Tiny home rules in Philadelphia County, PA β covering tiny houses on wheels (THOWs), park model RVs, and tiny home on foundation builds β determine where they are legal and how they get permitted.
Philadelphia County does not have tiny home specific zoning. Tiny homes on permanent foundations must meet full Philadelphia Building Code standards. Tiny homes on wheels are treated as RVs and cannot be used as permanent residences on residential lots.
Philadelphia Zoning and Building Codes do not specifically recognize tiny homes. Dwellings under 500 square feet on permanent foundations must still comply with full IRC standards adopted by the Philadelphia Building Code including minimum room sizes, egress, ceiling heights, and energy code. Tiny homes on wheels (THOWs) are classified as recreational vehicles under PA Vehicle Code and cannot be used as permanent dwellings on residential parcels; zoning does not permit RVs as permanent residences. Minimum dwelling unit size in most residential districts effectively rules out very small homes.
Using a THOW or non-compliant tiny home as residence: zoning violation, fines $500-$2,000, and order to vacate.
Philadelphia County, PA
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See how Philadelphia County's tiny homes rules stack up against other locations.
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