Can I legally rent my basement apartment in Ontario?

Yes, but only if it meets specific legal requirements.

To legally rent a basement apartment (second unit) in Ontario, you must ensure:

Building Code Compliance

• Ceiling height: Minimum 1.95m (6'5") in habitable rooms
• Egress windows: Bedroom windows must be large enough for emergency escape (minimum 380mm × 380mm opening)
• Separate entrance: Recommended but not always required
• Fire separation: 30-minute fire rating between units
• Smoke alarms and CO detectors: In each unit

Zoning

• Since 2012, Ontario law permits second units in most residential zones
• Check your municipal bylaws for any additional requirements
• Some municipalities require registration

Permits

• Building permit required for new construction or major renovations
• Electrical Safety Authority inspection for electrical work

Fire Code

• Working smoke alarms on every level
• Carbon monoxide detectors near sleeping areas
• Clear exit paths

Converting a basement to a legal apartment typically costs $30,000-$80,000 depending on the work needed.

1. Contact your local building department
2. Hire a licensed contractor
3. Get proper permits before starting work
4. Register with your municipality if required