Project template
Your preparation checklist
Use it as a working list. The final submission still needs to match your actual scope and the City’s current requirements.
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What to do next
- Confirm zoning eligibility
- Obtain the required zoning certificate
- Prepare the building permit package
- Complete inspections before occupancy
Official sources behind this page
ZoningVerify the proposed unit
Oakville directs applicants to confirm that the plans and proposed unit comply with the Town’s zoning by-laws.
Town of OakvilleAccessory Apartment · Accessory apartment zoning and permit preparation
2026-10-01Open proof
Zoning Certificate of OccupancySeparate approval required
The Town says a residential basement-to-accessory-dwelling/second-suite change requires a Zoning Certificate of Occupancy.
Town of OakvilleAccessory Apartment · Accessory apartment zoning and permit preparation
2026-10-01Open proof
Building permitSeparate from the zoning certificate
Oakville explicitly notes that a zoning certificate does not give permission to construct and that additional permits such as a building permit may be required.
Town of OakvilleAccessory Apartment · Accessory apartment zoning and permit preparation
2026-10-01Open proof
Need the full project answer?
The main guide keeps the permit trigger, zoning questions, documents, fees, timing and next steps together.
Open the accessory apartment / second suite guide