Secondary dwelling unit permit / Green Building & Sustainable Home Renovation Information & Advice

Modern two-story laneway house with garage and living space in Toronto GTA ON
Accessory dwelling units (ADU)

The Ontario Homeowner's Guide to Laneway Homes, Garden Suites & Bill 23

...units per lot The most important thing for Ontario homeowners to know is that you likely have 'as-of-right' permission to build. Under provincial legislation, most residential lots connected to municipal water and sewage are now permitted to have: Three total units: Typically the main house, a secondary suite (basemen...