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When is a Building Permit Required?
A Permit is required to construct or demolish a building. Construction can include anything in the erection,
installation or extension or material alteration or repair of a building.
The following building projects require permits:
-
NEW BUILDINGS: over 108 square feet (10m2) in area
(i.e. houses and other dwelling or residential buildings)
- ACCESSORY BUILDINGS: over 108 square feet (10m2) in area
(i.e. detached garages, tool sheds, etc.)
- WOOD DECKS: greater than 24 inches (600 mm) above ground level
- ADDITIONS / EXTENSIONS: to existing building even if under 108 square feet (10m2) in area
(i.e. sunrooms, porches, carports, garages, dormers, second
storeys, etc.)
- RENOVATIONS: skylights, patio doors, rec rooms, finished basements, family
rooms, interior renovations including commercial/industrial
buildings, etc.)
- CHANGES IN USE: to a use with an increased hazard (i.e. from office to retail)
- STRUCTURAL ALTERATION: removing load-bearing walls, beams or columns, repairing or
reconstructing basement walls, foundations, floors, roof
structures, etc.
- PREFABRICATED BUILDINGS: over 108 square feet (10m2) in area (i.e. portable classrooms,
kiosks, garages, tool sheds, patio roofs/enclosures, etc.)
- FARM BUILDINGS: barns, sheds, greenhouses, silos, etc.
- MOBILE HOMES
- FIREPLACES AND STOVES: (i.e. wood stoves, solid fuel burning appliances, chimneys, etc.)
- MATERIAL ALTERATIONS: alterations to, or new, fire separations (i.e. fire rated ceilings, wall
or floors)
• alterations to, or new, exit facilities
• alterations to, or new, fire protection systems
(i.e. fire alarms, sprinklers, standpipe and hose systems etc.)
- DAMPPROOFING: or waterproofing of foundation walls
- PLUMBING: alterations to, or new, plumbing systems
- SWIMMING POOLS: in-ground, on-ground or above-ground
Contact By-Law Office with any inquiries: 905-892-2607 ext. 204 or 207
- STRUCTURES DESIGNATED BY THE BUILDING CODE, TENTS AND TEMPORARY
STRUCTURES
- BUILDINGS RELOCATED OR MOVED