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Renovation Hub · Compliance

What Actually Needs a Permit in Ottawa

Most structural, electrical, and plumbing work requires a permit — unpermitted work can complicate a future sale.

GETTING STARTED

Confirming What Your Project Needs

1

Check whether your specific project needs a permit before starting

The City of Ottawa's building permit pages list what's covered — when in doubt, a quick call or online check is faster than assuming either way.

2

Apply before work begins, not after

Retroactive permits are possible but involve inspection of completed work, which is more complicated (and sometimes requires opening up finished walls) than inspecting as you go.

3

Book required inspections at each stage

Most permits require inspections at specific milestones (framing, rough-in, final) — schedule these as you go rather than all at once at the end.

4

Confirm electrical work is inspected by the Electrical Safety Authority

Electrical permits and inspections in Ontario go through the ESA, separate from the City's building permit process.

WHAT TYPICALLY NEEDS A PERMIT

Structural, Electrical & Plumbing Work

Structural Changes

Removing or altering a load-bearing wall, adding a room, or finishing a basement generally requires a permit.

Electrical Work

New circuits, panel upgrades, or moving wiring require an ESA-inspected electrical permit.

Plumbing Changes

Relocating a sink, toilet, or adding a bathroom typically requires a permit.

Unpermitted Work & Resale

Work done without a permit often has to be disclosed when selling, and may need to be corrected or retroactively permitted — this can complicate or delay a sale.

Do I need a permit for my renovation project in Ottawa? What happens if I sell a home with unpermitted renovation work?
GOOD TO KNOW

Common Questions

How do I apply for a building permit in Ottawa?
Applications are submitted through the City of Ottawa. See Apply for a Building Permit (City of Ottawa) → for the current process.
What kinds of projects generally require a permit?
Structural, electrical, and plumbing work most commonly do. See Building Permits (City of Ottawa) → for the full list.
Who handles electrical permits and inspections?
Electrical work in Ontario is inspected by the Electrical Safety Authority (ESA), separate from the City's building permit process. See Electrical Permits (ESA) →.
What if I already did work without a permit?
A retroactive permit is often possible — the City may require inspection of the completed work, and in some cases opening up finished areas to confirm code compliance. It's worth resolving before selling rather than leaving it for a buyer's inspection to surface.

Not Sure If Your Project Needs a Permit?

Book a free consultation with Narges, or ask HAI a quick question to get pointed in the right direction.

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