The 2024 OBC adopts a five-tier performance framework for energy efficiency (similar to the National Energy Code for Buildings).
While the code establishes the baseline, the tiered system incentivizes municipalities and developers to aim higher. This prepares the industry for a future where Net Zero construction becomes the mandatory standard, rather than an elite niche. ontario building code 2024
The 2024 code integrates more stringent Accessibility for Ontarians with Disabilities Act (AODA) requirements into the core building code. Key changes include: The 2024 OBC adopts a five-tier performance framework
Perhaps the most transformative element of the 2024 OBC is its approach to energy efficiency. The construction sector is a major contributor to greenhouse gas (GHG) emissions. The new code moves beyond simple compliance to a tiered performance structure. While the code establishes the baseline, the tiered
| Component | 2019 Code Cost | 2024 Code Cost | Delta | | :--- | :--- | :--- | :--- | | Wall insulation (R-22 cont.) | $3.50/sq.ft | $6.00/sq.ft | +71% | | Windows (triple-pane req.) | $500 each | $800 each | +60% | | Blower door test | Not required | $500–$1,000 | New | | Sprinklers (per townhouse) | $2,500 | $5,000 (mandatory) | +100% |
Adopting the Ontario Building Code 2024 will increase construction costs, but also long-term savings.
The 2024 amendments focus on three pillars: energy efficiency (Net-Zero ready), accessibility (designing for all abilities), and climate resilience (extreme weather preparedness). Unlike previous updates that were largely administrative, the 2024 changes have significant cost and design implications.