San Bernardino County RV & Boat Parking Rules (2026) — What You Need to Know

San Bernardino County's rules for parking RVs and commercial vehicles on residential property are governed by Development Code Section 83.11.100. The regulations differ significantly depending on which of the county's three geographic regions the property is located in: Valley, Mountain, or Desert.

In the Valley Region, one truck tractor with a trailer or semi-trailer may be parked on the owner/operator's residential parcel if the parcel is at least one acre. The vehicle must be positioned so all parts are at least 5 feet from interior property lines, 15 feet from public rights-of-way and easements, and 70 feet from any structure used for human habitation or public assembly on adjoining properties.

In the Desert Region, the minimum parcel size is reduced to half an acre for one truck tractor with trailer. Additional truck tractors with trailers may be permitted with additional acreage, up to a maximum of three such vehicles per parcel. The same setback requirements apply.

In the Mountain Region, commercial vehicle parking in residential areas is prohibited entirely, with the only exception being temporary parking for active deliveries or services to properties in the immediate area.

For RVs (recreational vehicles) not classified as commercial vehicles, they may be stored on residential property as long as they are within a garage or positioned outside of required building setback areas. An RV cannot be rented as a short-term rental. Across all regions, refrigeration units on commercial vehicles may not operate between 8 PM and 8 AM unless noise is reduced to 45 dB(A) or less at the property line. Outdoor storage of equipment, materials, or supplies is prohibited, and no more than 10 gallons of fuel may be dispensed on-site.