Daly City, CA Data Centers & Crypto Mining: Data Center Noise Limits (2026)
Key Facts
- Code
- Muni Code Ch. 9.22
- dBA limit in code
- None
- Quiet hours
- 10 p.m. to 6 a.m.
- Standard
- Audible beyond property line
- General Plan target
- 70 dBA Leq residential
Summary
Daly City's Municipal Code sets no decibel limit for a data center. Chapter 9.22 bars noise heard beyond your property line between ten p.m. and six a.m. The numeric targets sit in the 2030 General Plan Noise Element instead.
Between the hours of ten p.m. and six a.m. of the following day, no person shall cause, create or permit any noise, music, sound or other disturbance upon his property which may be heard by, or which noise disturbs or harasses, any other person beyond the confines of the property ...
Full Breakdown
Chapter 9.22 of the Daly City Municipal Code is qualitative. Section 9.22.010 bars any noise, disorder, or tumult disturbing the public peace. Section 9.22.030 bars noise between ten p.m. and six a.m. that is heard beyond the property from which it emanates. No dBA table exists in the code. The 2030 General Plan Noise Element supplies the numbers the City applies in project review: Task NE-6.2 maintains 70 dBA Leq in residential areas, and Policy NE-5 maintains 75 dBA CNEL for office, commercial, and professional areas. Cooling and generator noise from a data center is conditioned through its Use Permit.
Violations & Fines
Noise heard beyond the property line between ten p.m. and six a.m. violates Section 9.22.030 and is enforced by police. A permitted data center also breaches its Use Permit conditions.
Frequently Asked Questions
How loud can a data center be in Daly City?
Who do I ask for a real decibel limit in Daly City?
Sources & Official References
Other rules in Daly City
California rules heatmap·Compare Daly City to another location·View the California data centers & crypto mining overview
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Data Center Noise Limits in Nearby Cities
How other cities in San Mateo County handle data center noise limits.