Do You Need a Permit to Finish a Basement in Ontario? A City-by-City Answer

Do you need a permit to finish a basement in Ontario? Which work needs one (walls, bathroom, bedroom, electrical) and how it works city by city.
Legal Basement Apartment Requirements in Ontario (2026): Ceiling Height, Egress, Fire Separation, Permits

Legal basement apartment requirements in Ontario: 1.95 m ceilings, egress windows, 30-minute fire separation, interconnected alarms, permits and registration.