FEMA flood zone rules in Kapolei, HI — also called floodplain regulations or special flood hazard area (SFHA) rules — determine flood insurance requirements and elevation standards for new construction.
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.
Chapter 21A governs floodplain development. Key sections include 21A-1.5 adopting FEMA FIRMs for special flood hazard areas, 21A-1.8 imposing flood fringe standards requiring elevation to or above base flood elevation, and 21A-1.12 establishing flood variance standards. LUO Sec. 21-9.10 cross-references development in flood hazard areas. Portions of Kapolei sit on the low-lying leeward plain with engineered drainage channels, so some parcels can fall within Zones AE, AH, or X-shaded. Substantial improvements and new construction in mapped zones must meet flood elevation and flood-proofing standards.
Building below base flood elevation, failing to flood-proof, or ignoring FIRM-mapped hazards can lead to permit revocation, insurance issues, and required retrofits.
Kapolei, HI
ROH Sec. 16-6.2 requires Kapolei residential swimming pools to be enclosed by a complete barrier with self-closing gates designed to prevent access by young ...
Kapolei, HI
ROH Sec. 21-4.40 limits fill-containing retaining walls in Kapolei to six feet within required yards and combines terraced wall heights for compliance measur...
Kapolei, HI
ROH Sec. 21-4.60 defines fences to include wrought iron, wire, wood, vinyl, and plastic, giving Kapolei residents a broad palette of compliant materials.
Kapolei, HI
ROH Sec. 21-4.30 controls what Kapolei neighbors can install in required yards along shared property lines, since Honolulu does not have a dedicated city spi...
Kapolei, HI
Public parks in Kapolei are closed during posted night hours under ROH Sec. 10-1.2, though beach parks allow direct traverse to the shoreline during closure.
Kapolei, HI
Kapolei follows HRS Sec. 577-16, which bars children under 16 from public places between 10 p.m. and 4 a.m. without a parent or guardian; Honolulu has no sep...
Side-by-side rule comparisons with other cities in Honolulu County.
See how other cities in Honolulu County handle flood zones.
See how Kapolei's flood zones rules stack up against other locations.
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