Duplex, Triplex and Fourplex
Plans in Ottawa
As Ottawa embraces gentle density and infill housing, multi-unit homes like duplexes, triplexes, and fourplexes have become a smart solution for maximizing property value and meeting growing housing demand.
At R. Viau Drafting & Design, we specialize in designing clear, code-compliant multi-unit building plans tailored to fit urban lots while respecting zoning bylaws, lot coverage, and building height restrictions.
Whether you're a homeowner, builder, or developer, our custom plans are optimized for permits, efficiency, and long-term livability - helping you transform your property into a high-performing, multi-family investment.
We have built residential buildings in all of Ottawa and surrounding areas.
Bill 23 in Ottawa
Bill 23, officially known as the More Homes Built Faster Act, is a piece of provincial legislation passed in Ontario, Canada, in 2022. The purpose of the bill is to accelerate the construction of new homes in the province, with the goal of addressing Ontario's housing affordability crisis.
Before Bill 23, property owners were only able to build two (2) units on their property.
After Bill 23, property owners are now able to build three (3) units on their property.
Permit Plans Process
Site Analysis and Preliminary Design
Conduct an analysis of the site to understand its topography, zoning requirements, and local infrastructure. Develop initial design concepts that meet these parameters.
Create Detailed Drawings
Develop the full set of drawings including site plans, floor plans, elevations, structural designs, and MEP layouts
Permit Submittal
Submit the plans to the city for review. If the project requires a variance, this will likely involve public hearings or consultation periods where neighbors or community members may voice concerns.
Revise and Address Feedback
The city may request revisions to the plans based on safety, environmental, or zoning concerns. We will adjust the plans as needed to address these feedbacks.
Obtain Permits
Once the plans are approved, obtain the necessary permits to begin construction.