“Small buildings (sheds, garages) are exempt.” Fact: Detached garages under 10 sq.m. (108 sq.ft.) are exempt, but any garage with heating or a door connected to the house triggers CO alarm requirements.

If you are planning a project in 2024, follow this checklist:

: A three-month transition period exists until March 31, 2025 . During this window, permit applications can still use the 2012 OBC if working drawings were "substantially complete" before January 1, 2025.

While announced and filed in 2024, these changes come into effect on [4]. This transition period allows industry professionals time to familiarize themselves with the new requirements. Key Highlights and Changes in the 2024 Code

Understanding the transition timeline is critical for ongoing and upcoming projects:

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:

| Issue | Stakeholder Concern | |-------|----------------------| | 6-storey wood frame fire safety | Fire chiefs worry about response times for taller combustible buildings | | Blower door testing shortage | Only ~200 certified testers in Ontario as of 2024 | | Accessibility costs | Small businesses facing 30% higher retrofitting costs for washrooms | | Seismic updates | Ottawa developers surprised by added foundation costs (estimated +$8k per unit) |

Navigating the 2024 Ontario Building Code: A Comprehensive Guide

If you are pulling a permit in Ontario after January 1, 2025, you are playing by a new set of rules. The long-awaited has officially been released, and it isn’t just a minor typo fix. This is the most significant overhaul in over a decade.

Identify projects scheduled for building permit submission late in the year and verify if they qualify for the 2012 OBC transition rules or must be adapted to the 2024 standards. Conclusion

Ensure your team has access to the federal NBC 2020 alongside Ontario Regulation 163/24.

Coordination with national standards is a theme in Part 7 (Plumbing).