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Building or Renovating

Which types of building projects require a building permit?

Under the Ontario Building Code Act, a building permit is required for the construction of an addition or alteration of any structure which results in a building area of over 10m2 (108) sq. ft. A list of typical projects that do require a permit, includes:

Installation of SidingDormers of finishing of attic spaceReplacement of brick veneer
DecksOne or two story additionsReplacement of masonry chimney below roof line
BalconiesFinishing a basementInstallation of irrigation systems
Outdoor BoilersPlumbing and/or drains (except replacing fixtures)Installation, repair of storm, sanitary & water service
New FoundationsNew or structural alterations to windows & doorsInstallation of clean out
New fireplacesInterior structural alterationsConversion from septic to sewer
Completion of roughed-in fireplacesAdding or removing most walls (i.e. creating different room sizes and/or uses)Insulation of exterior wall, when exterior or interior cladding is removed
New porches & enclosing a porchBasement or main floor walkout alterationsDemolition of any structure
Sun roomsSolarium's Carports
Attached or detached garages & ShedAsphalt roof shingles Gazebo's