Data Centers & Crypto Mining in Hayward, CA (2026)
2 verified data centers & crypto mining rules for Hayward, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Data Center Zoning & Siting
The City of Hayward regulates data centers directly. An April 2026 code amendment created a specific data-center use category and requires every new data center to obtain a Major Conditional Use Permit, approved by the City Council at a public hearing, with CEQA review.
Hayward Data Center Zoning and Siting
Significant RestrictionsCity of Hayward, Data Center Development Applications (April 2026 Municipal Code amendment; HMC Ch. 10 Zoning Ordinance)
the Hayward City Council amended the Hayward Municipal Code in April of 2026 to create a specific data center category and require that any new data center application be subject to Major Conditional Use Permit approval, which requires a public hearing with the City Council.
Data Center Noise Limits
The City of Hayward caps noise at the property plane at 70 dB(A) daytime (7 a.m.-9 p.m.) and 60 dB(A) at night (9 p.m.-7 a.m.) on residential property, and 70 dB(A) any time on industrial property. Municipal Code Section 4-1.03.1 governs a data center's cooling and generators.
Hayward Data Center Noise Limits
Some RestrictionsHayward, CA, Municipal Code Sec. 4-1.03.1 (Noise Restriction by Decibel), Residential Property Noise Limits
No person shall produce or allow to be produced ... on residential property, a noise level at any point outside of the property plane that exceeds seventy (70) dBA between the hours of 7:00 a.m. and 9:00 p.m. or sixty (60) dBA between the hours of 9:00 p.m. and 7:00 a.m.
Looking for Alameda County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Hayward city rules.
Data Centers & Crypto Mining in Alameda County →