---
title: "R1-B zone in Chilliwack: Urban Duplex Residential"
place: Chilliwack, British Columbia, Canada
place_path: ca/bc/chilliwack
zone: R1-B
bylaw: Zoning Bylaw 2020, No. 5000 (City's consolidated copy, includes amendments through Bylaw 2026, No. 5592, October 20, 2026)
bylaw_read: 2026-11-07
review: draft
canonical: "https://govhandbook.com/ca/bc/chilliwack/zoning/r1-b/"
json: "https://govhandbook.com/ca/bc/chilliwack/zoning/r1-b.json"
---

# R1-B zone in Chilliwack: Urban Duplex Residential

Main uses: Duplex.

## Zone rules

- **Main uses:** Duplex
- **Also allowed (secondary uses):** Accessory Home Occupation; Boarding; Off-Street Parking; Supportive Recovery Home; Urban Ancillary Uses
- **Minimum lot area:** 630 m² (duplex)
- **Minimum lot width:** 20 m (minimum lot depth 25 m)
- **Maximum lot coverage:** Urban ancillary uses: 45 m² per dwelling unit
- **Maximum density:** Floor area ratio 0.6; 1 structure for principal residential use per lot
- **Maximum height:** 10 m (residential use)
- **Maximum height, accessory buildings:** 4 m (urban ancillary uses on a lot under 1000 m²); 6 m (lot 1000 m² or greater)
- **Front setback:** 6 m
- **Rear setback:** 7.5 m
- **Interior side setback:** 1.2 m
- **Street side setback:** 4.5 m
- **Accessory building setbacks:** Urban ancillary uses: front 6 m, rear 1 m, interior side 1 m, exterior side 4.5 m
- **Other rules:** A structure with a principal residential use must be at least 6 m wide overall, excluding additions and projections; A residential use is allowed only if the lot is connected to both a community water system and a community sanitary sewer system

## Source

- [Zoning Bylaw 2020, No. 5000 (City's consolidated copy, includes amendments through Bylaw 2026, No. 5592, October 20, 2026), s. 8.02](https://www.chilliwack.com/main/attachments/attachView.cfm?attachID=6624#page=116) (read 2026-11-07)

Rules in the bylaw's general sections (parking, fences, suites, home businesses) also apply. All zones in Chilliwack: https://govhandbook.com/ca/bc/chilliwack/zoning/index.json

_Draft: taken from the bylaw text by a research agent and not yet reviewed by a person. Gov Handbook is an independent guide. Canonical page: https://govhandbook.com/ca/bc/chilliwack/zoning/r1-b/_