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πŸ—οΈ Accessory Structures/Garage Conversions

Garage Conversions: Kaneohe vs Mililani Mauka

How do garage conversions rules compare between Kaneohe, HI and Mililani Mauka, HI?

Kaneohe has fewer restrictions than Mililani Mauka.

Kaneohe, HI

Honolulu County

Some Restrictions

Converting a Kaneohe garage into living space is regulated as an ADU under ROH Sec. 21-5.720, requiring building permits, parking replacement, and occupancy compliance.

View full Kaneohe rules β†’

Mililani Mauka, HI

Honolulu County

Heavy Restrictions

Garage conversions in Mililani Mauka follow ADU rules under ROH Sec. 21-5.720 and permit rules under Sec. 18-3.2, plus separate Mililani Mauka Community Association design approval.

View full Mililani Mauka rules β†’

Key Facts Comparison

FactKaneoheMililani Mauka
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Highlighted rows indicate differences between cities.

Kaneohe FAQ

Can I convert my Kaneohe garage into a rental?

Yes, with ADU permits under Sec. 21-5.720, building permits, parking replacement, and a minimum 30-day rental term.

What if my previous owner converted the garage?

You may be able to legalize the conversion via after-the-fact permit if it was done before September 14, 2015 and meets current ADU standards.

Mililani Mauka FAQ

Will the HOA approve a full garage conversion?

Often not. Many Mililani Mauka Community Association standards require the home to keep its original garage and parking.

Can I convert just part of the garage?

Possibly, if a permit is obtained, required parking is preserved, and the HOA approves the design.

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