ROH §21-7.30
Signs that are not allowed
Read the official text at honolulu.gov ↗This section lists the types of signs you cannot put up or keep. It bans signs that are not allowed by the sign rules, signs for activities not happening on the property, wind or portable signs (unless allowed), signs that are a traffic danger, and flashing signs.
businesseslandowners
The ordinance, as written (Honolulu County) — Prohibited signs
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.
It is unlawful to erect or maintain:
(a) Any sign that is not included under the types of signs permitted in this chapter;
(b) Any sign that advertises or publicizes an activity not conducted on the premises on which the sign is maintained;
(c) Any wind or portable sign, except as otherwise permitted in this chapter;
(d) Any sign that by reason of its size, location, movement, content, coloring, or manner of illumination constitutes a traffic hazard or a detriment to traffic safety by obstructing the vision of drivers, or by obstructing or detracting from the visibility of any official traffic control device, or by diverting or tending to divert the attention of drivers of moving vehicles from the traffic movement of the public streets and roads; and
(e) Flashing signs.
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.