Structure Height Limits: Ewa Gentry vs Urban Honolulu
How do structure height limits rules compare between Ewa Gentry, HI and Urban Honolulu, HI?
Ewa Gentry has fewer restrictions than Urban Honolulu.
Ewa Gentry, HI
Honolulu County
ROH Sec. 21-4.60 sets maximum building heights and building envelope planes for Ewa Gentry, with district-specific limits usually capping homes at 25 to 30 feet in residential zones.
View full Ewa Gentry rules →Urban Honolulu, HI
Honolulu County
Urban Honolulu caps residential structures at 25 feet under ROH 21-4.60 with a 30-foot envelope plane, while Waikiki, Kakaako, and Ala Moana high-rise districts follow separate maximum heights.
View full Urban Honolulu rules →Key Facts Comparison
| Fact | Ewa Gentry | Urban Honolulu |
|---|---|---|
| - | - | |
| Residential cap | - | 25 feet |
| Envelope plane | - | 30 feet |
| Primary section | - | ROH 21-4.60 |
| Kakaako oversight | - | HCDA |
Highlighted rows indicate differences between cities.
Ewa Gentry FAQ
How tall can a new two-story home be in Ewa Gentry?
Typical residential districts cap homes at 25 to 30 feet with additional envelope-plane constraints under ROH 21-4.60.
Do solar panels count against the height limit?
Rooftop solar usually qualifies for a limited height exception, but mounting details must still comply with the LUO.
Urban Honolulu FAQ
How tall can I build a house in Urban Honolulu?
Most residential districts cap structures at 25 feet under ROH 21-4.60 with a 30-foot envelope plane rising from side yards. Apartment and mixed-use districts in Waikiki and Kakaako allow much taller buildings.
Why are Waikiki and Kakaako buildings so much taller?
Those districts carry separate height maximums under special district rules and, in Kakaako, Hawaii Community Development Authority oversight. View-corridor protections still limit where high-rises may rise.
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