Planning & EstimatingQuestion 541 of 700
During plan review of a finished basement, you notice a proposed habitable rec room with a ceiling height of 6 ft 10 in. What is the BEST conclusion?
a.It is acceptable because basements are exempt from ceiling height rules
b.It fails the minimum habitable ceiling height and must be revised
c.It is acceptable if a ceiling fan is not installed
d.It only needs owner approval, not a code correction
Explanation
Habitable rooms generally require a minimum ceiling height of 7 feet. A 6 ft 10 in ceiling is 2 inches short, so the design fails and must be corrected before permit. Option a is wrong because basements are not exempt for habitable space. Options c and d treat a code minimum as optional. Catching this on paper avoids costly rework after framing.
Law Reference: 2025 California Residential Code §R305.1Practice all 700 questions free — no signup required.
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