In unincorporated Orange County, data centers are not a listed use in the M1 "Light Industrial" district, so they can proceed only with a discretionary Use Permit approved by the Planning Commission. Most county land is incorporated, so eligible unincorporated sites are scarce.
The County's Comprehensive Zoning Code Table 7-9-34.2 governs the M1 "Light Industrial" (Employment) District, the only base district where a server farm would fit. Data centers are not named as a permitted use, so they fall under the table's catch-all: all other uses are prohibited unless a Use Permit by the Planning Commission is obtained, with a required finding that the use is consistent with the district's purpose and intent. A Use Permit is discretionary and triggers CEQA review. M1 buildings max out at 35 feet and must sit 30 feet from any abutting residential, agricultural, or estate district (Sec. 7-9-34.3). Most of Orange County is incorporated into 34 cities with their own zoning, so unincorporated M1 land is limited.
Building or operating a data center on unincorporated M1 land without the required Planning Commission Use Permit is a zoning violation, subject to stop-work orders and enforcement by OC Development Services. Incorporated cities regulate their own land separately.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Fullerton, CA
Fullerton regulates leaf blower noise through its general noise standards in FMC Chapter 15.90. Leaf blowers must comply with the 55 dB residential property-...
Fullerton, CA
Per FMC § 15.90.050(A), construction, repair, remodeling, and grading are exempt from decibel limits only between 7:00 a.m. and 8:00 p.m. on any day except S...
Fullerton, CA
Aircraft noise is federally preempted, but Fullerton Municipal Airport (KFUL) publishes voluntary noise-abatement procedures: Runway 06 is the preferred take...
Fullerton, CA
Fullerton has no separate amplified-sound ordinance; live or recorded amplified music is held to the same FMC § 15.90.030 decibel limits as any other source....
Fullerton, CA
Fullerton contracts with OC Animal Care to enforce Orange County's barking-dog ordinance: a dog barking incessantly for 30 minutes or barking intermittently ...
Fullerton, CA
Fullerton follows California requirements for EV charging infrastructure. The city streamlines permits for residential Level 2 charger installations and new ...
Side-by-side rule comparisons with other cities in Orange County.
See how other cities in Orange County handle data center zoning & siting.
See how Fullerton'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.