Folsom, CA Home Business: Signage Rules (2026)

A defining rule of Folsom's Home Occupation Permit program is preservation of residential character. The municipal code prohibits any exterior evidence of commercial activity, specifically including signage. No commercial signs of any kind — including business name plaques, logos, advertising banners, A-frames, window decals visible from the street, or illuminated displays — are permitted on the exterior of a home-based business property. Vehicle-mounted signage on a personal work vehicle parked in the driveway falls into a gray area; one work vehicle with lettering, under 1 ton, is typically allowed. Address identification (house numbers) is required by fire code and is not considered commercial signage. Home-based businesses may use online advertising, business cards, and remote marketing freely — the restriction is only on physical signs at the residence. Real estate for-sale/lease signs, political signs, and similar non-commercial signage are governed by separate sign ordinance sections and are generally permitted per Reed v. Town of Gilbert content-neutral standards. Historic District homes have additional exterior signage review even for permitted commercial properties.