Data Center Registry

Former IBM Almaden Research Center Data Center Campus (650 Harry Road)

San Jose, Santa Clara County, California

ProposedNo reception on recordRecord updated October 19, 2026

Former IBM Almaden Research Center Data Center Campus (650 Harry Road) is a proposed data center in San Jose, California (Santa Clara County), operated by Blackstart Digital. The public record puts it at announced October 6, 2026, 35 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: Blackstart Digital
Facility type: Data center
Location: 650 Harry Road, San Jose, Santa Clara County, CA, 95120
Coordinates: 37.2113, -121.8083 (approximate)
Power capacity: Not established from a public source
Land: 35 acres
Investment: Not established from a public source
Announced: October 6, 2026
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: Reported by at least one credible outlet or filing

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.

October 6, 2026
Proposed
Blackstart Digital agreed to acquire the former IBM Almaden Research Center; close expected by end of 2026; environmental review requested for renovations Source: Baxtel

Opposition and litigation at this site

Nothing on record as of October 19, 2026. No lawsuit, organized opposition, or contested hearing over Former IBM Almaden Research Center Data Center Campus (650 Harry Road) 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.

Notes on the record

The 35-acre developed area holds seven buildings of more than 500,000 sq ft. It sits within a 687-acre property, and the roughly 565 acres of open space would stay undeveloped. The site already has some data center capacity and is served by a 25 MW substation that Blackstart plans to expand. San José rezoned the campus to an industrial park district in August 2026. The deal is pending and expected to close by end of 2026; both articles relay Mercury News reporting.

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.

Equinix Great Oaks South Data Center (SV12, SV18, SV19) · San Jose · Equinix2 mi · Permitted
Equinix SV1 · San Jose · Equinix3 mi · Operating
5601 Great Oaks Parkway Data Center (Menlo Equities, Charlotte Drive) · San Jose · Menlo Equities3 mi · Proposed · 100 MW
Prologis Silver Creek Valley Road Data Center · San Jose · Prologis3 mi · Proposed · 99 MW
Prologis 5853 Rue Ferrari · San Jose · Prologis3 mi · Permitted · 49 MW · Supported
865 Embedded Way Data Center (Oppidan / Rockpoint) · San Jose · Oppidan (with Rockpoint Group)4 mi · Proposed · 18 MW
Westbank 300 South First Street Data Center (downtown San José) · San Jose · Westbank9 mi · Proposed
Westbank 180 Park Avenue Data Center (Park Habitat site, downtown San José) · San Jose · Westbank / Urban Community9 mi · Proposed

Tell us about your situation

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Questions people ask about this site

Is there opposition to the Former IBM Almaden Research Center Data Center Campus (650 Harry Road) in San Jose?

Has anyone filed a lawsuit over the Former IBM Almaden Research Center Data Center Campus (650 Harry Road)?

No lawsuit over Former IBM Almaden Research Center Data Center Campus (650 Harry Road) appears in the record we track as of October 19, 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 Former IBM Almaden Research Center Data Center Campus (650 Harry Road) use?

No water withdrawal figure for Former IBM Almaden Research Center Data Center Campus (650 Harry Road) 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 Former IBM Almaden Research Center Data Center Campus (650 Harry Road), and how big is it?

Blackstart Digital is the operator on record. No capacity figure is on record for this site. The site is recorded at 35 acres.

How to cite this page

SueDataCenters.org Data Center Registry, "Former IBM Almaden Research Center Data Center Campus (650 Harry Road)," updated October 19, 2026, https://suedatacenters.org/data-centers/blackstart-digital-650-harry-road-san-jose-ca.

Facility data from Compute Atlas (E. Kubiak), version 1.34.1 (October 4, 2026), licensed CC BY 4.0, record https://www.compute-atlas.com/facilities/blackstart-digital-650-harry-road-san-jose-ca, retrieved October 29, 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.Data center firm set to acquire former IBM research campus in Silicon Valley · Baxtel · retrieved October 19, 2026
2.Former IBM research campus in Silicon Valley set to be acquired by data center firm · Infor Capital · retrieved October 19, 2026

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