Flood Zones: Kaneohe vs Waipahu
How do flood zones rules compare between Kaneohe, HI and Waipahu, HI?
Kaneohe and Waipahu have similar restriction levels.
Kaneohe, HI
Honolulu County
Low-lying Kaneohe neighborhoods fall within FEMA flood zones and must follow ROH Chapter 21A elevation, foundation, and variance standards for any construction.
View full Kaneohe 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 | Kaneohe | Waipahu |
|---|---|---|
| - | - |
Highlighted rows indicate differences between cities.
Kaneohe FAQ
How do I check my Kaneohe flood zone?
Use the FEMA Flood Map Service Center or contact Honolulu DPP with your tax map key to confirm your zone.
Can I add living space below BFE?
No, habitable finished space below the base flood elevation is generally not allowed under Chapter 21A.
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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