at least 35%; planted site space at least 15% (s.405.16-405.19). Detached accessory buildings max 15%.
Setbacks	front 3.5 m (11 ft), side 1.22 m (4 ft), rear 7.62 m (25 ft), flank 3.5 m (11 ft)
Setback notes	Front 3.5 m, rear 7.62 m, interior side 1.22 m, exterior side 3.5 m; max building length 38.1 m (s.405.20).
Bonus density	No density bonus. Parking: 1.0 per principal unit, 0.5 per suite, 0.1 visitor per unit on sites with 10+ units (Mainland) (s.140.9 as amended).
Bylaw sections	s.406.1-406.2 (RT-A rules; Bylaw 8524, 2025)

What you can use it for

TownhousesSingle detached dwelling (NR-1 or RS-1 rules)Secondary suiteHome based businessFoster/child careWomen's transition housePublic utilities

What BC law allows on these lots

6 homes (near frequent transit)6 lots
4 homes (lots over 280 m²)1 lots

Our estimate per lot under BC's Bills 44 and 47, from lot size, transit distance and the urban boundary.

Example lots in RT-B

No addressed lots in this zone on the map.

Other zones in New Westminster

RGO-A RM-4 RGO-B RM-6B RM-2 RM-5A RS-1 RQ-1 RM-6A NR-1 RS-2 RMW-2A RM-2A RT-A RMW-3B RT-3A RT-3 RMW-3 NR-2 RT-2D RS-4 RT-1 RM-1A RM-1 RQ-5 RT-2E RT-2B RM-5 RS-5 RT-2F RT-3B RW-1 RS-6 RT-2 RM-6 NR-5

Read from New Westminster Zoning Bylaw No. 6680, 2001 (section consolidations to 2025-05-26, plus adopted amendments Bylaw 8524 (Townhouse Zoning Update) and Bylaw 8578, 2026 (Infill Housing Program, footer-dated 2026-06-08); official consolidation to 2025-11-17 not retrievable) ↗, checked 2026-10-21. Summaries are our reading of the bylaw: confirm with New Westminster before buying or designing. Page rebuilt October 25, 2026.