Simi Valley, CA Home Business: Signage Rules (2026)

090, treat any exterior indication of a business as incompatible with a residential neighborhood, and Subsection B(2) states flatly that no sign relating to the home occupation shall be allowed. The prohibition applies regardless of size, illumination, or placement: window signs, yard signs, and vehicle signage identifying the enterprise are all off the table. The sign ban sits inside a broader list of standards a Home Occupation Permit holder must meet under Subsection B, including confining the business to one room covering no more than 20 percent of the dwelling's gross floor area, running the business only through resident labor, and avoiding equipment, traffic, or deliveries that make the home recognized as a place where a home occupation is conducted.

The Director issues Home Occupation Permits administratively within 14 days of a complete application and can deny or condition a permit if any standard, including the sign ban, is not met. A Director's decision is final unless appealed in writing within 14 days under Chapter 9-76 (Appeals), and the applicant pays all appeal fees. Permits also undergo a one-year compliance review and can be revoked by the Planning Commission after a public hearing for a repeated violation, including erecting a sign the permit does not allow.