Carport Rules: Urban Honolulu vs Waipahu
How do carport rules rules compare between Urban Honolulu, HI and Waipahu, HI?
Urban Honolulu has fewer restrictions than Waipahu.
Urban Honolulu, HI
Honolulu County
Urban Honolulu carports must comply with the 20-by-20-foot horizontal limit in ROH Sec. 21-2.140-1, with Type V-B hillside carports allowed extra height in mauka neighborhoods like Makiki Heights and Manoa.
View full Urban Honolulu rules →Waipahu, HI
Honolulu County
Carports in Waipahu are capped at 20 by 20 feet horizontally. Hillside Type V-B carports may exceed one story under specified conditions, though most Waipahu lots are relatively flat.
View full Waipahu rules →Key Facts Comparison
| Fact | Urban Honolulu | Waipahu |
|---|---|---|
| Code Section | ROH Sec. 21-2.140-1 | - |
| Max Dimensions | 20 ft by 20 ft | - |
| Hillside Exception | Type V-B carports | - |
| Setback Reference | ROH Sec. 21-4.30 | - |
| - | - |
Highlighted rows indicate differences between cities.
Urban Honolulu FAQ
Can my carport be larger than 20 by 20 in Urban Honolulu?
No. ROH Sec. 21-2.140-1 caps carport and detached garage horizontal dimensions at 20 feet by 20 feet, regardless of neighborhood.
I live on a hillside in Makiki Heights. Can I build a two-story carport?
Possibly. Type V-B hillside carports may exceed one story under specified conditions in Sec. 21-2.140-1. Confirm the exact criteria with the Department of Planning and Permitting.
Waipahu FAQ
Can I add a carport to fit my family's multiple cars?
Yes, up to 20 by 20 feet, meeting setbacks and height. Multi-car households often need additional off-street parking configurations planned with DPP.
Do I need a permit to replace my existing carport roof?
Likely yes if structural work is involved. Check with DPP for specific thresholds under Sec. 18-3.2 before starting work.
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