Home Business Rules in Boulder, CO (2026)

In Boulder, CO, home-based businesses are permitted subject to specific rules designed to preserve residential character while allowing residents to run legitimate businesses from their homes. A Boulder Business License (Home Occupation) is required before operating. The Boulder Planning and Development Services — Building Safety Division or Boulder Planning and Development Services — Planning Division handles home occupation applications and enforcement. Regulations generally prohibit on-site employees, customer visits, and any external evidence of business activity. Below you will find the current permit requirements, restrictions, prohibited business types, and cottage food law provisions for Boulder.

Permit Requirements

Permit Required: Boulder Business License (Home Occupation). Fee: $100. Apply through the Boulder Planning and Development Services — Building Safety Division or online at their permit portal. Phone: (303) 441-3200. Permits typically must be renewed annually. Operating without a required home occupation permit can result in fines and a requirement to cease business activity immediately.

Operating Restrictions

Home Business Restrictions in Boulder: 1. Business must be clearly incidental to residential use 2. No clients or customers visiting unless appointment-based and no more than 4 per day 3. No more than 1 non-resident employee 4. No exterior evidence of business from public right-of-way 5. Maximum 25% of floor area for home occupation 6. No commercial vehicles over 10,000 lbs 7. No detectable noise, vibration, or odors beyond property boundary Violations of home occupation rules can result in complaints from neighbors, code enforcement investigations, permit revocation, and daily fines.

• •Business must be clearly incidental to residential use
• •No clients or customers visiting unless appointment-based and no more than 4 per day
• •No more than 1 non-resident employee
• •No exterior evidence of business from public right-of-way
• •Maximum 25% of floor area for home occupation
• •No commercial vehicles over 10,000 lbs
• •No detectable noise, vibration, or odors beyond property boundary

Prohibited Business Types

The following business types are specifically prohibited from operating as home businesses in Boulder: Auto repair with customers at home; Beauty salon or spa with clients visiting; Medical or veterinary office with on-site patients; Food production without Boulder/Boulder County Health Department registration; Any business incompatible with residential neighborhood character. This list may not be exhaustive — contact the Boulder Planning and Development Services — Planning Division to verify whether your specific business type is allowed under home occupation rules.

• ✕Auto repair with customers at home
• ✕Beauty salon or spa with clients visiting
• ✕Medical or veterinary office with on-site patients
• ✕Food production without Boulder/Boulder County Health Department registration
• ✕Any business incompatible with residential neighborhood character

Cottage Food Law

Frequently Asked Questions