Berkeley allows home occupations in all residential zones with a Home Occupation Permit. Business must be incidental to residential use; no more than one non-resident employee.
Berkeley Municipal Code Chapter 23.306 (Home Occupations) permits home-based businesses in all residential zones with a Home Occupation Permit (HOP) or registration, provided the business is clearly incidental and subordinate to the primary residential use. Standards include: operator must reside in the dwelling; no more than 25 percent of floor area (max 400 sq ft) used for business; no more than one non-resident employee on-site; no outdoor storage or display; no signage except a small 1 sq ft plaque; no retail sales from the residence except incidental to services; no equipment causing noise, vibration, smoke, odor, or EMI detectable beyond the property line. Prohibited uses include auto repair, kennels, manufacturing, medical clinics, and uses generating significant traffic. Online businesses, consulting, tutoring, home offices, and small studios are explicitly permitted. A Business License Tax Certificate is also required from the Finance Department. Cottage food operations follow separate state rules (AB 1616/1240). Apply at (510) 981-7410.
Contact your local code enforcement office for specific penalty information.
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