ADUs in Toronto

Additional dwelling units in Toronto

Ontario now lets most residential lots hold up to three dwelling units as-of-right — your main house plus two more. An ADU can be a basement apartment, a rear or upper addition, or a detached laneway or garden suite. We help Toronto homeowners choose the right strategy and design it to code and zoning.

Ways to add an ADU

• Basement or garden-level suites
• Interior conversions and additions to the main house
• Detached laneway and garden suites
• Combinations that reach the full three-unit potential

One plan, maximum value

The most valuable ADU projects start with a feasibility study that compares your options on cost, income, and approvals. As registered architects we map the full picture first, then deliver permit-ready drawings and guide the project through the City of Toronto. The payoff is more usable space and stronger long-term property value.

Serving Toronto and the GTA from our Scarborough studio.