Grass Height Limits: Honolulu vs Urban Honolulu
How do grass height limits rules compare between Honolulu, HI and Urban Honolulu, HI?
Honolulu and Urban Honolulu have similar restriction levels.
Honolulu, HI
Honolulu County
Honolulu requires property owners to keep their land free of excessive weeds, overgrown grass, and waste. Uncultivated flammable weeds exceeding 18 inches within 30 feet of a building in residential or apartment zones are defined as a public nuisance.
View full Honolulu rules →Urban Honolulu, HI
Honolulu County
Urban Honolulu regulates overgrown vegetation as a public nuisance under ROH Chapter 16A without a numeric grass height, with dense enforcement pressure in Waikiki, Kakaako, and Ala Moana neighborhoods.
View full Urban Honolulu rules →Key Facts Comparison
| Fact | Honolulu | Urban Honolulu |
|---|---|---|
| Nuisance height threshold | 18 inches near buildings | - |
| Proximity rule | Within 30 feet of any building | - |
| Owner notice period | 30 calendar days to comply | - |
| Maximum daily fine | Up to $5,000 per day | - |
| Code chapter | - | ROH Chapter 16A |
| Compliance window | - | 30-day notice |
| Enforcement | - | Planning and Permitting |
| Height limit | - | Not numerically specified |
| Focus areas | - | Kakaako, Chinatown, Kalihi |
Highlighted rows indicate differences between cities.
Honolulu FAQ
Is there a specific grass height limit throughout my entire lot?
The code specifically targets flammable weeds over 18 inches within 30 feet of structures as a defined nuisance; general overgrowth is also subject to abatement orders if it creates a public nuisance.
What happens if I ignore the city's weed-clearance notice?
After 30 days, the city can hire crews to clear the property and bill you for all costs plus 7% interest annually. The unpaid bill becomes a lien on the property.
Urban Honolulu FAQ
Is there a set grass height in urban Honolulu?
No. ROH Chapter 16A is condition-based. Overgrowth that creates fire risk, harbors pests, or blocks sidewalks can trigger a violation even at modest heights in dense neighborhoods.
What triggers fast enforcement in the urban core?
Sidewalk obstruction, rat harborage, and visibility issues near schools or tourist corridors typically accelerate Planning and Permitting response in Waikiki, Ala Moana, and downtown.
Compare other topics
See how Honolulu and Urban Honolulu compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool