Unincorporated Santa Clara County does not require a standalone home occupation permit for low-impact businesses, but operators must meet zoning performance standards. Cities have their own permits.
Santa Clara County regulates home occupations through zoning performance standards rather than a separate home occupation permit in most cases. If a home business meets the standard home occupation criteria (conducted by a resident, incidental to dwelling, under 25 percent of floor area, no exterior impacts, no unusual traffic), no discretionary permit is required. Businesses that deviate from standards may need a Use Permit or Administrative Permit reviewed by the Planning Department. Operators should verify whether a county business license or tax certificate is required and whether their specific activity (food handling, childcare, professional services) needs a state license. Within incorporated cities, each municipality has its own home occupation permit process: San Jose requires a Home Occupation Permit, Palo Alto requires a Business Registry entry, and Sunnyvale requires a Home Occupation Application before operating.
Running a home business that exceeds home occupation standards without a required Use Permit can trigger stop-work orders, administrative citations, and abatement. Fines escalate with continued noncompliance.
See how Santa Clara County's home occupation permits rules stack up against other locations.
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