Understanding OBC 9.7.2.3 glazing requirements is essential for BCIN House exam success and residential permit design in Ontario. This guide explains minimum window areas for bathrooms, bedrooms, basements, and second suites, including Part 11 C110 allowances that permit reduced glazing in existing houses.

Open‑concept layouts are popular, but the Ontario Building Code still requires minimum room areas. Learn how to calculate combined living, dining, and kitchen space for the BCIN House Exam using OBC 2024.

Learn the minimum ceiling height requirements for living rooms under OBC Part 9, Table 9.5.3.1. This BCIN House 2024 exam guide explains the 2.3 m rule, the 75% floor area requirement, and practical basement second suite examples designers need to know.