Unincorporated Los Angeles County has no data-center-specific zoning. Title 22 does not define or regulate data centers, so they are reviewed as an industrial use permitted in the County's manufacturing (M) zones, subject to CEQA. A County study of new rules is underway.
Los Angeles County's Title 22 planning and zoning code contains no data-center use classification or standards. Absent a definition, a data center is treated as an industrial use and is generally allowed in the County's manufacturing zones — M-1 (Light), M-1.5, M-2 (Heavy), M-2.5, M-3, and MPD — that steer heavy uses away from homes. Discretionary entitlements trigger California Environmental Quality Act (CEQA) review. On April 14, 2026, the Board of Supervisors adopted Supervisor Solis's motion directing Regional Planning and Public Health to study data-center impacts and recommend code amendments within 120 days. County zoning governs only unincorporated land; the City of Los Angeles and other cities set their own rules.
Building a data center outside an appropriately zoned industrial area, or without required site-plan and CEQA approvals, blocks permits and draws County zoning enforcement, including stop-work orders until the parcel conforms.
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