Toronto Bathroom Renovation Permits and Inspections: What to Clarify With Your Contractor

In Short

A Toronto bathroom renovation needs a building permit when it installs or modifies plumbing, or adds or removes walls.
Replacing fixtures in their existing locations does not need a building permit.
Electrical work runs on a separate track: almost all of it must be reported to the Electrical Safety Authority (ESA).
The homeowner stays responsible for code compliance, even when the contractor pulls the permit.
Toronto inspects plumbing rough-in, framing, insulation and final plumbing, and a final inspection closes the permit.

Plumbing changes and wall changes are the two triggers for a Toronto building permit on bathroom work. Swapping a toilet, vanity or tub in the same location does not. Electrical work needs a separate ESA notification, and the homeowner remains responsible for compliance either way.

The permit line between cosmetic and plumbing work catches many homeowners off guard. A cosmetic refresh can go ahead without the City, while moving a shower drain 30 centimetres changes the whole paperwork picture.

Does Your Bathroom Project Need a Permit?

The building permit page from the City of Toronto sets out the rules that apply to most bathroom work. The page does not list bathrooms by name, so the table below maps common bathroom tasks to its categories.

Bathroom work	Building permit?	Why
Replacing a toilet, sink or tub in the same spot	No	“Repairing and replacing plumbing fixtures” is exempt
Installing a new vanity or cabinetry	No	Cabinetry and millwork are exempt
Moving a toilet, shower or sink drain	Yes	Modifies the plumbing system
Adding a new bathroom or a second sink with new lines	Yes	Installs new plumbing
Removing or adding a wall to enlarge the room	Yes	Structural alteration
New wiring, lights, fans or heated floors	ESA notification	Electrical work, reported separately

Wall-hung toilets and new drain rough-ins fall into a permit grey area. A wall-hung toilet that needs a new drain rough-in usually means modifying plumbing, so ask your contractor to confirm with the City before demolition.

Who Pulls the Permit, and Why You Still Own It

Contractors usually apply for the permit on the homeowner’s behalf. The City is still clear on one point: as the building owner, you are ultimately responsible for complying with all building requirements.

The home renovation guide from the Government of Ontario says the same thing in consumer terms. Getting permits is the homeowner’s responsibility, so if the contractor will handle them, write that into the contract.

Ask for the permit number before work starts. A contractor who handles permits properly will share it without hesitation and post the permit card on site.

Toronto’s Inspection Stages for a Bathroom

Toronto Building inspects permitted work at set stages, and the small-building inspection schedule from the City of Toronto lists when each one is due. The four stages that usually apply to a bathroom are:

Plumbing rough-in: Water supply, drains, waste and vents, inspected when complete and ready for testing.
Structural framing: Inspected at completion, including the rough-in of plumbing and HVAC.
Insulation and vapour barrier: Inspected before interior finishes go on.
Plumbing final: Inspected once the fixtures are installed.

Inspections happen within two business days of the request, according to the City. That timing matters, because tile cannot go up over walls an inspector has not yet seen.

How booking works

The inspection booking page from the City of Toronto lets you book from the next business day up to four weeks ahead. Inspections run Monday to Friday, 8:30 a.m. to 4:30 p.m.

The same page places the responsibility on the owner. Property owners must contact Toronto Building for the required inspections and schedule a final inspection to close the permit.

What each stage means for your schedule

Each inspection acts as a hold point in the construction sequence. The crew cannot close a wall, pour a mortar bed or set tile over work that still needs to be seen.

Rough-in passes: Framing and insulation can move ahead.
Framing and insulation pass: Drywall, backer board and waterproofing can go up.
Plumbing final passes: The permit is ready to be closed.

A contractor who books each inspection before the crew finishes the stage keeps the job moving. One who books after finishing can lose up to two business days at every hold point.

Electrical Work Runs on a Separate Track

ESA oversees electrical work, and its rules apply whether or not you need a building permit. According to the Electrical Safety Authority, the Ontario Electrical Safety Code requires almost all electrical work to be reported through a notification of work.

ESA also states that anyone you hire for electrical work must be a Licensed Electrical Contractor. Once the work passes, ESA issues a Certificate of Acceptance to whoever filed the notification, so ask for a copy.

New pot lights, an exhaust fan circuit, a heated floor and a relocated outlet all count. Plan for an ESA inspection even on a bathroom that never sees a City inspector.

