City & County
of Honolulu

Yes, higher standards include Cumulative substantial improvement (SI)/substantial damage (SD) -5 years; Limit of no more than two dwellings in a lot within Floodway; Floodway Permit requirement for new buildings & substantial improvements proposed in a Floodway.

Maui County

Yes. One foot freeboard for lowest floor and machinery and equipment. Cumulative SI/SD over 10 years. Enclosure limits for V zones (5 feet or more in height) requires a non-conversion agreement recorded with the Bureau of Conveyance. Compensatory storage for A zones without a floodway. Maui County also enforces storm water management regulations.

Kauaʻi County

Yes. 1) All new construction, substantial improvement (SI)/substantial damage (SD) requires +1 foot of freeboard within Special Flood Hazard Areas (SFHA). 2) SI determination based on 10 years cumulative calculation. 3) Sea Level Rise Constraint District which has +2 feet of freeboard for residential structures.

Hawai'i County

Yes. Freeboard: +1′ freeboard (zones AE, AH, AO); Cumulative substantial improvement (SI) -3 years; machinery & equipment (electrical, heating, ventilation, plumbing, air-conditioning equipment, and other service facilities) located above BFE + any required freeboard for new construction, repetitive loss structure improvements, and SI; no-rise certification for fill within all Special Flood Hazard Areas (SFHA).