How Fresno Handles Data Centers & Crypto Mining: A Practical Guide
Fresno maintains 184 local ordinances across all categories, and 2 of those deal specifically with data centers & crypto mining. Here is a breakdown of what the city actually requires, what is prohibited, and where Fresno falls on the strict-to-permissive spectrum compared to other cities.
Data Center Noise Limits
The City of Fresno's own Noise Ordinance (Municipal Code Chapter 10, Article 1) sets sound levels by district: 60 dBA daytime, 55 evening, and 50 dBA overnight in residential areas, and 70 dBA anytime in industrial areas. Data-center cooling and generators must comply.
Key details: Code: Muni Code Ch. 10, Art. 1. Residential limit: 60/55/50 dBA residential. Industrial limit: 70 dBA anytime. Violation trigger: +5 dBA over ambient. Measured at: Property line.
Noise exceeding the designated level at a neighbor's property line by more than five decibels is a Municipal Code violation, enforced by the City through citations, fines, and injunctive relief.
Data Center Zoning & Siting
The City of Fresno has no data-center ordinance and no "data center" use category. Data centers site in the IL Light Industrial and IH Heavy Industrial districts, permitted by right as a Communication Facility or industrial use under Development Code Table 15-1302.
Key details: Dedicated ordinance: None. Districts: IL, IH industrial. Permit level: By-right (P). Use classification: Communication facility / industrial. Code: Development Code Table 15-1302.
Building or operating a data center outside an industrial district, or without a required permit, violates the Citywide Development Code and is enforced by Planning and Code Enforcement through stop-work orders and abatement.
Fresno is more permissive than most cities when it comes to data center zoning & siting. That said, there are still limits.
The Bottom Line
Fresno's data centers & crypto mining rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Fresno is broadly strict or permissive.
These rules come from Fresno's publicly available municipal code. For complete penalty schedules, exemption details, and answers to common questions, see the individual ordinance pages throughout this guide.