Bolthole Index county-legal census · checked 2026-10-10
1 of Delaware's 3 counties — 33% — allow tiny homes as a dwelling. That is the 33rd-largest count of any state. The strongest of them on the Bolthole Index is New Castle County (46/100). 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 → Delaware: owner-builder → Full Delaware profile →
From the Delaware guide
Delaware has county-level RV answers for 2 counties: Sussex is classified as limited, while Kent prohibits permanent habitation or long-term occupancy and describes a temporary emergency-residence exception.5 New Castle's absence from those RV answers is not permission to live in an RV; ask New Castle's land-use office before buying an RV for residential use.5
All 3 Delaware counties have tiny-home answers: New Castle County allows qualifying tiny homes as accessory dwelling units on qualifying detached single-family residential lots, while Sussex and Kent are classified as limited.6 Use the Delaware tiny-home county list to compare the available answers.6 Delaware's housing-code floor-area standard is occupant-based, subject to the code's exemptions and health-and-safety applicability conditions; that standard alone does not establish local tiny-home siting permission.203
From the Delaware 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.
1 of 3 Delaware counties · sorted by Index score
Small single-family homes, including tiny homes, used as accessory dwelling units on qualifying single-family detached residential lots in unincorporated New Castle County. The …
newcastlede.gov ↗Every county here has a full profile — water, land prices, hazard safety, seclusion, and the rest of its building rules. See the Delaware state page for all 3 counties ranked, or go back to the national list.
Off-grid gear
Building on land in one of these Delaware 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.
