Tiny home rules in Vineyard, 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.
Vineyard is an unincorporated CDP in Sacramento County, so tiny home rules are set by the Sacramento County Zoning Code (Title 5) and Building Code, not a city ordinance. Permanent-foundation tiny homes that meet the 2022 California Building Code may be permitted as Accessory Dwelling Units (ADUs) under Sacramento County Zoning Code Section 5.4.5.F. Tiny homes on wheels (THOWs) are treated as recreational vehicles and cannot be occupied as a permanent residence outside a licensed RV/mobile home park.
Sacramento County has not adopted a stand-alone Tiny Home on Wheels ordinance. Park-model and movable tiny dwellings used as permanent residences must be installed on a permanent foundation and meet the California Residential Code (CRC) — minimum habitable room area is 120 sq ft under CRC R304, and an efficiency dwelling unit must provide at least 220 sq ft. A foundation-built tiny home qualifies as an ADU subject to Zoning Code § 5.4.5.F: detached ADUs may be up to 850 sq ft (one bedroom) or 1,000 sq ft (two or more bedrooms), with a 4-ft minimum setback from rear and interior side property lines and a 16-ft height limit for detached units (25-ft if attached). Building permits run through the Sacramento County Building Permits and Inspection Division (planning.saccounty.gov). RV occupancy on residential lots is limited and cannot serve as a permanent dwelling without a permit.
Occupying a tiny home on wheels as a residence in unincorporated Vineyard outside a licensed park violates Sacramento County Zoning and Building Codes and may trigger code-enforcement citations, daily-accruing fines, and an order to vacate. Building tiny ADUs without permits subjects the owner to stop-work orders and required after-the-fact permits at higher fees.
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Side-by-side rule comparisons with other cities in Sacramento County.
See how other cities in Sacramento County handle tiny homes.
See how Vineyard's tiny homes rules stack up against other locations.
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