ROH §16-13.5
Minimum size rules for a safe room
Read the official text at honolulu.gov ↗This section sets the minimum size for a safe room in a building. The size depends on how many people will use it and the type of building. It also explains how to count usable floor space and how many people to plan for.
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The ordinance, as written (Honolulu County) — Size of safe room
A copy, taken August 22, 2026. The version published by Honolulu is the one that governs, and it may have changed since. Check it before relying on anything here.
The safe room must be designed to provide a minimum of 7 square feet per person for one- and two-family dwellings and 10 square feet per person for other types of dwellings, based on usable floor area. Usable floor area is defined as the protected occupant area between the safe room walls at the level of fixed seating, where fixed seating exists, minus the area of sanitary facilities or other items that impede usage of the safe room area. Occupant load for a dwelling must not be less than the number of bedrooms plus one. The room does not need to exceed 120 square feet.
Published by the City and County of Honolulu through American Legal Publishing.
LawTrove is not legal advice. The summary above is a computer-generated restatement — the authoritative text is the official version linked above.