Updated to 2024 Code · Effective Jan 1, 2025

Ontario Building Code 2024

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General compliance, definitions, and referenced documents

Objectives of the building code

Functional statements for all building types

Structural loads, foundations, and engineering requirements

Walls, roofs, and moisture management

Heating, ventilation, and air conditioning (HVAC)

Plumbing systems, fixtures, and drainage

Sewage systems and septic design

Houses, additions, cottages, and small buildings

Change of use and occupancy requirements

Renovation and heritage building requirements

Energy efficiency and resource conservation