Sonoma County, CA Home Business: Home Daycare (2026)

Family daycare homes in unincorporated Sonoma County are controlled primarily by California state law, which preempts local zoning. Under Health & Safety Code Section 1597.45(a), as amended by SB 234 (2019), the use of a home as a small or large family daycare home is a residential use of property and a use by right for the purposes of all local ordinances, including zoning ordinances. A small family daycare home serves eight or fewer children and a large family daycare home serves 7 to 14 children, inclusive (HSC 1596.78). Section 1597.45(b) provides that a local jurisdiction shall not impose a business license, fee, or tax for the privilege of operating a small or large family daycare home, and the County cannot require a use permit or conditional use permit. Local rules cannot directly or indirectly prohibit or restrict the use of a home as a family daycare home; permissible restrictions on building height, setbacks, and lot dimensions are allowed only if identical to those applied to all other residences with the same zoning designation. Providers must be licensed by the California Department of Social Services and must meet fire and life safety standards set by the State Fire Marshal, including a fire extinguisher or smoke detector (small homes) and, for large homes, those features plus carbon monoxide detectors (HSC 1597.455, 1597.46). Because the activity is residential by right, it is not treated as a commercial home occupation under Zoning Code Section 26-88-121.