Multiplex - Design Process

3 to 6 units are now allowed on many residential lots throughout BC.

In Vancouver, plexes are allowed a density of 1.0FSR, while Net-Zero or Passivhaus plexes can achieve a bonus up to ~1.2 FSR.
In Burnaby BC and other cities, there is no FSR cap, just a limit on height and setbacks. Give us a call / email to discuss what’s possible on your lot.

See an explainer video with Lanefab co-owner Bryn Davidson, produced by HAVAN: https://www.youtube.com/watch?v=lfB91D8SQw4


Step 1a - The Massing Study

A digital architectural rendering of a modern multi-story residential building with large glass windows, balconies, and a mix of flat and pitched roof sections, surrounded by trees and parked cars.

Step 1b - Explore Massing with Density Bonuses (Vancouver)

Architectural rendering of different housing options with detailed specifications, including Net Zero Duplex, Code Min 4 Plex, Net Zero 3 Plex, and Net Zero 4 Plex, with roof solar panels, trees, and street parking, labeled with FSR ratios, on a sidewalk with the website lanefab.com.

Step 1c - Detailed Concept Model


Step 1d - Preliminary Cost Estimate

Step 2 - Engineering and Permit Drawings

Step 3 - Construction Documents, Costs and Final Specs