Building Code 2024 //top\\ | Ontario
A key date for new professionals: Starting , Building Code exams will be based on the 2024 OBC. Exam questions will reflect the new and updated sections, including the new Part 2 (Farm Buildings) and revisions to Parts 3, 7, and 9.
The 2024 OBC significantly expands the permissions for "mass timber" construction. Following global trends and extensive fire safety testing, the code permits encapsulated mass timber construction (EMTC) for buildings up to (previously limited to 6 under specific conditions, or 18 storeys under an alternate compliance path in the 2022 amendments).
The represents the most sweeping overhaul of the province's construction regulations in over a decade. Officially taking effect on January 1, 2025 , this new edition fundamentally restructures how buildings are designed, permitted, and constructed across Ontario.
Seismic requirements have been substantially revised with updated seismic hazard data: ontario building code 2024
More flexibility for using wood in mid-rise residential structures.
To help you apply these updates to your specific project, tell me:
A brief transition window permitting the use of the 2012 OBC only if the applicant can demonstrate that the architectural and engineering design work was substantially underway before January 1, 2025. A key date for new professionals: Starting ,
The physical and digital layout of the code has changed to reflect its federal integration. Instead of an independent, standalone text, the 2024 OBC is packaged as a that adopts the National Building Code of Canada 2020 as its baseline, modified by a dedicated volume of Ontario-specific amendments: Volume 1: Core Framework and Divisions The 2024 Ontario Building Code
Disclaimer: This article is for informational purposes only. Laws and building codes are subject to interpretation and change. Always consult your local building department or a licensed professional engineer before starting construction.
: End of the three-month "grace period." For applications submitted after this date, designs must comply entirely with the 2024 standards. Following global trends and extensive fire safety testing,
: The 2024 OBC is the active standard for all new permit applications submitted after January 1, 2025.
4.4 Accessibility and Housing Affordability Measures
