Mono County has no data-center ordinance. In the unincorporated county a data center is an unlisted heavy-industrial use, allowed only in the Industrial (I) or Industrial Park (IP) designations, and it needs a use permit plus CEQA review. Mammoth Lakes, the county's only town, zones itself.
This Eastern Sierra county has no data centers and no ordinance naming them. Zoning comes from the General Plan's Land Development Regulations, which govern unincorporated land only; Mammoth Lakes, the sole incorporated town, applies its own code. A server facility is treated as heavy industry and belongs in the Industrial (I) or Industrial Park (IP) designation, where uses like general manufacturing and alternative energy plants require a use permit under Chapter 32. Because a data center is not a listed use, the Planning Commission decides through a Chapter 04 similar-use determination, and the discretionary permit triggers CEQA review. Very little county land carries an I or IP designation, so a real proposal would likely need a rezone first.
Building a data center on land not designated Industrial (I) or Industrial Park (IP), or without a required use permit and CEQA clearance, is a zoning violation subject to permit denial, stop-work orders, and county code enforcement.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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California's SB 1383, effective January 1, 2022, requires organic-waste recycling statewide, including in Mono County, so residents must use a green/organics...
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Unincorporated Mono County has no ordinance banning residential artificial turf. Under California Civil Code 4735, homeowners associations cannot prohibit sy...
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Mono County's Conservation/Open Space Element strongly favors native vegetation. Landscape plans must incorporate native vegetation where feasible, non-nativ...
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Rooftop rainwater harvesting is broadly allowed. Under California's Rainwater Capture Act of 2012 (Water Code 10574), capturing rooftop rainwater needs no st...
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Mono County's General Plan commits to implementing the Water Efficient Landscape Ordinance (Action 3.C.3.a) and requires water-conservation measures as a con...
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Two regimes govern weeds in unincorporated Mono County. Fire-hazard vegetation (dry brush, weeds, grass near structures) is abated through Chapter 22 Fire Sa...
See how Mono County's data center zoning & siting rules stack up against other locations.
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