Ontario Building Code

Ontario Building Code 2024

March 4, 2025

New changes are in effect as of January 1st, 2025. Know your building code and be aware of the changes required for accessory dwelling units. Changes to requirements such as lower ceiling height in basement dwellings, fire separations, air distribution systems and more. Ensure you are complying with the new code as well as following any municipal guidelines.

https://london.ca/living-london/building-renovating/additional-residential-units

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