Signage Rules: Honolulu vs Kailua
How do signage rules rules compare between Honolulu, HI and Kailua, HI?
Honolulu and Kailua have similar restriction levels.
Honolulu, HI
Honolulu County
Honolulu's Land Use Ordinance prohibits any exterior signage indicating a home is used for a business. Under ROH § 21-5.350, home occupations must be invisible from the street — no signs, displays, or advertising may be mounted on or near the dwelling.
View full Honolulu rules →Kailua, HI
Honolulu County
Kailua home-based businesses face tight sign limits under LUO Article 7, with only small nameplate-style signs permitted in residential zones and an explicit list of prohibited sign types.
View full Kailua rules →Key Facts Comparison
| Fact | Honolulu | Kailua |
|---|---|---|
| Exterior signs | Prohibited for home occupations | - |
| Residential district sign max | 4 sq ft (non-dwelling use only) | - |
| Illuminated signs | Not permitted in residential zones | - |
| Governing code | ROH § 21-5.350; Ch. 21 Art. 7 | - |
| Enforcing agency | Honolulu Dept. of Planning & Permitting | - |
| - | - |
Highlighted rows indicate differences between cities.
Honolulu FAQ
Can I put a small nameplate on my mailbox for my home business?
No. ROH § 21-5.350 prohibits any exterior signage that indicates the residence is used for non-residential purposes, including nameplates advertising a business.
Can I advertise my home business with a sign in my window?
Interior window signs visible from the street may still violate the intent of ROH § 21-5.350. Consult the Honolulu DPP for guidance on specific situations.
Are there any exceptions for certain licensed home businesses?
The ordinance makes no general exceptions. Any home occupation, regardless of type or license, must comply with the no-exterior-sign requirement under § 21-5.350.
Kailua FAQ
Can I post a yard sign for my home business?
Only a small nameplate sign identifying the occupant is typically allowed; temporary yard signs advertising services are generally not permitted.
Does a vehicle wrap count as a sign?
A working business vehicle is generally allowed, but parking it as a stationary display on the street can be treated as prohibited signage.
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