Data Center Registry

Microsoft Annapolis Junction Data Center Campus

Annapolis Junction, Anne Arundel County, Maryland · All 54 Microsoft sites · Every Microsoft case on our tracker

Under constructionNo reception on recordRecord updated October 22, 2026

Microsoft Annapolis Junction Data Center Campus is a data center under construction in Annapolis Junction, Maryland (Anne Arundel County), operated by Microsoft.

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

Under construction

Operator: Microsoft
Facility type: Data center
Location: Annapolis Junction, Anne Arundel County, MD
Coordinates: 39.1239, -76.7919 (approximate)
Power capacity: Not established from a public source
Land: Not established from a public source
Investment: Not established from a public source
Announced: Not established from a public source
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.

September 22, 2026
Under construction
Microsoft told the Anne Arundel County Council it started building the campus in the Annapolis Junction Business Park in 2020 and has remaining phases to develop. The amended moratorium (Bill 63-26) allows future phases of existing data centers to continue. Source: The Baltimore Banner

Opposition and litigation at this site

Nothing on record as of October 22, 2026. No lawsuit, organized opposition, or contested hearing over Microsoft Annapolis Junction Data Center Campus in Annapolis Junction, Anne Arundel County, Maryland 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

Microsoft bought the Annapolis Junction Business Park site in 2020. Microsoft's director of government affairs described 'remaining phases of this project', and the Banner says the campus has generated millions in county tax dollars. An aggregator lists 8201, 8211, 8221 and 8321 Dorsey Run Road; that is not verified from a primary source. The pin is the Annapolis Junction place point (approximate). Some buildings may already be operating; the status reflects ongoing phased construction.

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
Land area
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.
Land area: The rezoning application, the plat, or the deed recorded with the county.
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.

Our reporting on this site

Can You Get a Court to Stop a Data Center? What an Injunction Actually Requires · Guide

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.

Sandy Farms Data Center (Severn) · Severn · GI Partners (owner; single unnamed tenant)5 mi · Operating
TPC Konterra 1 Data Center · Laurel · TPC Data Centers (TPC DC Mid-Atlantic LLC)6 mi · Proposed · 12 MW
TierPoint Baltimore - BWI · Linthicum Heights · TierPoint9 mi · Operating
AiNET Beltsville WDC-1 · Beltsville · AiNET9 mi · Operating
AiNET CyberNAP · Glen Burnie · AiNET10 mi · Operating · 80 MW
12401 Prosperity Drive Data Center · Silver Spring · Sansone Group / Priseda10 mi · Operating · 35.2 MW
1500 Woodlawn Drive Data Center Campus · Woodlawn · Security Land and Development LP14 mi · Proposed · 150 MW · Contested
TierPoint Baltimore (Russell Street) · Baltimore · TierPoint14 mi · Operating

Tell us about your situation

Living near Microsoft Annapolis Junction Data Center Campus?

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Questions people ask about this site

Is there opposition to the Microsoft Annapolis Junction Data Center Campus in Annapolis Junction?

Has anyone filed a lawsuit over the Microsoft Annapolis Junction Data Center Campus?

No lawsuit over Microsoft Annapolis Junction Data Center Campus appears in the record we track as of October 22, 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 Microsoft Annapolis Junction Data Center Campus use?

No water withdrawal figure for Microsoft Annapolis Junction Data Center Campus 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 Microsoft Annapolis Junction Data Center Campus, and how big is it?

Microsoft is the operator on record. We hold 54 sites for that company across the registry. No capacity figure is on record for this site.

How to cite this page

SueDataCenters.org Data Center Registry, "Microsoft Annapolis Junction Data Center Campus," updated October 22, 2026, https://suedatacenters.org/data-centers/microsoft-annapolis-junction-campus-md.

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/microsoft-annapolis-junction-campus-md, 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.Anne Arundel County opts for 15-month data center moratorium over outright ban · The Baltimore Banner · retrieved October 22, 2026
2.Maryland County Downgrades Potential Data Center Ban to Pause · GovTech (Capital Gazette / Tribune Content Agency) · retrieved October 22, 2026
3.Maryland Data Centers: 26 Sites Tracked (2026) · Kadoa · retrieved October 22, 2026

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