Riverside, CA Home Business: Signage Rules (2026)

Riverside's home-occupation standards in the Zoning Code are clear: there shall be no exterior evidence of a business being conducted on residential premises. This means no hanging shingles, no yard signs, no vehicle wraps parked prominently to advertise, no window lettering, and no illuminated signs of any kind. Even a small plaque by the door bearing a business name typically runs afoul of the rule. The prohibition extends to temporary signs — no sandwich boards, banners, or open flags — and no signs on fences or mailboxes. The only permitted identification is the standard house number and a small name plate (personal, not commercial) consistent with residential use. RMC Chapter 19.690 (Sign Regulations) reinforces this by restricting commercial signage to commercial and industrial zones. Violations are enforced by Code Enforcement and typically begin with a warning to remove the sign within 10 days; continued violations may result in administrative citations starting around $100 per violation and escalating for repeat offenses. A business needing signage to attract customers is by definition not a permissible home occupation under Riverside's zoning — it belongs in a commercial zone. Professionals who list their home address with the state licensing board should use a P.O. box or mail-forwarding service rather than advertise the address publicly. Vehicles with business logos may be parked at the residence but should not be used primarily as advertising displays in the driveway or at the curb.