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πŸ—οΈ Accessory Structures/ADU Rules

ADU Rules: Mililani Town vs Pearl City

How do adu rules rules compare between Mililani Town, HI and Pearl City, HI?

Pearl City has fewer restrictions than Mililani Town.

Mililani Town, HI

Honolulu County

Heavy Restrictions

Mililani Town homeowners may build one ADU per zoning lot under ROH Sec. 21-5.720, but HOA covenants and association design rules often impose additional restrictions on top of city code.

View full Mililani Town rules β†’

Pearl City, HI

Honolulu County

Some Restrictions

Pearl City homeowners, including military families near Pearl Harbor, may build one accessory dwelling unit per zoning lot in eligible residential districts, subject to parking, occupancy, and rental-duration limits.

View full Pearl City rules β†’

Key Facts Comparison

FactMililani TownPearl City
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Highlighted rows indicate differences between cities.

Mililani Town FAQ

Does Mililani Town allow ADUs?

City zoning allows one ADU per eligible lot, but the Mililani Town Association and your neighborhood association may restrict or prohibit them. Always check your CC&Rs first.

Can I rent my Mililani ADU short-term?

No. City rules require 30-day minimum rentals under ROH Sec. 21-5.720, and most Mililani HOAs additionally restrict short-term rentals.

Pearl City FAQ

Can a military family add an ADU for visiting relatives?

Yes, if the property is in an eligible residential district and meets ADU standards. Long-term rental is allowed, but short-term rental under 30 days is not.

Does the ADU need its own parking stall?

Yes, ADUs typically require an additional off-street parking space under Sec. 21-5.720. Verify the specific requirement with DPP before applying.

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