Home Business in Mendocino County, CA (2026)
4 rules for unincorporated Mendocino County, California.
Verified from official government sources
Zoning & Home Occupation Permits
Running a business from home in unincorporated Mendocino County does not require a use permit, but Sec. 20.156.005 still treats it as an accessory use that must stay clearly secondary to the residence and cannot change the property's residential or rural character. Off-street parking, building permits, and business licenses still apply.
Mendocino County Home Occupation Zoning Rules
Light RestrictionsMendocino County Code §§ 20.156.005, 20.156.010
It is the intent of this Chapter to provide for the accessory use of a dwelling or accessory building(s) on the same parcel as the dwelling for gainful employment involving the manufacture, provision, or sale of goods and/or services. The use must be clearly incidental and secondary to the use of the premises for residential purposes and must not change or adversely affect the residential or ru...
Signage Rules
A home occupation in unincorporated Mendocino County can display exactly one sign, and it must be nonilluminated and no larger than two square feet. Sec. 20.156.015(C) treats any bigger or lit sign, or any other visible change to the property, as a code violation.
Mendocino County Home Business Sign Limits
Some RestrictionsMendocino County Code § 20.156.015(C)
(C)The home occupation shall not result in any change in the outside appearance of the building or premises, or other visible evidence of the conduct of such occupation, other than one (1) nonilluminated sign not exceeding two (2) square feet.
Customer Traffic Restrictions
A home occupation in unincorporated Mendocino County can host no more than 10 customers or clients a day, and only between 8 a.m. and 8 p.m. No more than three delivery vehicles may reach the property daily, and heavy commercial vehicles cannot be used at all to deliver materials for the business.
Mendocino County Home Business Customer Limits
Some RestrictionsMendocino County Code § 20.156.015(E), (F)
(E)Not more than ten (10) customers or clients shall come to the premises during any one (1) day, restricted to the hours 8:00 a.m. to 8:00 p.m. Not more than three (3) delivery vehicles shall access the premises each day.(F)Heavy commercial vehicles shall not be used in the home occupation for delivery of materials to or from the premises.
Home Daycare
Mendocino County treats a small family daycare home exactly like any other residential use in the same zone, per state Health and Safety Code section 1597.45, so no special permit is required wherever a house is already allowed. A large family daycare home, however, needs an Administrative Permit in any zoning district that permits Family Residential use types.
Mendocino County Family Daycare Home Zoning
Light RestrictionsMendocino County Code § 20.016.020 (Day Care Facility)
The use of a dwelling unit as a "small family daycare home" or "large family daycare home" as defined in California Health and Safety Code section 1596.78. "Small family daycare home" or "large family daycare home" includes a detached single-family dwelling, a townhouse, a dwelling unit within a dwelling, or a dwelling unit within a covered multifamily dwelling in which the underlying zoning al...
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