How long does permit approval take in Ottawa?

Permit approval timelines in Ottawa vary by project type, but most residential permits are approved within 10 to 25 business days for straightforward renovations.

The City of Ottawa's Building Code Services processes permits based on complexity, and understanding what category your project falls into will help you plan your renovation timeline realistically. One of the most common mistakes Ottawa homeowners make is starting to book contractors before the permit is in hand — this can cause costly scheduling delays if approval takes longer than expected.

Simple permits — things like decks, fences, and minor interior alterations — typically come back in 10 to 15 business days and cost roughly $100 to $300. Mid-range renovation permits covering basement finishing, additions of windows or doors, or bathroom/kitchen work generally take 15 to 25 business days and run $200 to $500 or more depending on scope. For larger structural projects like home additions, garage builds, or secondary dwelling units, expect a review period of 4 to 8 weeks for structural work and 6 to 12 weeks for secondary suites, which also require zoning compliance review. Permit fees for these larger projects can range from $500 to $2,000+.

It's worth noting that Ottawa's permit office experiences seasonal surges — spring and early summer are particularly busy as homeowners rush to start exterior projects. If you're planning a summer renovation, submitting your permit application in February or March can save you weeks of waiting. The City also offers an online portal at ottawa.ca/building where you can submit applications and track status, which is far more efficient than in-person visits for most project types.

Incomplete applications are the number one cause of delays. Before submitting, make sure you have accurate site plans, construction drawings (required for structural work), and all supporting documents. For complex projects, hiring a designer or architect to prepare your drawings upfront will almost always speed up the process — reviewers can flag incomplete submissions back to you, which restarts the clock.

If your project requires a variance from zoning bylaws (for example, a deck that's closer to the property line than permitted), you'll need to go through the Committee of Adjustment, which adds several weeks to the process and involves a public notice period.

Your next step is to contact the City of Ottawa Building Code Services at 613-580-2424 or visit ottawa.ca/building to confirm exactly what permits your specific project requires. If you're unsure whether your project needs a permit at all, that's also a great question to ask them directly — it's a free call that can save you from a costly compliance issue later. You can also browse our Ottawa contractor directory to find licensed professionals who can help with permit applications as part of their project scope.