Folsom, CA Data Centers & Crypto Mining: Data Center Zoning & Siting (2026)
Key Facts
- Dedicated ordinance
- None
- Zones
- M-1, M-2, M-L industrial
- By-right
- Manufacturing / assembly use
- Use permit
- C-3-classed uses
- Discretionary review
- CEQA + hearing
Summary
The City of Folsom has no data-center use category and no dedicated ordinance. Data centers locate in the M-1, M-2, and M-L industrial districts, permitted by right as assembly or manufacturing inside an enclosed building, or by Planning Commission use permit if classed as a C-3 use.
The following uses of land and buildings, which shall be permitted only in M-1 and M-2 districts: Assembly and storage of goods, materials, liquids and equipment (except storage of flammable or explosive matter or materials which create dust, odors or fumes).
Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance 1369, passed April 28, 2026).
Full Breakdown
Folsom's Zoning Code, Municipal Code Title 17, does not name "data center" as a use. A server or computing building is classified into the nearest industrial category and sited in the M-1 Light Industrial (Ch. 17.28), M-2 General Industrial (Ch. 17.30), or M-L Limited Manufacturing (Ch. 17.32) district. As "assembly - light manufacturing" or manufacturing by electric power inside an enclosed building, it is permitted by right, needing only a ministerial building permit. A use classified under the C-3 heavy-commercial list instead needs a Planning Commission use permit under Chapter 17.60, a discretionary approval triggering CEQA review and a public hearing. Folsom has adopted no data-center moratorium or study.
Violations & Fines
Building or operating a data center outside an industrial district, or without the Planning Commission use permit when the use requires one, is a zoning violation enforced by Community Development through stop-work orders, penalties, and abatement.
Frequently Asked Questions
Where can data centers be built in the City of Folsom?
Does the City of Folsom require a special permit for a data center?
Has the City of Folsom adopted a data-center ordinance or moratorium?
Sources & Official References
Other rules in Folsom
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