Tiny Homes: Honolulu vs Urban Honolulu
How do tiny homes rules compare between Honolulu, HI and Urban Honolulu, HI?
Honolulu and Urban Honolulu have similar restriction levels.
Honolulu, HI
Honolulu County
Honolulu has no dedicated tiny-home ordinance. Permanent tiny homes on foundations are regulated as ADUs under ROH Sec. 21-5.720, while movable tiny homes on wheels are not permitted as permanent dwellings in residential districts.
View full Honolulu rules →Urban Honolulu, HI
Honolulu County
Urban Honolulu has no dedicated tiny-home ordinance; permanent tiny homes are regulated as ADUs under ROH Sec. 21-5.720, which effectively limits them to R-5 through R-20 neighborhoods outside the dense apartment core.
View full Urban Honolulu rules →Key Facts Comparison
| Fact | Honolulu | Urban Honolulu |
|---|---|---|
| Governing Section | ROH Sec. 21-5.720 | ROH Sec. 21-5.720 |
| Building Code | ROH Sec. 16-1.1 | ROH Sec. 16-1.1 |
| Tiny Homes on Wheels | Not permanent dwellings | - |
| ADU Limit | One per zoning lot | - |
| Wheeled Tiny Homes | - | Not permanent |
| Eligible Urban Zones | - | R-5 through R-20 |
Highlighted rows indicate differences between cities.
Honolulu FAQ
Are tiny homes legal on Oahu?
Yes, if they are built on a permanent foundation and comply with ADU rules under ROH Sec. 21-5.720. Tiny homes on wheels are not permitted as permanent residences.
Can I park a tiny house on wheels in my yard and live in it?
No. Recreational-vehicle-style tiny homes cannot be used as a permanent dwelling in Honolulu residential districts under the Land Use Ordinance.
Urban Honolulu FAQ
Can I place a tiny home on a Kakaako lot?
Generally no. Kakaako is mostly BMX and A-2 zoning, which does not allow ADUs. Tiny homes are limited to R-5 through R-20 districts under ROH Sec. 21-5.720.
Is a tiny house on wheels a legal residence in Urban Honolulu?
No. Wheeled tiny homes are treated as recreational vehicles and cannot be used as permanent dwellings in residential districts under the Land Use Ordinance.
Compare other topics
See how Honolulu and Urban Honolulu compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool