Unincorporated Napa County has no dedicated data-center ordinance. Data centers are not a listed use in any zoning district, and nearly all county land is Agricultural Preserve or Agricultural Watershed, where industrial uses are prohibited outright.
Napa County's Zoning Code (Title 18) protects farmland first: most unincorporated land is zoned AP Agricultural Preserve or AW Agricultural Watershed (Chapters 18.16 and 18.20), where industrial and data-processing uses are not permitted. Industrial development is confined to IP Industrial Park (Chapter 18.40) and GI General Industrial (Chapter 18.44) areas, concentrated at the Napa County Airport Industrial Area. A data center is not a listed use in any district, so a project could proceed only if the approving body found it a non-nuisance use similar in character to permitted industry — requiring a use permit and CEQA review. These rules govern only unincorporated land; Napa, American Canyon, Calistoga, St. Helena, and Yountville set their own zoning.
Building or operating a data center without the required use permit, or siting one on Agricultural Preserve or Agricultural Watershed land, violates the Zoning Code. The county can deny applications, withhold building permits, and pursue code enforcement.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Napa, CA
Pool barriers in Napa follow California Health and Safety Code Sections 115921-115929 (the Swimming Pool Safety Act, as amended Jan 1, 2018) and California B...
Napa, CA
Napa Municipal Code 17.52.170 governs fence height and visibility but does not impose a closed list of allowed residential fence materials. Wood, vinyl, orna...
Napa, CA
Napa's Municipal Code does not require neighbor consent to build a fence. Boundary fence cost-sharing follows California Civil Code Section 841 — the Good Ne...
Napa, CA
Fences 6 feet or less in Napa generally do not need a building permit, but any fence over 6 feet in height must obtain a building permit under the California...
Napa, CA
City of Napa Municipal Code Section 17.52.170 regulates fences, walls, and hedges. Fences in residential side and rear yards are typically allowed up to 6 fe...
Napa, CA
The City of Napa caps household keeping at six (6) small domestic animals over four months of age under the Zoning Ordinance definition in Napa Municipal Cod...
See how Napa's data center zoning & siting rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.