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Colusa County · Building on your lot

Running a business from home in Colusa County

Home businesses may use at most 25% of the home's floor space, or 50% of an accessory building, and may have no employees.

Key points

  • Home businesses: Home businesses may use at most 25% of the home's floor space, or 50% of an accessory building, and may have no employees.

Each rule below links to the section of the Colusa County Municipal Code it was read from, with the code text one click away (checked October 2026). General information, not legal advice.

What Colusa County's code says

Colusa County code What Colusa County's code adds
Space used
  • The business may use 25% of the home's floor space at most.
    Applies: Applies to a business inside the home.
    § 44-4.90 · code text
    The home occupation is confined completely within a legal structure and occupies not more than twenty-five percent of the floor space of a dwelling or fifty percent of that of an accessory building.
  • The business may use 50% of the accessory building's floor space at most.
    Applies: Applies to a business inside an accessory building.
    § 44-4.90 · code text
    The home occupation is confined completely within a legal structure and occupies not more than twenty-five percent of the floor space of a dwelling or fifty percent of that of an accessory building.
  • Up to 50% of the rear yard outside the accessory-structure setbacks may be used.
    Applies: Applies to growing annual flowers and vegetables outdoors in the rear yard for sale off site.
    § 44-4.90 · code text
    the total cultivation area shall not exceed fifty percent of the rear yard area outside the accessory structure setback requirements.
Employees
  • No employees; only family members living in the home may do the work.
    § 44-4.90 · code text
    The home occupation is carried on by the members of the family occupying the dwelling with no other persons employed.
Permit
  • An administrative permit is required.
    Applies: Except businesses using only office equipment or making items indoors, with no employees, display, storage, signs or outward sign of business; these register with planning.
    § 44-4.90 · code text
    No home occupation shall be allowed unless an administrative permit has first been issued for such use as required by Article 44-1 (Administrative Provisions)
  • Registration with the planning department is enough.
    Applies: Businesses using only office equipment or making items inside the main building, with no employees, display, storage, signs or outside sign of business.
    § 44-4.90 · code text
    businesses utilizing only office equipment or producing items inside the primary structure with no employees, no display or storage, no signs, or no exterior indication of any business will be permitted upon the registration of such businesses with the planning department
Businesses not allowed
  • Strictly retail businesses, such as grocery stores and stock item stores
    § 44-4.90 · code text
    Strictly retail businesses shall not be allowed (that is, grocery stores, stock item stores, and the like).

Who this affects

HomeownersContractorsDesigners

Frequently asked questions

Can I run a business from my home in Colusa County?

Home businesses may use at most 25% of the home's floor space, or 50% of an accessory building, and may have no employees.

General information, not legal advice.

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Ask GoCodebook how Colusa County's running a business from home rules apply to your situation and get an answer that cites the section.

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