Basement Apartment Permits in London, ON
Converting a basement into a legal secondary suite involves building code compliance, fire separation, egress requirements, and zoning approval.
Do you need a permit for this project?
It depends on your property, zoning, and project scope. Find out in under 2 minutes.
Estimated Fee
$206 - $2,000+ CAD
Review Timeline
15-20 business days + inspections
Status
Available Now
Did you know? Building without required permits in London can result in stop-work orders, fines, mandatory removal of completed work, and complications at resale. Requirements vary by address — your zoning and lot specifics determine what's needed.
What PermitPaths Checks for Your Basement Apartment Project
- ✓Zoning bylaws and setback requirements for your specific address in London
- ✓Whether a building permit is required for your project scope
- ✓Heritage designations and conservation authority requirements
- ✓Required documents and application forms
- ✓Estimated permit fees and review timeline
- ✓Step-by-step permit process and next steps
Get Your Permit Assessment
Enter your London address and answer a few questions about your project. Get a personalized assessment in under 2 minutes.
Check My PropertyFrequently Asked Questions
Do I need a permit for a basement apartment in London?
Yes, converting a basement into a secondary suite always requires a building permit. This involves meeting fire separation, ceiling height, egress window, plumbing, and electrical requirements under the provincial building code.
What are the requirements for a legal basement apartment?
Key requirements include minimum ceiling height (typically 1.95 m), fire separation between units, separate entrance, egress windows in bedrooms, smoke and CO alarms, and separate electrical panel. Zoning must also permit secondary suites in your area.
How long does it take to get a basement suite permit?
Basement suite permits typically take 15-20 business days for review, followed by multiple inspections at each construction stage (framing, plumbing, electrical, insulation, final). The entire process can take several months.