Ontario Building Code -

[Current Date] Subject: Regulatory Framework for Construction in Ontario Authority: Building Code Act, 1992 (S.O. 1992, c. 23)

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| Amendment | Description | |-----------|-------------| | | New Supplementary Standard SB-12 (energy efficiency for houses & small buildings) – tightened thermal bridging, mandatory hot water pipe insulation, increased blower door testing. | | Jan 2022 | Changes to Part 3 – new provisions for mass timber construction (up to 12 storeys), updated elevator requirements. | | 2024–2025 (expected) | Adoption of NBC 2020 with Ontario amendments – focus on climate resilience (floodproofing, cooling in residential buildings), updated snow/rain maps, stricter accessibility. | | | Jan 2022 | Changes to Part

In the past, two stairs were almost always enough. Today, with buildings growing taller and denser, the OBC is increasingly demanding a or enhanced evacuation strategies (like elevators used for evacuation) for taller buildings. Today, with buildings growing taller and denser, the

The Ontario Building Code is a living, legally enforceable document that balances safety, health, accessibility, and energy conservation. Compliance is mandatory for most construction activities, enforced through municipal permitting and inspections. Professionals and property owners must stay current with amendments, especially regarding energy efficiency and climate adaptation, as the OBC continues to evolve toward higher performance and resilience.

This is the most used section for residential construction.