Honolulu County, HI Home Business: Zoning & Home Occupation Permits (2026)
Key Facts
- Governing section
- ROH § 21-5.50-3(b)
- Indoor storage cap
- 250 cu ft or 20% of floor area
- Outdoor storage
- Prohibited
- Signage
- Prohibited
- Non-household employees allowed
- One at a time
Summary
Honolulu permits home occupations in dwelling units islandwide when the business stays clearly incidental and subordinate to residential living, with no onsite signage, no outdoor storage, indoor storage capped at 250 cubic feet or 20 percent of floor area, and only one non-household employee on site at a time.
(A) The home occupation must be clearly incidental and subordinate to the use of the dwelling unit and zoning lot for residential living. (B) ... Onsite signage or advertisements for the home occupation is prohibited. (C) The outdoor storage of materials or supplies is prohibited. (D) The indoor storage of materials or supplies must not exceed 250 cubic feet or 20 percent of the total floor area of the dwelling unit, whichever is greater.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-10: Supplement 10, 12-2025 Ordinance No. 25-40 through Ordinance No. 25-56).
Full Breakdown
50-3(b) treats the dwelling as the primary use and the business as the guest. The home occupation must be clearly incidental and subordinate to the use of the dwelling unit and zoning lot for residential living, and it cannot change the home's exterior appearance, so the property must keep reading as a residence from the street. Onsite signage or advertisements for the home occupation are prohibited outright. Storage is regulated in both directions: outdoor storage of materials or supplies is banned completely, while indoor storage must not exceed 250 cubic feet or 20 percent of the total floor area of the dwelling unit, whichever is greater.
Because the greater of the two figures controls, a larger Honolulu home can qualify for more storage than the 250 cubic foot baseline. 50-3(b)(4)(A), which caps how visible the operation can become to neighbors. The allowance also extends into the B-1 and B-2 business zoning districts, where a home occupation is additionally permitted in a dwelling unit within a multi-unit building.
Violations & Fines
The director may order mitigation of noise and odor impacts or order the home occupation to cease if impacts cannot be adequately mitigated.
Frequently Asked Questions
Can I put up a sign for my Honolulu home business?
Can I hire help for a home occupation in Honolulu?
How much inventory or supplies can I keep at home?
Sources & Official References
Other rules in Honolulu County
How Honolulu County compares: Easiest Cities to Run a Home Business·Compare Honolulu County to another location·View the Hawaii home business overview
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