East Honolulu vs Mililani Town
How do flood zones rules compare between East Honolulu, HI and Mililani Town, HI?
Mililani Town has fewer restrictions than East Honolulu.
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 →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 | East Honolulu | Mililani Town |
|---|---|---|
| - | - |
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.
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.
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