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Data Centers & Crypto Mining

Santa Ana's Data Centers & Crypto Mining: The Rules That Matter

By CityRuleLookup Editorial Team

Every city handles data centers & crypto mining a little differently. In Santa Ana, California, there are 2 distinct rules that residents and property owners should be aware of. Some are stricter than what neighboring cities enforce, and others are more relaxed. Here is what you need to know.

Data Center Zoning & Siting

Santa Ana names "data center uses" as a conditional use in its M1 (Light Industrial) district under Municipal Code Sec. 41-472.5(r), added by Ordinance No. NS-3038 in 2023. A Planning Commission conditional use permit and CEQA review are required, and the same rule reaches the M2 district.

Key details: Code: Sec. 41-472.5(r) (Ord. NS-3038). Districts: M1 and M2 industrial. Approval: Planning Commission CUP. Siting Finding: 500 ft arterial / 1,000 ft freeway. Max Height: 35 feet (M1).

Building or operating a data center without the required Planning Commission conditional use permit is a zoning violation, subject to stop-work orders and code enforcement action by the Santa Ana Planning and Building Agency.

Compared to other cities, Santa Ana takes a harder line on data center zoning & siting. The enforcement and penalty structure reflects that.

Data Center Noise Limits

Santa Ana has no data-center-specific noise rule, but Municipal Code Sec. 18-312 caps exterior noise reaching any residential property at 55 dB(A) daytime (7 a.m.–10 p.m.) and 50 dB(A) at night (10 p.m.–7 a.m.). A data center's cooling equipment and generators must meet these limits.

Key details: Code: Sec. 18-312 (Noise Zone 1). Day Limit: 55 dB(A) at residence (7am-10pm). Night Limit: 50 dB(A) at residence (10pm-7am). Pure-Tone/Impact: Limits drop 5 dB(A). Coverage: Entire city (Noise Zone 1).

Exceeding the Sec. 18-312 limits is a violation of the Municipal Code, enforced on a complaint basis and measured at the affected residential property. Each day a violation continues can be treated as a separate offense.

The Bottom Line

Santa Ana'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 Santa Ana is broadly strict or permissive.

Keep in mind that Santa Ana can amend these rules at any council meeting. For the most current version of any rule mentioned here, check the specific ordinance page, where we track updates as they happen.