ADU Rules: East Honolulu vs Kapolei
How do adu rules rules compare between East Honolulu, HI and Kapolei, HI?
East Honolulu and Kapolei have similar restriction levels.
East Honolulu, HI
Honolulu County
East Honolulu homeowners in Hawaii Kai and Aina Haina may build one accessory dwelling unit per zoning lot in eligible residential districts, subject to parking, occupancy, and rental-duration limits under the Honolulu Land Use Ordinance.
View full East Honolulu rules →Kapolei, HI
Honolulu County
Kapolei homeowners may build one ADU per zoning lot in eligible residential districts under ROH Sec. 21-5.720, subject to size, parking, owner-occupancy, and 30-day minimum rental rules.
View full Kapolei rules →Key Facts Comparison
| Fact | East Honolulu | Kapolei |
|---|---|---|
| - | - |
Highlighted rows indicate differences between cities.
East Honolulu FAQ
Can I build an ADU on my Hawaii Kai lot?
Likely yes if your lot is in R-5, R-7.5, or R-10 zoning and meets minimum size requirements. Check with DPP before applying for your permit.
Can I rent my ADU on Airbnb?
No. ADUs in Honolulu may only be rented for periods of 30 days or longer under current ordinance rules.
Kapolei FAQ
Can I add an ADU to my Kapolei home?
Usually yes on eligible residential lots meeting minimum size and parking, but check your HOA covenants too.
Can I rent an ADU nightly to travelers?
No. Rentals under 30 days are prohibited in ADUs under city rules.
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