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
- Define whether fixtures are replaced, added or relocated
- Identify drain, waste, vent and water changes
- Prepare the applicable plans
- Submit the plumbing/building permit and book required inspections
Official sources behind this page
Alter/add/extend plumbingPermit required
Ottawa lists alterations, additions or extensions to a plumbing system as permit-required work.
City of OttawaBuilding permit projects · Window, door, plumbing and foundation repair permit triggers
2026-10-01Open proof
Existing fixture replacementExcluded from the listed trigger
Ottawa’s project list excludes replacing existing fixtures from the plumbing permit trigger.
City of OttawaBuilding permit projects · Window, door, plumbing and foundation repair permit triggers
2026-10-01Open proof
InspectionsUnderground, rough-in and final can apply
Ottawa publishes plumbing underground, plumbing rough-in and plumbing final as inspection stages.
City of OttawaBuilding inspections · Plumbing underground, rough-in and final inspections
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 plumbing guide