Sue Data Centers

Data Center Registry

Westbank 300 South First Street Data Center (downtown San José)

San Jose, Santa Clara County, California · All 3 Westbank sites

ProposedNo reception on recordRecord updated September 21, 2026

Westbank 300 South First Street Data Center (downtown San José) is a proposed data center in San Jose, California (Santa Clara County), operated by Westbank. The public record puts it at announced October 2024, 2.84 acres.

Every line on this page traces to a public source listed at the bottom. Where a figure was looked for and not found, the row says so. A blank is never a zero.

Facility record

Proposed

Operator
Westbank
Facility type
Data center
Location
300 South First Street, San Jose, Santa Clara County, CA, 95113
Coordinates
37.3315, -121.8866 (approximate)
Power capacity
Not established from a public source
Land
2.84 acres
Investment
Not established from a public source
Announced
October 2024
Utility
Not established from a public source
Cooling
Not established from a public source
Water use
Not established from a public source
Jobs
Not established from a public source
Public subsidy
Not established from a public source
Community reception
No reception on record
Source confidence
Confirmed by multiple independent sources or official documentation

Timeline from the record

Newest first. Record entries come from the filings and reports the registry cites. Coverage entries are headlines from publisher feeds we monitor daily, linked to the outlet; last checked September 14, 2026.

  1. October 17, 2024
    Proposed
    Planned Development Permit PD25-013 submitted 2024-10-17: a seven-story (two below-grade levels), 200-ft, ~238,000 sq ft data center alongside three 30-story mixed-use towers (1,164 units) on a 2.84-acre site; environmental review under way. San José City Council voted 2025-04-08 to advance Westbank's downtown proposals through the Innovative Project Pathway. Source: City of San José Planning Division

Opposition and litigation at this site

Nothing on record as of September 21, 2026. No lawsuit, organized opposition, or contested hearing over Westbank 300 South First Street Data Center (downtown San José) in San Jose, Santa Clara County, California appears in the sources this registry tracks. That is an absence in our sources rather than a finding that none exists, and local opposition often predates any coverage a national dataset would pick up.

If you live near this site and something is happening that this page does not show, that is worth telling us. Send us the document and it goes in the record with the source attached. For sites where opposition is already established, see every contested site we track.

A new status, a permit, a reception finding, or a lawsuit. Nothing else, ever.

Notes on the record

Part of Westbank's downtown San José program pairing data centers with housing; San José Spotlight reports the two downtown sites (300 S. First and 323 Terraine) total 99 MW combined, not attributed to this site alone.

What the record does not establish, and the document that would

In every fight on our tracker the decisive fact came out of a public records request. These are the requests for this site.

  • Power capacity in megawatts
  • Cooling method and water use
  • Tax abatements or other public subsidy
  • Permanent jobs promised
  • How the community has received it
  • Which utility serves it
Which document closes each gap
Power capacity in megawatts
The utility's large load service agreement, the interconnection request in the grid operator's queue, or the electrical site plan in the permit file.
Cooling method and water use
The water service agreement, any groundwater appropriation permit, and the mechanical narrative in the site plan.
Tax abatements or other public subsidy
The abatement, PILOT, or development agreement approved by the county, city, or development authority, and the state's data center sales tax exemption certificate if one was issued.
Permanent jobs promised
The economic development application or incentive agreement, which usually states a job commitment and a clawback.
How the community has received it
Planning commission and governing body minutes, public comment records, and any petition or lawsuit filed in the county.
Which utility serves it
The electric service agreement or the utility's filing with the state public utility commission.

Have one of these documents? Send it to us and we will add it to the record with attribution.

Other sites within 30 miles

Distances are between recorded coordinates, many of which are a city or county centroid, so treat them as approximate. Cumulative load on one utility and one aquifer is the question a planning commission rarely asks.

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Questions people ask about this site

Is there opposition to the Westbank 300 South First Street Data Center (downtown San José) in San Jose?

Nothing on record as of September 21, 2026. No lawsuit, organized opposition, or contested hearing over Westbank 300 South First Street Data Center (downtown San José) in San Jose, Santa Clara County, California appears in the sources this registry tracks. That is an absence in our sources rather than a finding that none exists, and local opposition often predates any coverage a national dataset would pick up.

Has anyone filed a lawsuit over the Westbank 300 South First Street Data Center (downtown San José)?

No lawsuit over Westbank 300 South First Street Data Center (downtown San José) appears in the record we track as of September 21, 2026. Residents most often reach a lawyer over water supply, well drawdown, noise from cooling plant, property value, or a rezoning approved without the notice the ordinance required. If any of that is happening near this site, it is worth a review whether or not a case has been filed yet.

How much water does Westbank 300 South First Street Data Center (downtown San José) use?

No water withdrawal figure for Westbank 300 South First Street Data Center (downtown San José) is on record here. Water use is rarely published voluntarily; it usually surfaces through a utility service agreement or a state withdrawal permit, both of which are public records. We leave the number blank rather than estimate one.

Who operates Westbank 300 South First Street Data Center (downtown San José), and how big is it?

Westbank is the operator on record. We hold 3 sites for that company across the registry. No capacity figure is on record for this site. The site is recorded at 2.84 acres.

How to cite this page

SueDataCenters.org Data Center Registry, "Westbank 300 South First Street Data Center (downtown San José)," updated September 21, 2026, https://suedatacenters.org/data-centers/westbank-300-south-first-street-san-jose-ca.

Facility data from Compute Atlas (E. Kubiak), version 1.34.0 (September 21, 2026), licensed CC BY 4.0, record https://www.compute-atlas.com/facilities/westbank-300-south-first-street-san-jose-ca, retrieved October 1, 2026.

Corrections with a public source are welcome at the Compute Atlas record or through our contact page. The whole registry is available as CSV and JSON under CC BY 4.0.

Sources for this record

As compiled and cited by Compute Atlas, with our own reporting appended. Archived links are used where the original has moved.

  1. 1.City of San José, Data Center and other Large Energy-Use Projects (application list updated 2026-07-13; Wayback capture 2026-08-13) · City of San José Planning Division · retrieved September 21, 2026
  2. 2.San José weighs data center benefits as residents raise environmental concerns (2026-08-13) · KQED · retrieved September 21, 2026
  3. 3.Data center, hundreds of homes coming to downtown San Jose (2025-04-16) · San José Spotlight · retrieved September 21, 2026

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