Glenn County, CA Home Business: Zoning Restrictions (2026)

Home occupations in unincorporated Glenn County are governed by Title 15 (Unified Development Code), Division 5 (Special Use Standards), Chapter 15.780 'Home Occupation.' The County Code defines 'home, occupation' as 'any use customarily conducted entirely within a dwelling and carried on by the inhabitants thereof, which use is clearly incidental and secondary to the use of structure for dwelling purposes and which use does not change the character thereof or does not adversely affect the uses permitted in the same zone of which it is part.' Across the County's residential and agricultural zones, home occupations are listed as a permitted use 'if a permit is secured pursuant to Chapter 15.780.' The zoning code distinguishes by parcel size and location: a home occupation not conducted within the residential dwelling on parcels smaller than 10 acres requires a conditional use permit, while a home occupation not in the residential dwelling on parcels of at least 10 acres may be allowed differently. The use must remain incidental and secondary to the residence and must comply with all fire, building, plumbing, electrical and health codes and all federal, state and County laws. Because the County uses zone-by-zone permitted-use tables, owners should confirm their parcel's zoning (e.g., AE Exclusive Agricultural, or a residential zone) and the applicable conditions with the Planning Division before starting a business at home.