Under the Ontario Building Code Act, a building permit is required to construct, demolish, renovate, alter, or change the use of a building.
The following is a list of typical projects that require a building permit:
- Adding a bedroom to the basement
- Adding a dormer to existing roof
- Additions to an existing building
- Attached garage, carport, shed or other roof structures
- Basement or main floor walkouts
- Creating a duplex (in-law suite, accessory apartment, granny flat)
- Decks greater the 24 inches in height above grade
- Demolition of a structure greater than 108 square feet in building area
- Detached garage, shed or accessory structure 108 square feet and greater (measured to the outside face of exterior walls)
- Finishing the basement of a house
- Industrial, Commercial, Institutional and multi-residential construction or alterations or changes of use
- Installing a new window or door (when increasing the width of the existing opening)
- New Residential Dwellings
- Pending location, a retaining wall that is greater than 1 meter in height
- Plumbing fixtures added or relocated
- Re-insulating walls, ceilings, or floors
- Removing a load bearing wall, column, lintel, or beam
- Renovation or converting an existing building (change of use)
- Septic system installations and alterations, Septic System Application
- Site servicing (water or sewer lines) for all building types
- Solar Panels that are mounted to a building
- Swimming pool and fence
- Tent or group of tents that is, more than 60m2 (646 ft2) in aggregate ground area, attached to a building, or constructed within 3m (9'-10") of any structure
- Woodstove or wood burning fireplace
