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🌍 Environmental Rules/Flood Zones

East Honolulu vs Pearl City

How do flood zones rules compare between East Honolulu, HI and Pearl City, HI?

East Honolulu and Pearl City have similar restriction levels.

East Honolulu, HI

Honolulu County

Heavy Restrictions

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 β†’

Pearl City, HI

Honolulu County

Heavy Restrictions

Development in Pearl City's FEMA-mapped flood zones must comply with ROH Chapter 21A, which governs special flood hazard areas, elevation standards, and flood variance procedures.

View full Pearl City rules β†’

Key Facts Comparison

FactEast HonoluluPearl City
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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.

Pearl City FAQ

Is my Pearl City home in a flood zone?

Check the FEMA Flood Insurance Rate Maps adopted under Sec. 21A-1.5 via the city's GIS or the FEMA map portal to determine your specific flood zone designation.

What does base flood elevation mean?

Base flood elevation is the water surface level expected during a one-percent-annual-chance flood. Under Sec. 21A-1.8, new flood fringe construction must elevate to or above this level.

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