6 county-level rules, plus city-specific rules for 4 cities in Sonoma County, California.
Verified from official government sources
Sonoma County Zoning Code Section 26-88-121 allows home occupations in agricultural, residential, and certain commercial zones without a zoning permit (per Ordinance No. 6363, 2021), subject to standards on floor area, employees, and customer visits in the unincorporated County.
Sonoma County Zoning Code § 26-88-121 (Home Occupations)
A home occupation may be conducted in agricultural and residential zoning districts (LIA, LEA, DA, RRD, AR, RR, R1, R2, and R3), the Planned Community zoning district (PC), and commercial zoning districts that permit residential uses (CO, C1, C2, C3, LC, RC, AS, and K). No person shall be employed in the home occupation other than residents. Customer visits and deliveries shall be limited to th...
Sonoma County Zoning Code Section 26-88-121 limits a home occupation to one attached, non-illuminated sign no larger than 2 square feet in the unincorporated County. Larger, freestanding, or illuminated business signs are not allowed for home occupations.
Sonoma County Zoning Code § 26-88-121 (Home Occupations)
A home occupation shall be limited to one (1) attached, non-illuminated, two (2) square-foot sign. The home occupation shall not require any change of the residential character or the outside appearance of the dwelling, either by the use of colors, materials, lighting, noise, or signs other than signage permitted by this section.
Home occupations in unincorporated Sonoma County may receive no more than four customers per day, two at a time, and ten deliveries or pickups per week, with customer visits limited to 8:00 a.m. to 6:00 p.m. Monday through Friday.
Sonoma County Code Sec. 26-88-121(e)
Operating Requirements. (1) Employees. No person shall be employed in the home occupation other than residents of the dwelling. (2) Hours of Operation. Customer visits and deliveries shall be limited to the hours of 8:00 a.m. to 6:00 p.m. Monday through Friday, and shall not occur on state and federal holidays. ... (4) Visits and Deliveries. Not more than four (4) customers or clients shall be ...
California's Homemade Food Act (HSC 113758) lets residents make approved non-perishable foods at home. In Sonoma County, Class A operations self-register and Class B operations get an inspected permit, both through the County Department of Health Services Environmental Health.
Cal. Health & Safety Code Sec. 114365
A 'Class A' cottage food operation shall not be open for business unless it is registered with the local enforcement agency... A 'Class B' cottage food operation shall not be open for business unless it obtains a permit from the local enforcement agency... A registration or permit from one county shall be sufficient for a cottage food operation to operate throughout the state.
California law (HSC 1597.45-1597.46, as amended by SB 234) makes small and large family daycare homes a residential use by right. Sonoma County cannot require a use permit or impose a business license, fee, or tax to operate one; the state licenses providers.
Cal. Health & Safety Code Sec. 1597.45(a)
The use of a home as a small or large family daycare home shall be considered a residential use of property and a use by right for the purposes of all local ordinances, including, but not limited to, zoning ordinances.
Since Ordinance No. 6363 (2021), unincorporated Sonoma County no longer requires a zoning permit for a qualifying home occupation under Zoning Code Section 26-88-121. Operators must instead meet by-right standards on customers, hours, deliveries, and vehicles.
4 cities in Sonoma County have their own home business rules. Each link goes to that city's dedicated page with code citations.
4 verified rules • Customer Traffic Restrictions, Home Occupation Permits
5 verified rules • Client Visits, Customer Traffic Restrictions
3 verified rules • Customer Traffic Restrictions, Signage Rules
5 verified rules • Cottage Food Operations, Customer Traffic Restrictions
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