Oakville bathroom permit: when you need one and what to submit
The short answer
Not for fixtures replaced in the same spot. Adding, removing or moving a fixture needs a permit. City fee: $100 per fixture.
Last verified 2026-10-06 · Town of Oakville: Building permit application process, Town of Oakville: 2026 Building Services fees (PDF)- City fee
- $100 per fixture
- Where to apply
- Town of Oakville Online Services
What an application usually includes
Oakville’s checklist has the exact list; apply through Town of Oakville Online Services.
- A plumbing layout: fixtures, drains, vents and the tie-in to the stack
- The fixture count for the fee
- A floor plan if walls or openings change
Local quirks
- The Town's deck page and its permit checklist word the deck rule differently. Treat an attached deck as always needing a permit.
- Private trees 15 cm or more across need their own permit unless a building permit requires the removal.
- Grading work needs a development engineering permit unless it stays 0.3 m from the property lines and doesn't change drainage.
Design your Oakville bathroom to the Building Code.
The design, drawings and code checks work in Oakville today. Oakville’s own forms aren’t built in yet, so you’ll fill those in on the City’s portal.