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πŸ—οΈ Accessory Structures/Garage Conversions

Garage Conversions: Mililani Mauka vs Pearl City

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

Pearl City has fewer restrictions than Mililani Mauka.

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†’

Pearl City, HI

Honolulu County

Some Restrictions

Converting a garage into living space in Pearl City is treated as an ADU under the Land Use Ordinance, requires building permits, and usually requires replacement off-street parking.

View full Pearl City rules β†’

Key Facts Comparison

FactMililani MaukaPearl City
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Highlighted rows indicate differences between cities.

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.

Pearl City FAQ

Can I legally convert my garage into a bedroom?

Yes, if it meets ADU requirements under Sec. 21-5.720, you provide replacement parking, and you obtain a building permit. Short-term rental is not allowed.

What if a prior owner converted the garage without permits?

You may qualify for an after-the-fact permit if the work was completed before September 14, 2015. Contact DPP for case-specific guidance.

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