Fullerton, CA Home Business: Zoning & Home Occupation Permits (2026)

030(P) treats a home occupation as an accessory use to the dwelling, not a separate commercial use, and enforces that by restricting nearly every visible marker of a business. Staffing is limited to people who permanently live at the residence; no outside employee may work on site. The business may use no more than one room of the dwelling, and any inventory or supplies have to stay inside the house or garage, provided the garage storage does not eat into the parking spaces the zone requires.

Equipment and materials are limited to what a normal household or hobby would use, the operation cannot be evident from outside the house through sound, odor or vibration, and no sign advertising the business may be posted anywhere on the property. No new structure may be built to house the business, and no business-related vehicle may be kept on site beyond what a residential zone would otherwise allow. Traffic is the strictest constraint: the use cannot generate pedestrian or vehicular traffic beyond what is normal for a residential zone, and the ordinance states flatly that there shall be no clients or customers on the premises at any time.

Deliveries are limited to ordinary residential carriers like UPS or Federal Express rather than commercial freight vehicles. Any home-based operation that breaches one of these ten conditions loses its status as an accessory home occupation and is treated as an unpermitted commercial use in a residential zone.