Bolthole Index county-legal census · checked 2026-11-13
1 of Oregon's 36 counties — 3% — set no minimum dwelling size. That is the 42nd-largest count of any state. The strongest of them on the Bolthole Index is Washington County (50/100). 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 626 counties nationwide → Oregon: no building codes → Oregon: owner-builder → Oregon: rv living → Oregon: tiny homes → Full Oregon profile →
1 of 36 Oregon counties · sorted by Index score
Dwellings in unincorporated Washington County under the Community Development Code (CDC) County FAQ statement that the CDC does not address dwelling size; it does not cover inco…
Washington County Land Use & Transportation: Tiny Home FAQ ↗Every county here has a full profile — water, land prices, hazard safety, seclusion, and the rest of its building rules. See the Oregon state page for all 36 counties ranked, or go back to the national list.
Off-grid gear
Building on land in one of these Oregon 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.
