Fontana, CA Home Business: Signage Rules (2026)

Fontana Municipal Code Title 30 regulates signage throughout the city and applies strict limits to residential zones. Home occupations must not display any sign, symbol, banner, pennant, or lighted advertisement identifying the business. This prohibition covers window lettering, A-frame sidewalk signs, yard stakes, vehicle lettering parked on site to serve as signage, and any exterior feature intended to attract customers. The only identification allowed on a residential property is the standard house number as required by Fontana Fire Prevention (typically 4-inch contrasting numerals visible from the street) and, where applicable, a small address plaque. Inside the dwelling, signage for internal use is fine. Violations draw Code Enforcement attention quickly because they indicate a home occupation in an R-zone neighborhood. First notices are typically informational, but persistent violations can lead to administrative citations and revocation of the Home Occupation Permit. If a business reaches a scale where signage is important, it should relocate to a commercial zone where C-district signage rules (wall signs, monument signs, sign programs) apply. Vehicles with lettering used in the course of the business may be parked at the residence if they fit within commercial-vehicle parking rules and are not used as static advertising - working trucks parked overnight in a driveway are generally okay, but a wrap van parked in the front yard as a sign is not.