What Goes Into a Plumbing Permit Application

Plumbing permit applications need more than a form. The standalone plumbing and drain permit guide from the City of Toronto lists the documents it expects, including:

Plans showing the layout of plumbing and related fixtures on each floor
A Plumbing Data Sheet
A Schedule 1 Designer Information Form

Ask your contractor who prepares each document and who signs the designer form.

How Long Permit Review Takes

Permit review in Toronto runs through different streams depending on the project. The review streams page from the City of Toronto sets these targets:

Interior alterations (Express Services): Eligible small residential applications reviewed within 3 business days after intake.
House stream: Complete applications reviewed within 10 business days.
Small building stream: Complete applications reviewed within 15 business days.

Toronto’s review targets apply only to complete applications. A missing plumbing layout or designer form leaves the application outside those targets, so ask your contractor who prepares the drawings.

Seven Questions to Clarify Before Work Starts

These questions settle the permit and inspection plan in writing:

Does any part of this scope need a building permit, and which part?
Who prepares the drawings and applies for the permit?
What is the permit number, and when will the permit card be posted?
Who books each City inspection, and who attends it?
Will tile or drywall wait until rough-in and framing inspections pass?
Who files the ESA notification, and will I get the Certificate of Acceptance?
Who books the final inspection, and will I receive proof the permit is closed?

Write the answers into the contract. Verbal assurances about permits are hard to enforce once a dispute starts.

Permit Red Flags to Watch For

Most contractors handle permits properly, but a few answers deserve a second look:

“It’s too small to need a permit” for work that moves a drain or a wall
No permit number offered before demolition on permitted work
Tile going up before the rough-in or framing inspection has passed
A request to file the ESA notification yourself, which ESA treats as a red flag
No plan for the final inspection once the fixtures are installed

Ask about each one directly. A contractor who runs permits routinely will answer in specifics, not reassurances.

Condo Bathrooms Add Another Layer

Condo bathroom renovations often need approval from the condo corporation as well as any City permit. Rules on working hours, elevator bookings, water shut-offs and contractor insurance vary from building to building.

Ask your property manager for the building’s renovation rules before you finalize a start date, and share them with your contractor.

Closing the Permit Matters Later

An open permit can follow a house long after the renovation ends. The City requires a final inspection upon completion to close the permit, and until that happens, the record shows unfinished work.

Keep the closed permit record, the inspection results and the ESA certificate together with your renovation contract. These documents answer the questions a future buyer’s lawyer or home inspector will ask.

Permit Questions From Homeowners

Can I start work before the permit is issued?

Permitted work should not begin until the permit is issued. Demolition that exposes plumbing for a layout change sits inside the permitted scope, so wait for the permit.

Can I pull my own permit as a homeowner?

The City’s forms provide for owner applicants in Toronto. Its standalone plumbing permit forms ask owners who are exempt from designer qualification to state their reason on the designer information form.

Do I need a permit to replace a bathtub with a shower?

A same-location swap that reuses the existing drain is usually fixture replacement. Moving the drain or adding new supply lines modifies the plumbing system and needs a permit.

Does my contractor handle the inspections too?

Many contractors book and attend inspections, but the City still treats the owner as responsible. Confirm in writing who books each one.

What happens if my bathroom was renovated without a permit?

Unpermitted plumbing or structural work can surface during a sale or an insurance claim. Contact Toronto Building about applying for a permit for the completed work, and expect to open some finishes for inspection.

How quickly does an inspector come out?

Toronto Building schedules small-building inspections within two business days of the request. You can book up to four weeks ahead, so a well-run project books before each stage is complete.

Does a new bathroom exhaust fan need a permit?

A new fan almost always involves electrical work, which needs an ESA notification and a Licensed Electrical Contractor. Ask your contractor whether the duct route or any wall changes also bring the job into building permit territory.

Can a friend or relative do the electrical work?

No. DIY guidance from the Electrical Safety Authority states that friends, family members or neighbours cannot perform electrical work in your home, and that a notification must be filed before work begins.

Bottom Line

Most of the permit question in a Toronto bathroom comes down to one test: does the work install or modify plumbing, or change a wall? If yes, plan for a permit, four inspection stages and a final inspection to close the file.

Settle who handles each step before demolition starts, from the permit application and drawings to every inspection booking and the ESA certificate. A clear, written permit plan protects your schedule now and your sale later.