Renovation Permits in
Durham Region, Ontario
Everything Durham Region homeowners need to know about building permits. When you need them, how to apply, how much they cost, and who to call in every Durham municipality.
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What Requires a Permit in Durham Region?
Projects that require building permits across all Durham municipalities
Structural Work
- ✕Removing or adding load-bearing walls
- ✕Building additions or extensions
- ✕Garage conversions to living space
- ✕Structural repairs to foundations or beams
Basement & Secondary Suites
- ✕Basement finishing (framing, drywall, electrical)
- ✕Creating a secondary suite or basement apartment
- ✕Adding a separate entrance
- ✕Installing egress windows in basements
Plumbing
- ✕Adding a new bathroom
- ✕Moving plumbing drain lines or supply pipes
- ✕Installing new fixtures in new locations
- ✕Adding a kitchen or kitchenette
Electrical
- ✕Electrical panel upgrades
- ✕Adding new circuits
- ✕Rough-in electrical for new spaces
- ✕Installing EV chargers (often requires permit)
Exterior & Decks
- ✕Decks over 24 inches (60cm) above grade
- ✕Decks attached to the house
- ✕Adding windows or doors (changing opening size)
- ✕New garages or carports
HVAC
- ✕Installing new furnace or HVAC systems
- ✕Adding A/C to home without existing A/C
- ✕Installing heat pumps
- ✕Altering ductwork significantly
What Doesn't Need a Permit?
These projects generally don't require permits in Durham Region (always confirm with your municipality)
* Always verify with your specific municipality — requirements can change. When in doubt, call before starting work.
Permit Costs in Durham Region
Approximate permit fees across Durham municipalities
| Project Type | Permit Cost Range |
|---|---|
| Basement Finishing | $500 – $1,800 |
| Secondary Suite | $1,000 – $2,500 |
| Deck Construction | $200 – $600 |
| Home Addition (per sq m) | $15 – $40/sq m |
| Kitchen with Plumbing Changes | $400 – $1,200 |
| New Bathroom Addition | $500 – $1,500 |
| Electrical Panel Upgrade | $150 – $400 |
* Permit costs vary by municipality and project scope. These are estimates — contact your municipal building department for accurate quotes.
Durham Region Building Permit Contacts
Contact information for every Durham Region municipality's building services department
Oshawa
City of Oshawa Development Services
Online permit applications accepted. Typical processing 5–10 business days for residential projects.
Whitby
Town of Whitby Building Services
ePermit portal available for most residential permit applications. Processing 5–15 business days.
Ajax
Town of Ajax Building Services
Online applications available. Processing 5–10 business days for standard residential projects.
Pickering
City of Pickering Building Services
MyPickering portal for online applications. Processing 5–15 business days for residential permits.
Clarington (Bowmanville, Courtice, Newcastle)
Municipality of Clarington Building Services
Serves Bowmanville, Courtice, Newcastle, and all Clarington communities. Processing 5–15 business days.
Scugog (Port Perry)
Township of Scugog Building
Smaller municipality — processing times can vary. Call ahead to confirm current timelines.
Uxbridge
Township of Uxbridge Building
Rural municipality — building permit processing typically 10–15 business days.
Brock (Cannington, Beaverton)
Township of Brock Building
North Durham rural municipality. Contact for current processing timelines.
Durham Region Permit FAQ
Do I need a permit for a kitchen renovation in Durham Region?
A kitchen renovation in Durham Region requires a permit if it involves: moving plumbing (drain lines or supply pipes), electrical panel upgrades, structural changes (removing walls), or adding new electrical circuits. Cosmetic work — new cabinets, countertops, appliances, paint, flooring — generally doesn't require a permit. When in doubt, call your local municipal building department.
What happens if I renovate without a permit in Durham Region?
Renovating without a required permit in Durham Region can result in: fines from the municipality, being ordered to open walls for inspection (costly), unpermitted work disclosure requirements at home sale, insurance claim issues if the unpermitted work is involved, and lender financing issues. Always permit required work — it costs far less than the consequences.
How long do permits take in Durham Region?
Permit processing times in Durham Region vary by municipality and project type. Simple residential permits (deck, basement finish) typically take 5–15 business days. Complex projects (additions, secondary suites) may take 3–6 weeks. Apply for permits early — they must be approved before work begins, and delays can push your project start date significantly.
Should my contractor pull the permit, or do I?
Either the homeowner or contractor can apply for building permits in Durham Region. In practice, most reputable contractors handle permit applications as part of their service. This is important because the contractor is responsible for ensuring work passes inspections. If a contractor suggests you pull the permit yourself while they do the work, that's a red flag — it may indicate they're not licensed for the work.
What is the difference between a building permit and a trade permit in Durham Region?
Building permits are for structural, architectural, and general construction work. Trade permits are issued separately for electrical work (by the Electrical Safety Authority, ESA) and plumbing work (by the municipality or province). Most major renovation projects require both a building permit and separate trade permits. Your contractor should know which permits are needed for your specific project.
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