Added as approved
STACK SVY03A Data Center Campus
STACK Infrastructure. Approved
STACK Infrastructure's SVY03A campus on Production Avenue in Hayward is a roughly 300,000 square foot data center that the Hayward Planning Commission unanimously approved in May 2025, including a taller building in exchange for a 2 million dollar public benefits package. The city separately rewrote its zoning code in early 2026 so any future data center of 50 megawatts or more needs full city council approval rather than just planning commission sign off. On October 20, 2026 the Hayward City Council voted unanimously to adopt a moratorium of up to two years on new data center proposals so staff can study the industry's economic, environmental, and public health effects, a measure driven partly by community backlash to STACK's project but which does not reopen or affect STACK's already approved and built campus.
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- Status
- Approved
- Operator
- STACK Infrastructure
- Applicant on record
- STACK Infrastructure
- Location
- 26203 Production Avenue, Hayward, CA 94545, Alameda County, CA
- Size
- MW not reported, 300,000 sq ft
- Cooling
- Not reported
- Utility
- Pacific Gas and Electric
- First reported
- 2023-11
- Last updated
- October 26, 2026
What happens next
Still to come: permits and construction. Builders do not always announce a construction start date in advance.
Sources
- Who approved Hayward's largest data center?, Tri-City Voice
- STACK SVY03A Data Center Campus, California Energy Commission
- Hayward Weighs Data Center Ban Amid 'Significant' Public Outcry, Patch
- Hayward halts new data center proposals as concerns mount over resource demands, Local News Matters, 2026-10-21
- Hayward City Council set to vote on new data center moratorium, City of Hayward
History
Other tracked projects within 25 miles
QES Computers Operator not disclosed
Equinix SV8 Equinix
Northwest Data Center and Communications Hub Operator not disclosed
Hurricane Electric Fremont Hurricane Electric
XO Fremont XO
Common questions
Where is the STACK SVY03A data center?
It is in Hayward, Alameda County, CA.
Has the STACK SVY03A data center been approved?
Yes, it has been approved.
How big is the STACK SVY03A data center?
Reported size: 300,000 square feet.
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