Ontario Building Code 2024 Jun 2026

Operating under the old code is not a minor infraction.

While titled the "2024" edition, the code officially came into effect on . To support the industry through this massive transition, the following timeline was established: ontario building code 2024

: Significant changes to residential ventilation (Part 9.32) to align with national standards. Fire Protection Operating under the old code is not a minor infraction

The biggest headache (or relief, depending on your perspective) is the transition. The old 2012 Code is essentially dead for new permits. ontario building code 2024

: Ended on March 31, 2025 . This period allowed designs substantially completed before 2025 to still use the 2012 Code.