Kapolei vs Mililani Town
How do flood zones rules compare between Kapolei, HI and Mililani Town, HI?
Mililani Town has fewer restrictions than Kapolei.
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 →Mililani Town, HI
Honolulu County
Most of Mililani Town is outside high-risk flood zones, but drainage ways and gulches fall under ROH Chapter 21A elevation and variance standards where they apply.
View full Mililani Town rules →Key Facts Comparison
| Fact | Kapolei | Mililani Town |
|---|---|---|
| - | - |
Highlighted rows indicate differences between cities.
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.
Mililani Town FAQ
How do I find my Mililani flood zone?
Use FEMA's online flood map service or ask Honolulu DPP for a zone determination using your tax map key.
Do I need flood insurance if I am not in a high-risk zone?
It is optional in most Mililani areas, though lenders may still require it for gulch-adjacent parcels.
Compare other topics
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