Carport Rules: East Honolulu vs Mililani Mauka
How do carport rules rules compare between East Honolulu, HI and Mililani Mauka, HI?
East Honolulu and Mililani Mauka have similar restriction levels.
East Honolulu, HI
Honolulu County
Carports in East Honolulu are limited to 20 by 20 feet in horizontal dimensions. Hillside carports of Type V-B construction may exceed one story under specified conditions, reflecting Hawaii Kai's sloping terrain.
View full East Honolulu rules →Mililani Mauka, HI
Honolulu County
Carports in Mililani Mauka are limited to 20 ft by 20 ft horizontally under ROH Sec. 21-2.140-1, with setbacks from Sec. 21-4.30 and height from Sec. 21-4.60 also applying.
View full Mililani Mauka rules →Key Facts Comparison
| Fact | East Honolulu | Mililani Mauka |
|---|---|---|
| - | - |
Highlighted rows indicate differences between cities.
East Honolulu FAQ
Can I build a two-story carport on my hillside lot?
Possibly, if it is Type V-B construction and meets the specified hillside conditions. A building permit and structural review from DPP are required.
How big can my carport be?
Carports in Honolulu are capped at 20 feet by 20 feet in horizontal dimensions under Sec. 21-2.140-1. Setbacks and height also apply.
Mililani Mauka FAQ
Can I add a second carport?
Only if total dimensions, setbacks, and HOA standards allow; review both city and MMCA rules first.
Is a carport cover a permit activity?
Yes, any attached structural cover requires a building permit.
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