Tiny home rules in Santa Clara, CA — 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.
In Santa Clara, permanent tiny homes on foundations may be approved as ADUs. Tiny homes on wheels are treated as RVs and cannot be used as long-term residences on private lots.
California treats tiny homes in two categories. Movable Tiny Houses on wheels are regulated as recreational vehicles or park trailers under HCD; they are not approved as permanent dwellings on residential lots in Santa Clara and may only be occupied as temporary RVs within city RV rules. Tiny homes built on permanent foundations that meet the California Building Code or California Residential Code can qualify as ADUs or JADUs under Gov Code 65852.2, provided they include a permanent kitchen and bathroom, minimum habitable room sizes, and proper egress. Modular factory-built homes certified by HCD to the state factory-built housing standard can also be installed as ADUs. Parking a tiny home on wheels as an occupied residence on a residential lot is generally prohibited, though some owners use them as guest or work spaces within zoning rules.
Contact your local code enforcement office for specific penalty information.
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Side-by-side rule comparisons with other cities in Santa Clara County.
See how other cities in Santa Clara County handle tiny homes.
See how Santa Clara's tiny homes rules stack up against other locations.
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