Building Permit
About building permits
A building permit is a document issued by the body responsible for enforcing Ontario’s Building Code in your area. A building permit is necessary when you wish to construct, renovate, demolish or change the use of a building.
Building Code enforcement, including issuing building permits, is generally carried out by municipal building departments, although in the case of on-site sewage systems, enforcement in some areas is conducted by boards of health and conservation authorities.
When you need a building permit
You must obtain a building permit before you:
- construct any new building over ten square meters in area or place another structure, such as a mobile home, on your property
- make renovations or repairs or add to a building
- change the use of a building
- excavate or construct a foundation
- construct a seasonal building
- undertake work regarding the installation, alteration, extension or repair of an on-site sewage system
- contact your municipality if you have any questions about when a building permit may be required.
- build a fence
- 2023 Building Code Updates - Sheds
- Required Drawings For Additions, Foundations, Renovations & Demolitions
- Building Permit Application
- Building Your Own Home In Ontario?
- Decks - When is a Permit Required?
- Detached Garage Shed Form
- Energy Efficiency Design Summary
- Fence By-Law
- Safety-At-Work Form
- You Need a Building Permit