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Home Business in Boulder County, CO (2026)

3 county-level rules, plus city-specific rules for 2 cities in Boulder County, Colorado.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Boulder County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Zoning & Home Occupation Permits

The Boulder County Land Use Code lets a home occupation operate as an accessory use to a residence, provided it stays clearly subordinate to the dwelling and does not change the character of the lot. Article 4-516(S) sets the limits on employees, floor area, traffic, and signage.

Home-Based Business Zoning in Unincorporated Boulder County

Some Restrictions

Boulder County Land Use Code Article 4-516(S)

A home occupation is an accessory use consisting of a vocational activity conducted inside a dwelling unit or its accessory structures, and used only by the individuals who reside therein and one employee.

Signage Rules

A home occupation in unincorporated Boulder County may display only a small identification sign. The Land Use Code limits it to a non-illuminated sign of two square feet or less, and the business must produce no noise, light, odor, or other effect noticeable beyond the property line.

Home Occupation Sign Rules in Boulder County

Some Restrictions

Boulder County Land Use Code Article 4-516(S)

Has signage limited to a non-illuminated identification sign two square feet or less in size.

Home Daycare

A family child care home is treated as a residential use for zoning, so it is generally allowed in unincorporated Boulder County homes, and child care is specifically exempted from the home-occupation floor-area cap. The provider must still be licensed by the Colorado Department of Early Childhood.

Running a Home Daycare in Boulder County

Some Restrictions

Boulder County Land Use Code Article 4-516(S)

Does not exceed one-half the total floor area of the dwelling including activities carried out in an accessory structure, with the exception of child care which may exceed this limit.

Home Business by City in Boulder County

2 cities in Boulder County have their own home business rules. Each link goes to that city's dedicated page with code citations.

All Boulder County ordinances

See every category we cover for Boulder County: parking, noise, fences, fires, animals, pools, and more.

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