Flood Zones: Ewa Gentry vs Waipahu
How do flood zones rules compare between Ewa Gentry, HI and Waipahu, HI?
Ewa Gentry and Waipahu have similar restriction levels.
Ewa Gentry, HI
Honolulu County
Ewa Gentry parcels mapped within FEMA special flood hazard areas are regulated by ROH Chapter 21A, which sets elevation and construction standards for floodplain development.
View full Ewa Gentry rules →Waipahu, HI
Honolulu County
Waipahu development in FEMA-mapped flood zones must comply with ROH Chapter 21A, covering special flood hazard areas, elevation standards, and flood variance procedures.
View full Waipahu rules →Key Facts Comparison
| Fact | Ewa Gentry | Waipahu |
|---|---|---|
| - | - |
Highlighted rows indicate differences between cities.
Ewa Gentry FAQ
How do I know if my Ewa Gentry home is in a flood zone?
Check the FEMA Flood Insurance Rate Map adopted by Sec. 21A-1.5 or contact the Department of Planning and Permitting for a formal determination.
Can I get a variance from flood elevation standards?
Sec. 21A-1.12 provides a flood variance procedure, but it is limited and requires specific findings about hardship and compliance with federal standards.
Waipahu FAQ
Is my Waipahu house in a flood zone?
Review the FEMA Flood Insurance Rate Maps adopted under Sec. 21A-1.5 through city GIS or the FEMA map portal to find your property's specific flood zone designation.
Can I finish my basement in a flood zone?
Finishing below base flood elevation is generally restricted. Enclosures below BFE must meet flood opening and material requirements under Sec. 21A-1.8, so check with permitting first.
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