Decks
Permit requiredWindsor lists decks among construction or alteration projects that require a building permit.
Windsor, ON
Windsor says building permits are required for new construction, additions, alterations, renovations, relocations and many repairs.
Official sources checked Sep. 24, 2026
Pick the project that matches your work. These are starting rules for Windsor; property-specific zoning, heritage and trade approvals can still apply.
Windsor lists decks among construction or alteration projects that require a building permit.
Windsor’s main permit page says freestanding structures over 10 m² require a permit, while Ontario’s expanded small-storage-shed exemption can apply to qualifying sheds.
Windsor requires permits for many renovations and for basement/main-floor walkouts, but the current main page does not support a blanket yes/no for every basement finishing scope.
Windsor’s Additional Dwelling Unit guidance requires a building permit for creation of an additional dwelling unit.
Windsor lists one- or two-storey additions among projects requiring a building permit.
Windsor requires permits for alterations and renovations that affect regulated building systems or construction; minor repairs can be exempt.
Windsor lists structural alterations to windows/doors and adding or removing most walls among permit-required projects.
Windsor lists swimming pools among projects requiring a building permit.
Windsor lists carports and attached or detached garages among projects requiring a building permit.
Windsor lists furnace replacements, plumbing/drains and major duct-work changes among permit-required projects; the exact route depends on the trade scope.
Windsor explicitly lists fences as not requiring a building permit, except masonry, concrete and similar fence construction that should be confirmed with the department.
Windsor’s permit material identifies retaining walls among designated structures in specified circumstances, but the City does not publish one residential wall-height answer from the current page.
Windsor requires demolition permits for buildings greater than 10 m², with the farm-building exception noted by the city. The broad demolition result stays conditional because smaller/accessory scopes can differ.
Use the municipality’s permit office for current forms, fees, drawings and questions about your property.
Windsor uses Cloudpermit for building permit applications, status, payments and inspection requests.
Use these official links to confirm the current rule for your Windsor property.
Sources checked Sep. 24, 2026. Requirements can change; the municipality makes the final permit decision.
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