Confirm that building products and assemblies specified in new designs carry compliance certifications that match the updated 2024 standards.
: Since April 1, 2025 , all building permit applications are reviewed strictly under the 2024 OBC.
Professionals must understand the new national-based structure [2]. ontario building code 2024
Under the new harmonized code, the requirement has shifted. You no longer have to make the primary front entrance accessible. Instead, you must provide an accessible entrance , but it can be:
Wireless interconnection is now explicitly permitted for smoke alarms in houses with secondary suites. Confirm that building products and assemblies specified in
For projects well advanced in the design phase, the old 2012 Building Code could still be used if the permit application was submitted before January 1, 2025 . Furthermore, certain permits submitted before April 1, 2025 , were permitted under the old code if they met specific criteria regarding architectural design continuity.
The 2024 Ontario Building Code: What You Need to Know Ontario is stepping into a new era of construction. The was officially filed on April 10, 2024, and marks a major shift toward national harmonization and streamlined building practices. Whether you are a builder, designer, or homeowner, Key Effective Dates & Transition Period Under the new harmonized code, the requirement has shifted
The transition to the new code follows a phased timeline to allow the industry to adapt: : The 2024 OBC officially came into effect.