Accessory dwelling units (ADU)
The Ontario Homeowner's Guide to Laneway Homes, Garden Suites & Bill 23
...access (limiting distance). You must provide a clear, unobstructed path (usually 1.0 to 1.2 meters wide) down the side of your main house from the street to the backyard for firefighters. If your side yard is too narrow, you may not be allowed to build.
The OBC: Fire access and emergency egress
The Ontario Building Co...
