Bolthole Index county-legal census · checked 2026-10-07
2 of Hawaii's 5 counties — 40% — allow tiny homes as a dwelling. That is the 25th-largest count of any state. The strongest of them on the Bolthole Index is Kauai County (62/100). Every entry below cites the county’s own official source.
Rules change, and cities inside these counties set their own — treat this as a verified starting point, not legal advice. All 547 counties nationwide → Hawaii: owner-builder → Full Hawaii profile →
From the Hawaii guide
Hawaii has county-specific RV answers for 2 counties: Kauai County is temporary-only and Honolulu County is limited; the other 3 counties remain unconfirmed.6 State vehicle-habitation law requires private-property authorization for both parking and habitation, but counties may enact superseding ordinances; owner permission alone does not settle county land-use approval.2223
Tiny-home answers exist for 3 counties: Kauai County and Hawaii County allow qualifying tiny homes with conditions, while Maui County has a limited answer; 2 counties remain unconfirmed.7 Start with the Hawaii tiny-home county list and the linked county’s requirements.7 Agricultural areas leased under the special agricultural subdivision provision cannot have permanent or temporary dwellings, including trailers and campers, constructed on the leased area.24
From the Hawaii guide, written from the cited official sources and re-checked by an independent reviewer. This is research, not legal advice: confirm with the office before you buy or build.
2 of 5 Hawaii counties · sorted by Index score
Construction and occupancy of a county-defined Tiny House or qualifying factory-built housing/trailer home in Kauai County zoning districts For construction of a Tiny House, Kau…
Article 1: General Provisions — Kaua'i County Comprehensive Zoning Ordinance ↗Tiny houses used as single dwelling units, including tiny houses containing a loft, in Hawaii County. Tiny houses must comply with the International Residential Code except as o…
Hawai‘i County Code, Chapter 5B Residential Building Code ↗Every county here has a full profile — water, land prices, hazard safety, seclusion, and the rest of its building rules. See the Hawaii state page for all 5 counties ranked, or go back to the national list.
Off-grid gear
Building on land in one of these Hawaii counties? The kit we'd start with:
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General guidance, not legal advice. Off-grid, building, and land-use rules are often set at the county level and change often. Verify with your county and state before acting. Data reviewed 2026-06-26.
