ADU Rules: Kapolei vs Mililani Mauka
How do adu rules rules compare between Kapolei, HI and Mililani Mauka, HI?
Kapolei has fewer restrictions than Mililani Mauka.
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 →Mililani Mauka, HI
Honolulu County
Mililani Mauka homeowners may build one ADU per zoning lot under ROH Sec. 21-5.720 if city rules and the Mililani Mauka Community Association covenants allow, with parking and 30-day rental minimums required.
View full Mililani Mauka rules →Key Facts Comparison
| Fact | Kapolei | Mililani Mauka |
|---|---|---|
| - | - |
Highlighted rows indicate differences between cities.
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.
Mililani Mauka FAQ
Does the Mililani Mauka HOA allow ADUs?
Check the Mililani Mauka Community Association design guidelines; approval is required before any city permit can legally be used on a covenanted lot.
Can I rent my ADU short-term?
No. Rentals under 30 days are prohibited in ADUs under city rules.
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