Ontario Building Code 2024 -

Ontario Building Code 2024: What You Need to Know About the Major Shifts

Updated tactile warning indicators and visual signage rules for public spaces. 3. Energy Efficiency and Environmental Sustainability

A transition period is available until March 31, 2025 , for projects where designs were substantially completed before January 1, 2025, and a permit application is submitted by this deadline.

4.1 Energy Efficiency and HVAC

Lowers compliance costs for multi-provincial developers by standardizing structural and safety baseline requirements. Critical Timelines and Transition Periods

Ontario remains committed to the goals of the Accessibility for Ontarians with Disabilities Act (AODA). The 2024 code refines barrier-free design requirements to ensure public and private spaces are universally accessible:

The 2012 OBC's term "house" has been removed and replaced with more precise terminology such as "secondary suite" and "house with a secondary suite" or "individual dwelling unit". Ontario has aligned with the National Building Code for secondary suite requirements but maintains flexibility on suite sizes to support housing objectives and minimize costs.

: Refined spatial layouts to accommodate modern motorized wheelchairs. 🍃 Sustainability and Energy Efficiency

: End of the three-month "grace period." For applications submitted after this date, designs must comply entirely with the 2024 standards.

A three-month grace period allowed applicants to use the 2012 OBC for projects where working drawings were substantially complete by December 31, 2024.

Building professionals are encouraged to: