Toronto Building Permit

A Building Permit is the formal permission to begin the construction, demolition, addition or renovation on the property. As part of the Building Permit process, Toronto Building staff must review the plans to ensure they comply with the Ontario Building Code, local Zoning By-laws and other Applicable Law. Under the Building Code Act, a building permit is required for the construction and/or demolition of a new building, an addition, or material alteration of any building or structure.

The building owner is ultimately responsible for complying with all building requirements. Failure to obtain building permits can result in costly construction delays, legal action and/or the removal of work already completed. The following is a list of common projects that require a building permit: Construct a new building; Construct an addition to an existing building, such as second or third story additionsattached garages, carportssunroomssolariums, porches, decks; Make structural or material alterations, such as adding or removing walls (i.e., changing room sizes and/or uses)new windows or doors where there were none before, enlarging or relocating existing windows or doorsenclosing an existing deck, porch or patio of any size; Construct an accessory structure larger than 15 square metres (161 square feet) in area, such as: Detached Garage; Workshop; Garden shed; Carport; Pool house or cabana; Finishing a basement, if the work proposed includes any of the following: structural or material alteration, installing or modifying heating and or plumbing systems, excavating and/or constructing foundationsbasement underpinning, constructing a basement entranceadding a second suite; Energy and environmental building improvements, such as roof top storm water retention systems, green roofs, structures used in the support of a wind turbine generator with a rated output of more than 3kW, solar projects such as installation of solar collector systems and solar hot water systems; Construct a deck more than 60 centimetres (24 inches) above ground; Construct a retaining wall more than one metre (3 feet 3 inches) in height provided the retaining wall is on or adjacent to public property (including streets), building entrances, and on private property accessible to the public; Constructing a tent thatcovers more than 60 metres squared (646 square feet); and/or is attached to a building; and/oris within 3 metres (9 feet 10 inches) from another structure.; Demolish or remove all, or a portion of a building; Install or reconstruct a chimney or fireplace; Install a wood burning stove or fireplace; Install or modify heating and or plumbing systems; Install a backwater valve; Install a backflow prevention device; Change a building's use.

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