PART 12 — RESOURCE CONSERVATION AND ENVIRONMENTAL INTEGRITYUpdated for the 2024 Ontario Building Code
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12.2.1.2.Energy Efficiency Design
(1) Reserved.
(2) Except as provided in Sentences (3) and (4), the energy efficiency of all buildings shall
(a) be designed to exceed by not less than 13% the energy efficiency levels required by Sentence 12.2.1.1.(2) of
O. Reg. 332/12 (Building Code) as it read on December 31, 2024, or
(b) conform to Division 1 and Division 3 or 5 of MMA Supplementary Standard SB-10, “Energy Efficiency
Requirements.”
(3) Except as provided in Sentence (4), the energy efficiency of a building or part of a building of residential occupancy
that is within the scope of Part 9 and is intended for occupancy on a continuing basis during the winter months shall
(a) be designed to exceed by not less than 15% the energy efficiency levels required by Sentence 12.2.1.1.(3) of
O. Reg. 332/12 (Building Code) as it read on December 31, 2024, or
(b) conform to Chapters 1 and 3 of MMA Supplementary Standard SB-12, “Energy Efficiency for Housing.”
(4) This Article does not apply to
(a) a farm building,
(b) a building that does not use electrical power or fossil fuel, or
(c) a seasonal recreational building described in Section 9.37. or 9.39.
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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.