Short answer: usually, yes. In Ontario, most basement finishing projects that add walls, plumbing or ductwork need a building permit. Electrical work needs a separate permit from the Electrical Safety Authority (ESA).
Work that usually needs a building permit
- Building new walls and rooms
- Adding or moving plumbing, like a bathroom, wet bar or kitchenette
- Changing heating or ventilation ductwork
- Cutting a new window or door into the foundation
- Creating a basement apartment or second unit
Work that usually doesn't
- Painting and decorating
- Replacing flooring
- Replacing cabinets or trim without changing plumbing or walls
When in doubt, check with your municipality. Rules can change, and every project is different.
Who issues permits in Oxford County
Building permits come from your local municipality, not the county. In Oxford County, that's:
- City of Woodstock for Woodstock
- Town of Ingersoll for Ingersoll
- Town of Tillsonburg for Tillsonburg
- Township of Norwich for Norwich, Otterville and Burgessville
- Township of East Zorra-Tavistock for Tavistock and Innerkip
- Township of Zorra for Embro and Thamesford
- Township of South-West Oxford for Beachville and Mount Elgin
- Township of Blandford-Blenheim for Drumbo, Plattsville and Princeton
Why it's worth getting the permit
- Safety. Inspections check things like fire safety, egress windows, smoke alarms and electrical work.
- Insurance. Unpermitted work can cause problems if you ever make a claim.
- Selling. Buyers and their lawyers may ask whether the basement was permitted.
Who handles it?
Most basement contractors apply for the permit and book the inspections as part of the job. Ask about it when you get your quote. Send the form at the top of this page and we'll connect you with a contractor who knows the process in your municipality.