The framework in one paragraph
Permits are governed by the Building Code Act, 1992 and the Ontario Building Code (O. Reg. 163/24, the 2024 Code), which set minimum standards for health, safety, fire protection and structure. Enforcement is delegated to your municipality and its Chief Building Official, who issues permits and sends inspectors at defined stages of the work. By law, an inspector must generally attend within two working days of being told the work is ready.
What needs a permit
- Any new building larger than 10 square metres (about 108 sq ft)
- Additions, structural alterations, or renovations to an existing building
- Changing a building's use (including adding a basement apartment)
- Excavating or building a foundation
- Installing, changing, or removing plumbing
- Adding or materially altering heating and HVAC systems
- Installing or altering a septic system
In renovations, the common triggers are removing or modifying load-bearing walls, adding beams, altering floor or roof framing, new plumbing runs, and enlarging window or door openings in structural walls.
What usually doesn't
Cosmetic work that touches no structure or building system: painting, flooring, trim, replacing cabinets or countertops without plumbing changes, like-for-like fixture swaps, minor repairs. The caveat that matters: the Chief Building Official has the final say, and both the Province and every building department tell you to ask before starting. We make that call for you, in writing, as part of every quote.
Brantford vs. Brant County: two different departments
The City of Brantford and the County of Brant are separate municipalities with separate building divisions. Brantford runs all applications and inspection bookings through the cloud-based Cloudpermit system via Build Brantford. The County of Brant publishes its own permit packages, including a Residential Additions and Renovations Permit Package and a Small Residential Projects guide. Paris, St. George, Burford and Mount Pleasant are all County of Brant. Your project's address decides the process, and we handle either.
"Every 'you don't need a permit' I've ever heard translated to 'I don't want an inspector seeing my work.' The permit costs a few hundred dollars and a bit of schedule. The inspector is free quality control on your side of the table. Take the free help."
Mitch Fraser, owner, Ontario Contracting Co.
What unpermitted work really costs
Under the Building Code Act, building without a required permit is an offence: individuals face fines up to $50,000 for a first offence and up to $100,000 after that; corporations up to $500,000. The practical consequences usually hurt more than the fines:
- Stop-work orders that freeze your half-finished project
- Orders to uncover, remove, or rebuild non-compliant work at your cost
- Insurance claims denied when unpermitted work contributed to a loss
- Stalled or collapsed home sales when the buyer's lawyer finds the unpermitted addition
Notice who carries all four: the homeowner. The contractor who saved two weeks by skipping the permit is long gone by the time any of this lands.
In this hub
- Building permits in Brantford: the Cloudpermit walkthrough
- County of Brant permits: the residential package explained
- What renovations need a permit in Ontario: the full trigger list
- What happens if you renovate without a permit
- Basement apartments and secondary suites in Brantford: the rules
- Government of Ontario, Citizen's guide to building permits: ontario.ca/document/citizens-guide-land-use-planning/building-permits
- Building Code Act, 1992 and Ontario Building Code, O. Reg. 163/24 (2024 Code)
- Build Brantford, Building Permits and Cloudpermit: buildbrantford.ca
- County of Brant, Small Residential Projects and permit packages: brant.ca