Flood Zones: East Honolulu vs Kapolei
How do flood zones rules compare between East Honolulu, HI and Kapolei, HI?
East Honolulu and Kapolei have similar restriction levels.
East Honolulu, HI
Honolulu County
Development in East Honolulu's FEMA-mapped flood zones falls under ROH Chapter 21A, which governs special flood hazard areas, flood fringe elevation standards, and flood variance procedures.
View full East Honolulu rules →Kapolei, HI
Honolulu County
Kapolei parcels within FEMA special flood hazard areas are regulated by ROH Chapter 21A, which sets elevation, flood-proofing, and variance standards for floodplain development.
View full Kapolei rules →Key Facts Comparison
| Fact | East Honolulu | Kapolei |
|---|---|---|
| - | - |
Highlighted rows indicate differences between cities.
East Honolulu FAQ
How do I know if my Aina Haina home is in a flood zone?
Check the FEMA Flood Insurance Rate Maps adopted under Sec. 21A-1.5 through the city's GIS or the FEMA map service center to determine your property's flood zone designation.
What elevation must new construction meet?
Under Sec. 21A-1.8, new construction in the flood fringe must be elevated to or above base flood elevation, with specific requirements depending on the flood zone designation.
Kapolei FAQ
Is my Kapolei property in a flood zone?
Check the FEMA FIRM adopted by Sec. 21A-1.5 or request a determination from the Department of Planning and Permitting before starting any project.
Can I build a finished basement in a Kapolei flood zone?
Below-base-flood-elevation occupied space is generally restricted under Chapter 21A's elevation standards for new construction and substantial improvements.
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