Tiny Homes Zoning — State ProfileReviewed 2026-08-23
Can you put a tiny home in Delaware?
Current tiny-home-on-wheels and ADU rules for Delaware, sourced and dated — plus verified local builders.
DEPENDS ON LOCATION
Delaware — No statewide ADU law — three counties, three very different answers (verified 2026-08)
Tiny home on wheelsNo statewide tiny-home-on-wheels law; regulation is set at the county or municipal level. Sussex County explicitly allows park-model tiny homes on a permanent foundation, meeting 2018 IECC insulation standards and a 70 sq ft minimum habitable space.
ADU / accessory unitThis replaces a thin earlier draft with real, county-by-county specifics that differ sharply: New Castle County has the most developed ADU program in the state, and Ordinance 24-087 (Sept. 2024) reduced the minimum lot size for a detached ADU from 2 acres down to just 0.5 acres. Sussex County broadened its ADU allowance via a June 2024 ordinance, now permitting up to 1,000 sq ft with a full kitchen. Kent County, by contrast, has no by-right ADU path at all — every application goes through a case-by-case Board of Adjustment hearing.
Minimum square footageSussex County's park-model standard sets a 70 sq ft minimum habitable space; other counties vary
Foundation requirementNew Castle and Sussex counties have real, documented by-right or near-by-right paths; Kent County requires discretionary approval regardless of design
Local notesDelaware's three counties are genuinely three different regulatory climates, not a single 'local control' story — New Castle and Sussex have gotten more permissive in 2024, while Kent remains the most restrictive of the three.
!Zoning is set by your specific city or county, not the state as a whole. Use this as a starting point, then confirm with the local building or planning department before you buy land or start a build. Not legal advice.
Last reviewed 2026-08-23