Do deck and patio projects require inspections in Ottawa?

Most deck and patio projects in Ottawa do NOT require inspections, but it depends on the height, size, and type of construction.

For patios at ground level (concrete, stone, pavers), the City of Ottawa typically doesn't require permits or inspections since they're considered landscaping features. However, if your patio involves significant grading changes, retaining walls over 1 meter high, or affects drainage patterns, you may need permits.

Deck permit and inspection requirements in Ottawa are based on height and size:

• Decks under 24 inches (0.6m) high: No permit or inspection required, regardless of size
• Decks 24 inches to 10 feet high: Require building permit and inspection if over 108 square feet (10 square meters)
• Decks over 10 feet high: Always require permits and inspections, regardless of size
• Attached decks: More likely to require permits due to structural connections to the house

When a permit IS required, Ottawa building inspectors will typically conduct two inspections: a footing/foundation inspection before concrete is poured, and a final inspection once the deck is complete. The permit fee ranges from $200-400 depending on deck size and complexity.

What to watch for: Many contractors will tell you "it doesn't need a permit" to avoid the paperwork and timeline. Always verify this yourself by calling City of Ottawa Building Code Services at 613-580-2424 or checking the ottawa.ca/building portal. Getting caught with unpermitted work can create problems when selling your home or filing insurance claims.

Special considerations in Ottawa: If you're in a heritage district (like the Glebe or New Edinburgh) or your property backs onto city parkland, additional approvals may be needed. Properties near the Rideau River or other waterways may have conservation authority requirements.

For any deck work, ensure your contractor carries WSIB coverage and liability insurance. Even simple deck projects can involve structural connections to your home, so verify their experience with similar projects in Ottawa's climate conditions.

If you're unsure about permit requirements for your specific project, the City of Ottawa offers free pre-consultation services where you can discuss your plans with building officials before starting work. This small step can save you major headaches down the road.