BC Multiplex Building Permit Guide 2025

Getting a Building Permit for a Multiplex in BC

BC’s SSMUH legislation has spurred significant interest in multiplex development. Understanding the permit process helps developers and homeowners plan their projects effectively.

BC Building Code Classification

• 2 units (duplex): Part 9 (residential, simpler code)
• 3–4 units: Part 9 if each unit under 600 sq m
• 5+ units or over 600 sq m: Part 3 (more complex commercial/multi-family code)

Permit Application Requirements

• Architectural drawings (registered architect for Part 3 projects)
• Structural engineering
• Energy compliance (BC Energy Step Code 3 minimum)
• Site plan, fire access, and parking plan

Processing Times by City

→ See also: Vancouver Renovation Permits Guide

More Laneway Homes & Multiplexes Guides

Retail Store Build-Out in Richmond: Zoning and Space

Egress Window Installation Requirements in BC: Sizes and Wells

Maximizing Space in a Laneway Home: A Practical Design Guide

Laneway Home Builders in Richmond: How to Choose the Right Builder

Laneway House vs. Basement Suite: Maximizing Rental Income in Vancouver (2026)

VGC Editorial Team

✓ Licensed Contractor500+ Projects15 Years Experience

Vancouver General Contractors has completed 500+ home renovations across Metro Vancouver since 2010. Our articles are written and reviewed by licensed contractors, project managers, and renovation specialists with hands-on field experience.

1224 renovation guides published on this site.

About VGC →