What is a building permit? |
A building permit is your formal permission to begin construction, demolition, addition or renovation on your property. As part of the building permit process, Cambridge's Building Division staff must review your plans to ensure they comply with the Ontario Building Code, local Zoning Bylaws, and other Applicable Law. |
Who is responsible for obtaining a building permit? |
It is the owner's responsibility to ensure that a building permit is obtained when required. You may authorize your contractor or designer to apply for the permit but as the owner you must ensure that they have the permit prior to starting any work. |
Why do I need a building permit? |
Permits ensure that construction projects meet all zoning requirements, fire and structural safety standards and other building standards required by the Ontario Building Code. Failure to obtain building permits can result in costly construction delays, legal action and/or the removal of work already completed. |
What projects need a building permit? |
The Building Code Act requires you to apply for a building permit for the construction of any structure with an area of more than 10 square metres (108 square feet) or contains plumbing. This includes:
- Additions
- Alterations
- Renovations
- Plumbing
- Site services
- Sewage systems
- Other designated structures
Some typical projects requiring a building permit include:
- Decks or porches 24 inches (or more) above grade
- Interior structural alterations
- New fireplaces or wood stoves
- Adding or removing walls, such as creating different room sizes or uses
- Sunrooms
- Attached or detached garages, sheds or carports
- Dormers or finishing of attic space
- Installation of irrigation systems
- Installation or repair of storm, sanitary or water services
- Finishing a basement
- Plumbing or drains
- New or alterations to windows or doors, such as increasing the opening size
- Repairs of existing or installing new septic systems
- Retaining walls greater than 1 meter, depending on location
- Creation of additional dwelling units, such as Duplexing
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What projects don't require a building permit? |
A building permit is not required for a detached accessory structure that measures 10 square metres (108 square feet) in area or less and does not contain plumbing. Although a building permit may not be required, you must still meet the requirements of the Zoning By-law and Ontario Building Code. Some typical projects that don't require a building permit include:
- Fences other than for swimming pools
- Decks not forming part of a principle entrance to a building and less than 24 inches above grade and does not have a roof
- Roof shingling
- Eaves troughs
- Air conditioning units or heat pumps added to existing forced-air systems
- Kitchen or bathroom cupboards without plumbing
- Replacement of existing forced-air furnace
- Replacement of siding or windows
- Painting and decorating
- Landscaping
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What is the cost of a building permit? |
View our Building Permit Fee Schedule. |
When do I need to get a building inspection? |
The Building Official must inspect each major phase of construction to ensure the work conforms to the approved plans. Your building permit includes which building inspections your project requires. It is your responsibility to ensure that either you or your contractor contacts the City to request an inspection at least 24 hours before work continues from one inspection stage to the next. |
Who do I notify before starting any work? |
You have to submit a Notice of project to the Ministry of Labour prior to starting work. If you think you might have asbestos in your building please contact the Ministry of Labour to determine how to proceed. |