Permit Requirements: Honolulu vs Urban Honolulu
How do permit requirements rules compare between Honolulu, HI and Urban Honolulu, HI?
Honolulu and Urban Honolulu have similar restriction levels.
Honolulu, HI
Honolulu County
In Honolulu, fences six feet or under are generally exempt from building permits unless on a street corner or in a flood zone. Fences taller than six feet require a permit and fire-department access approval.
View full Honolulu rules →Urban Honolulu, HI
Honolulu County
Urban Honolulu property owners obtain fence and wall permits from the Honolulu Department of Planning and Permitting under ROH 18-3.1, which exempts retaining or riprap walls up to 30 inches tall.
View full Urban Honolulu rules →Key Facts Comparison
| Fact | Honolulu | Urban Honolulu |
|---|---|---|
| Permit-exempt height | 6 ft or under (with exceptions) | - |
| Permit required above | 6 ft; also fire dept. approval | - |
| Retaining wall permit | Required over 30 inches | - |
| Prohibited materials | Barbed wire, razor wire | - |
| Permit exemption | - | 30 inches or less |
| Issuing agency | - | Honolulu DPP |
| Code section | - | ROH 18-3.1 |
| Historic review | - | Additional design control |
Highlighted rows indicate differences between cities.
Honolulu FAQ
Do I need a permit for a 6-foot wood fence in Honolulu?
Generally no, as long as it is not on a street corner or in a flood zone. Fences exceeding 6 feet require a building permit.
Are there extra rules for fences on corner lots?
Yes. Corner lots lose the 6-foot permit exemption, and fence height and placement are also subject to Land Use Ordinance visibility requirements.
Can I install barbed wire on my residential fence?
No. ROH Chapter 16 prohibits the use of barbed or razor wire for any fence in Honolulu.
Urban Honolulu FAQ
Do I need a permit to build a fence in Urban Honolulu?
Usually yes. ROH 18-3.1 exempts only retaining or riprap walls up to 30 inches. Most fences over 30 inches, masonry walls, and pool enclosures require a Honolulu DPP permit before construction starts.
What if my home is in a Honolulu special district?
Fences in Waikiki, Chinatown, Kakaako, Haleiwa, and Diamond Head Special Districts require additional design review on top of the ROH 18-3.1 permit. Expect longer review timelines and design restrictions.
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