Corona, CA Home Business: Signage Rules (2026)

Corona's Home Occupation standards explicitly prohibit any change in the outside appearance of the home or any visible evidence that a business is being conducted on the premises. This means no commercial signs, banners, A-frames, window graphics, or vehicle wraps parked overnight that advertise services. The general Sign Code (CMC Chapter 17.74) limits signage in residential zones to: identification nameplates (1 sq ft maximum, non-illuminated, attached flush to the building), real estate signs during active listings, political signs subject to state/federal law, and certain public notice signs. Home occupations may not use yard signs, flags, or pennants to attract customers. Vehicles registered to the home occupation may bear standard vehicle lettering but cannot be parked in a manner that constitutes a 'rolling sign' (e.g., parked on the front lawn or angled to face the street as a billboard). Cottage food operations may indicate their CFO registration but may not erect retail signage. Violations are abated through Code Enforcement under CMC Chapter 1.16, with administrative citations starting around $100. HOAs in Corona may impose stricter aesthetic limits on signage under their CC&Rs.