Decks
Permit requiredBrantford explicitly lists decks among projects that require a building permit.
Brantford, ON
Brantford’s Building Department reviews building-permit applications and conducts inspections for construction governed by the Ontario Building Code.
Official sources checked Sep. 24, 2026
Pick the project that matches your work. These are starting rules for Brantford; property-specific zoning, heritage and trade approvals can still apply.
Brantford explicitly lists decks among projects that require a building permit.
Brantford requires a permit for a detached garage, shed or accessory structure at 15 m² or greater; an attached shed/roof structure of any size requires a permit. A shed under 15 m² without plumbing is listed as exempt.
Brantford explicitly lists finishing a basement and adding a bedroom among projects requiring a building permit.
Brantford explicitly requires a building permit when creating additional dwelling units, including in-law suites, accessory apartments, second units and detached ADUs.
Brantford explicitly lists additions to a building among projects requiring a building permit.
Brantford requires permits for regulated interior changes such as adding bedrooms, enlarging openings and structural work, while cosmetic finishes and same-location replacements can be exempt.
Brantford explicitly requires a permit for removing a load-bearing wall, column, lintel or beam.
Brantford requires a pool permit before installing an outdoor swimming pool or hot tub capable of holding more than 450 mm of water.
Brantford requires a permit for an attached garage or carport of any size and for a detached garage/accessory structure at 15 m² or greater; configuration determines the result.
Brantford requires permits when plumbing fixtures are added or relocated and lists some same-location replacements as exempt; electrical permits are administered separately by ESA.
Brantford explicitly lists a fence as work that does not require a building permit, although fence regulations still apply.
Brantford requires a building permit for a retaining wall over 3 ft 3 in high when it is adjacent to public property or an entrance to a building; location is part of the trigger.
Brantford requires a building permit for demolition of a structure greater than 10 m² in building area.
Use the municipality’s permit office for current forms, fees, drawings and questions about your property.
Use the official permit page to confirm project requirements, forms, fees and the current application process.
Use these official links to confirm the current rule for your Brantford property.
Sources checked Sep. 24, 2026. Requirements can change; the municipality makes the final permit decision.
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