Folsom, CA Business Licensing & Operations: Auto Repair on Residential Property (2026)

2 flatly prohibits on-site storage of hazardous materials, including toxic, explosive, combustible or flammable substances, which covers the motor oil, brake fluid, solvents and gasoline a repair operation routinely stores. 3 separately caps inventory, equipment and fixtures at twenty-five percent of the dwelling's floor area, and subsection E bars any noise, odor, glare or vibration discernible beyond the site, which would catch pneumatic tools, engine testing or paint fumes. 1 allows one commercial vehicle up to one-ton capacity plus no more than two additional vehicles, commercial, employee or client, present at the property at any one time, all requiring off-street parking, which limits how many customer cars can wait for service. 085).