Garage Conversions: Kailua vs Mililani Town
How do garage conversions rules compare between Kailua, HI and Mililani Town, HI?
Kailua has fewer restrictions than Mililani Town.
Kailua, HI
Honolulu County
Converting a Kailua garage into living space is regulated as ADU creation under the Land Use Ordinance, requiring permits, parking replacement, and compliance with occupancy rules.
View full Kailua rules →Mililani Town, HI
Honolulu County
Garage conversions in Mililani Town are regulated as ADUs under ROH Sec. 21-5.720 and commonly prohibited or restricted by HOA covenants, requiring both city permits and association approval.
View full Mililani Town rules →Key Facts Comparison
| Fact | Kailua | Mililani Town |
|---|---|---|
| - | - |
Highlighted rows indicate differences between cities.
Kailua FAQ
Can I convert my Kailua garage without a permit?
No. Garage conversions into habitable space require building permits and must satisfy ADU zoning rules, including parking replacement.
What if my garage was converted before I bought the house?
If the conversion occurred before September 14, 2015, you may be able to legalize it through an after-the-fact permit under ROH Sec. 21-5.720.
Mililani Town FAQ
Can I convert my Mililani garage into a bedroom?
Check your HOA CC&Rs first. Many Mililani associations prohibit garage conversions. If allowed, a city building permit and ADU compliance are still required.
What if my neighborhood allows it but parking is tight?
You will need to provide replacement parking on your lot that meets city standards and often HOA surface and placement rules.
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