How long building permits actually take in Ottawa
The law gives the City a deadline. Incomplete applications give it back. Most “slow permits” are really resubmission loops — and those are preventable.
The legislated review windows
Ontario's Building Code sets maximum review timelines that apply to every municipality, Ottawa included. The clock starts when a complete application is received:
| Building type | Review window |
|---|---|
| House | 10 business days |
| Small buildings | 15 business days |
| Large buildings | 20 business days |
| Complex buildings | 30 business days |
A typical custom home is the 10-day category; multi-unit and commercial work lands in the longer windows.
Why real timelines are longer
- Incomplete applications don't start the clock. Missing drawings, an unsigned form, or an unresolved zoning issue means the review window never began.
- Deficiency letters reset your schedule.Each resubmission loop costs days to weeks — the review restarts, your trades don't.
- Zoning problems surface late. Setbacks, height, lot coverage, and infill rules are knowable before you apply; discovering them in review is the expensive way.
- Other approvals run on their own clocks. Committee of adjustment variances, site plan control, and conservation authority sign-offs all precede or parallel the permit — and none of them are bound by the 10-day window.
Keeping permits off the critical path
- Run the zoning analysis at intake, before design is finalized.
- Submit complete: a submission checklist per building type, enforced every time.
- Track review status and deficiency responses like tasks with owners and due dates — not emails.
- Book inspections against the construction schedule, not after the fact.
JobSite runs a zoning analysis per project address and tracks every permit, deficiency response, and inspection in the project schedule — see the permits module.
Review windows are the legislated maxima under Ontario's Building Code; municipal processes and workloads vary. Verify current requirements with the City of Ottawa for your specific project.