Napa regulates recreational vehicles, boats, and trailers under Napa Municipal Code Β§10.36.070 (Trailers and Oversized Vehicle Regulations, as amended by Ordinance O2024 effective January 17, 2025) and the Title 17 Zoning Ordinance setback rules. On public streets and alleys, any RV, motor home, travel trailer, boat, boat trailer, or other vehicle longer than 20 feet or wider/taller than 85 inches may not park more than 4 consecutive hours before relocating at least 1,320 feet (one-quarter mile) for at least 72 hours. On private residential property, RVs, motor homes, boats, and trailers may not be stored in any required front or side yard setback.
Napa's RV parking rules combine state vehicle law, recent local ordinance amendments, and Title 17 zoning. (1) On public streets and alleys: NMC Β§10.36.070, fully rewritten by Ordinance O2024 adopted December 17, 2024 (effective January 17, 2025), defines an 'oversized vehicle' as any vehicle, motorized or nonmotorized, that exceeds 20 feet in length, or 85 inches in width, or 85 inches in height (mirrors and accessories count toward the dimension). Oversized vehicles also automatically include buses (California Vehicle Code Β§233), trailers and semi-trailers (CVC Β§630), boats not connected to trailers, trailer coaches (CVC Β§635), and recreational vehicles (motor homes, slide-in campers, travel trailers, truck campers, camping trailers, fifth-wheel travel trailers). Such vehicles may not stop, park, or stand on any public street, alley, or right-of-way for more than 4 consecutive hours, after which they must relocate more than 1,320 feet for at least 72 hours. A 48-hour loading/unloading exemption applies when the RV is parked immediately adjacent to the property where it is DMV-registered. (2) State-law 72-hour rule: California Vehicle Code Β§22651(k) independently authorizes tow of any vehicle parked on a public street for 72 or more consecutive hours; NMC Β§10.36.090 (also rewritten by Ordinance O2024) implements this with a 1,320-foot proof-of-movement standard (100 feet for vehicles registered to that street with no driveway). (3) On private property: the Napa Zoning Ordinance (Title 17) prohibits storage of motor vehicles, motor homes, recreational vehicles, boats, airplanes, trailers, parts, and salvaged materials in any required front or side setback area of a residential property. (4) Enforcement: Napa Police Department enforces on-street violations and may tow under California Vehicle Code Β§Β§22650 et seq.; the Community Development Department / Code Enforcement enforces private-property setback storage violations under Title 17.
Parking an RV, boat, trailer, or other oversized vehicle on a Napa street or alley beyond 4 consecutive hours without the required 1,320-foot relocation, or beyond 72 hours under NMC Β§10.36.090, is a citable infraction and the vehicle may be removed by Napa Police under California Vehicle Code Β§Β§22650 et seq. Storing an RV, boat, motor home, or trailer in a required front or side setback on a residential lot is a Title 17 zoning violation enforceable by Napa Code Enforcement with notices of violation, administrative citations, and continuing daily fines until corrected.
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