Yuba City, CA Home Business: Signage Rules (2026)

5002(b) sets nine conditions a home-based business must meet to operate in a Yuba City residential district without a separate permit, and signage receives its own flat prohibition rather than a size or placement limit: condition (6) states that no external signage relative to the business shall be allowed. There is no exception for a small nameplate, a sandwich board, or a temporary sign during business hours; the rule bars exterior signage outright, distinguishing home occupations from the commercial sign standards that apply in business districts under other articles of Chapter 5.

The signage ban works together with condition (5), which requires that the home occupation produce no exterior evidence of its existence beyond the premises, including but not limited to outdoor storage, noise, smoke, odors and vibrations. Read together, these two conditions mean a passerby on the street should have no visual or sensory indication that a business operates inside the house at all. 5002(b): a home occupation is tolerated only because it stays invisible from outside the dwelling. A resident who posts a yard sign, window sign, or vehicle-mounted advertisement pointing to a home-based business is out of compliance with condition (6) regardless of the sign's size.