Renovation Permits in Canada: What You Need to Know (2026)

When Do You Need a Renovation Permit?

Building permits exist to ensure renovation work meets safety codes for structure, fire, plumbing, and electrical systems. In Canada, permit requirements are set at the municipal level, meaning rules vary by city. However, the general principle is consistent: any work that affects the structure, electrical, plumbing, or mechanical systems of your home requires a permit.

Skipping permits to save time or money is a common mistake that can cost you dearly at resale, through insurance claims, or during municipal inspections. This guide covers what you need to know before starting your kitchen, bathroom, basement, or deck project.

Permit Costs Across Canada

Project Type	Typical Permit Cost	Processing Time
Kitchen renovation (plumbing/electrical)	$200 - $500	1-3 weeks
Bathroom renovation (plumbing)	$150 - $400	1-3 weeks
Basement finishing	$300 - $1,000	2-4 weeks
Deck building	$200 - $500	1-3 weeks
Structural changes (wall removal)	$500 - $2,000	3-6 weeks
Addition or second storey	$1,000 - $5,000	4-8 weeks

Most renovation permits cost $200-$500 and take 1-3 weeks to process. The cost is typically based on the estimated construction value, often 0.5-1% of project cost.

Renovations That Don't Need Permits

Cosmetic and surface-level work generally doesn't require permits:

• Painting (interior and exterior)
• Flooring replacement (same level)
• Cabinet replacement or refacing
• Countertop replacement
• Fixture swaps (same location — faucets, light fixtures, outlets)
• Tile installation (walls and floors)
• Appliance replacement
• Minor landscaping and fencing (under 6 ft)
• Drywall repair and patching

Renovations That Require Permits

Any work involving these systems needs a permit:

• Structural: Removing or modifying load-bearing walls, adding beams
• Electrical: New circuits, panel upgrades, moving outlets, adding lighting (beyond simple swap)
• Plumbing: Moving or adding plumbing fixtures, new drain lines, water heater replacement
• HVAC: New furnace, ductwork changes, adding AC
• Egress: Adding or enlarging windows, especially for basement bedrooms
• Decks: Most decks over 2 ft above grade or over 100 sq ft
• Basement finishing: Framing, electrical, plumbing, insulation
• Gas: Any gas line work (stove, fireplace, BBQ hookup)

How to Get a Building Permit

1. Check your municipality's website for requirements and application forms
2. Prepare drawings — For simple projects, a sketch may suffice. Complex projects may require engineered drawings ($500-$2,000)
3. Submit application — Online or in-person at your municipal building department
4. Pay fees — Usually $200-$1,000 depending on project scope
5. Wait for approval — 1-6 weeks depending on complexity
6. Post the permit — Display it visibly at the job site
7. Schedule inspections — Rough-in inspection (before closing walls) + final inspection
8. Get final sign-off — Inspector confirms work meets code

What Happens If You Renovate Without a Permit?

Renovating without required permits carries serious risks:

• Selling your home: Unpermitted work must be disclosed. Buyers may demand a discount or walk away. Some may require you to tear out and redo the work.
• Insurance: If unpermitted work causes damage (fire, flood), your insurance company can deny the claim.
• Fines: Municipalities can issue fines of $500-$50,000 for unpermitted work.
• Forced demolition: In extreme cases, you may be required to remove unpermitted work at your expense.
• Safety: Unpermitted electrical or structural work may not meet code, creating genuine safety hazards.

Frequently Asked Questions

How much does a renovation permit cost?

Most residential renovation permits cost $200-$500. Larger projects like additions or basement suites can cost $1,000-$5,000. Fees are typically 0.5-1% of construction value.

How long does a permit take to get?

Simple permits (deck, bathroom plumbing) take 1-3 weeks. Complex projects with structural engineering take 4-8 weeks. Some cities offer expedited processing for an additional fee.

Can my contractor pull the permit?

Yes, most contractors will handle permit applications as part of their service. However, the permit is issued to the property owner, so you're ultimately responsible.

Do I need a permit to replace a toilet or faucet?

No. Replacing fixtures in the same location doesn't require a permit. Moving them to a new location does.