Tiny Homes Zoning — State ProfileReviewed 2026-08-23
Can you put a tiny home in Pennsylvania?
Current tiny-home-on-wheels and ADU rules for Pennsylvania, sourced and dated — plus verified local builders.
DEPENDS ON LOCATION
Pennsylvania — Local control today; a statewide bill has cleared the House (verified 2026-08)
Tiny home on wheelsNo statewide tiny-home law. The Uniform Construction Code (UCC) sets statewide minimum building standards (including a 70 sq ft minimum for habitable rooms), but whether a tiny home can be placed and occupied at all is purely a matter of local township or borough zoning.
ADU / accessory unitPennsylvania has no statewide ADU law as of this review — each of its roughly 2,560 municipalities sets its own rules, and neighboring townships can differ sharply. Worth tracking: House Bill 2186 passed the PA House and would require every municipality to allow one ADU per residential lot by right; it's now in the Senate, where statewide zoning preemption has historically faced resistance from township associations.
Minimum square footageUCC sets a 70 sq ft minimum for habitable rooms statewide; municipalities can add their own dwelling-size minimums on top
Foundation requirementFoundation-built units are reviewed under the UCC by the local code office or a certified third-party agency; wheeled units are generally treated like RVs
Local notesSouth-central and rural Pennsylvania counties (parts of Lancaster County, for example) are generally more open than the Philadelphia and Pittsburgh metro areas, but check the specific township — this is one of the most locally fragmented states covered here.
!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