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

Signage for a home occupation in the unincorporated County is governed by standard 6 of Section 27.3(j) of the Lake County Zoning Ordinance (also restated in the County's Home Occupation Terms and Conditions). One non-illuminated sign is permitted. In the R1 and R2 zoning districts, and on lots of less than one acre in the SR district, the sign may not exceed one square foot in area and must be mounted flat against the wall of the dwelling or on the face of a fence. In other zoning districts where a home occupation is allowed, the sign may not exceed two square feet in area and may be located anywhere on the parcel. Illuminated signs are not permitted for a home occupation. The sign limit works alongside the broader home-occupation requirement that the business not change or detrimentally affect the residential, agricultural, or rural character of the neighborhood. For comparison, the County's separate, larger 'Cottage Industry' use (approved by minor use permit under Section 27.13(g)) allows a single non-illuminated or indirectly illuminated sign of up to four square feet - a useful contrast for operators whose signage needs exceed the home-occupation limits. Home occupations involving on-site visits by customers, clients, or students are additionally limited (single-family dwellings only, with hour and headcount caps), which affects how much a sign may realistically draw foot traffic.