Tiny home rules in Westchester County, NY — covering tiny houses on wheels (THOWs), park model RVs, and tiny home on foundation builds — determine where they are legal and how they get permitted.
Tiny homes must meet NYS Uniform Code and NYS Residential Code Appendix Q (tiny houses under 400 sq ft). Westchester County has no county tiny-home rule.
Appendix Q permits lofts, ladders, and reduced ceiling heights in homes 400 sq ft or less. Tiny houses on wheels are typically classified as RVs and cannot be used as permanent dwellings in most Westchester municipalities. Foundation-built tiny homes need a municipal building permit and must meet local minimum dwelling size rules.
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See how Westchester County's tiny homes rules stack up against other locations.
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