Fullerton, CA Home Business: Signage Rules (2026)

Under Fullerton's Zoning Ordinance, home occupations in residential zones must not alter the residential appearance of the dwelling. This includes a strict prohibition on any exterior signage, window signs, banners, flags, sandwich boards, or other advertising visible from the public right-of-way or neighboring properties. The restriction extends to vehicle signage when the vehicle is regularly parked at the residence in a manner that effectively serves as a business sign. Interior signs visible through windows are also prohibited if they advertise the home business. The city's sign ordinance (Municipal Code Chapter 15.52) regulates all signs within the city, and the provisions for residential zones only permit address identification signs, real estate signs, political signs during election periods, and temporary garage sale signs. Commercial business signage is restricted to properties zoned for commercial or industrial use. The intent is to maintain the visual character of Fullerton's residential neighborhoods, which is particularly important in the city's historic districts near downtown. Any home business that requires signage to attract walk-in or drive-by customers is inherently incompatible with the home occupation standards and would need to relocate to a commercially zoned property.