Part 3 vs Part 9 Determination
Determine applicable OBC Part and major occupancy — describe the building and Codara applies Table 3.1.2.1., the special classification provisions and the Part 9 limits.
Determine the applicable OBC Part and major occupancy
Answer a short series of questions about the building. Codara helps identify the applicable major occupancy, checks the relevant classification provisions and Part 9 limits, and shows how the determination was reached.
Usually takes 1–3 minutes
How this determination works
Professional Responsibility & Disclaimer
This tool is a design aid only. It does not certify Ontario Building Code compliance, provide legal advice, or give an official Code interpretation, and it is not affiliated with or endorsed by any government authority. Every result must be independently verified against the current Ontario Building Code (O. Reg. 163/24, as amended) by a qualified design professional. The architect or designer of record remains solely responsible for Code compliance and for all information used in any permit application or construction. Provided "as is," without warranty of any kind, and used entirely at your own risk.