Sierra County, CA Home Business: Signage Rules (2026)

Sierra County's zoning definitions in Sierra County Code section 15.08.200 establish the framework for signs. A 'sign' is broadly defined as anything placed, erected, or made visible for outdoor informational or advertising purposes, and for a double-faced sign the gross surface area of both sides is counted toward advertising area. The code distinguishes among sign types: an 'informational sign' is limited to identifying the operator and the name of the product, service, or facility available on the premises (located on-site or within 100 feet); a 'directional sign' gives directions to a community or public place; and an 'advertising sign' is generally a remotely located, off-premises sign. The zoning code does not set a dedicated home-occupation sign square-footage limit; for a home business approved as a conditional use, any signage is typically governed by the conditions of the use permit and the on-premises informational-sign concept. Off-premises advertising signs are treated more restrictively under the advertising-sign definition. Because there is no standalone numeric home-occupation sign standard in the County code, applicants should confirm allowable signage with the Planning Department when seeking a use permit. The County administers signage rules throughout the unincorporated area.