Coach House & Garden Suite Construction in Langley, BC

Coach Houses and Garden Suites in Langley

Langley permits detached suites — including detached garden suites (accessory dwelling units) and coach houses — through its small-scale multi-unit housing (SSMUH) framework, a practical way to add family or rental housing, particularly on the area's larger suburban and semi-rural lots.

Pro 1 Construction builds these as full, code-compliant homes, planned around the local rules and the realities of each lot. Note that “Langley” includes both the Township of Langley and the City of Langley, which have separate rules — confirm which applies to your address.

Quick Answer: SSMUH in the Township of Langley

The Township of Langley adopted SSMUH zoning on November 18, 2024, allowing small-scale housing throughout the municipality subject to eligibility. Eligible properties must be within the Urban Containment Boundary, connect to both municipal water and sewer, have no heritage designation, fall outside Transit-Oriented Areas, and not exceed 4,050 m² (one acre). Crucially, the Township has deferred new water and sewer connections for SSMUH pending a capacity review, so confirm servicing for your lot early with the municipality.

Township of Langley SSMUH Rules

According to the Township of Langley:

• What's permitted: Secondary suites, detached garden suites (accessory dwelling units), duplexes, and three- to four-plexes, subject to eligibility.
• Eligible properties: Must be within the Urban Containment Boundary, connect to municipal water and sewer, have no heritage designation, be outside Transit-Oriented Areas, and not exceed 4,050 m² (one acre).
• Units by lot size: Three units on lots of 280 m² or smaller, and four units on larger lots (up to the 4,050 m² maximum).
• Secondary suites: The BC Building Code permits only one secondary suite per dwelling unit.
• Servicing review: The Township directed that new water and sewer connection or extension requests for SSMUH be deferred until a comprehensive capacity review is complete — confirm the current status before relying on a connection.

Suburban and Semi-Rural Lots

Larger suburban and semi-rural Langley lots often have room and access for a detached suite, but driveway routing, grade, and staging still need planning, along with protecting the existing home and landscaping. Because SSMUH eligibility hinges on municipal water and sewer (and the Township's servicing review), confirming servicing is one of the most important early steps for a Langley project.

Work With a BC Housing Licensed Residential Builder

A standalone coach house or garden suite may be considered a new home under BC's Homeowner Protection Act, which makes builder licensing and home warranty insurance part of the planning process. Pro 1 Construction is a BC Housing Licensed Residential Builder and carries 2-5-10 home warranty coverage for applicable new-home construction projects, subject to the warranty provider, policy terms, limits, and exclusions.