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 Ministry of Municipal Affairs and Housing (MMAH) has published technical bulletins and hosted webinars to help the building sector learn about the 2024 OBC changes. Email to request copies of technical bulletins and webinar recordings. ontario building code 2024
The Supplementary Standard SB-12 has been overhauled. For residential homes (Part 9 buildings), prescriptive thermal resistance (R-value) requirements have increased: For projects well advanced in the design phase,
The provides resources for builders, designers, and homeowners: 2024 Ontario Building Code Updates - City of Kingston Email to request copies of technical bulletins and