# Amazon IAD-156/157/158/159 Data Center

PJM data center · https://askthegrid.com/assets/facilities/amazon-iad-156-157-158-159-data-center

Amazon Data Services' IAD-156 data center at 43920 Lone Cedar Lane, Chantilly, sits on an 82.17-acre Amazon parcel in Loudoun County that also holds IAD-157 and IAD-158 on Meadowdale Drive. The county assesses Building A there as a two-story, 259,420 sq ft data center built in 2023, and in May 2026 issued a shell construction permit for IAD-159. Virginia DEQ permit 74250 covers IAD-156 to IAD-159 and IAD-327, including 26 Caterpillar 3516C-HD emergency gen-sets and 104 non-emergency diesel gen-sets fitted with SCR.

## Identity and location

- Operating status: expanding
- Asset scope: facility
- Location: 43920 Lone Cedar Lane, Chantilly, Loudoun County, VA

## Development

- Construction: Amazon's parcel holds Building A, a two-story 259,420 sq ft data center built in 2023. In May 2026 Loudoun County issued a new data center shell construction permit for IAD-159 on the same parcel.

## Compute and operations

- Facility classes: hyperscale, cloud

## Sources

- [https://deq.zh-cn.virginia.gov/home/showpublisheddocument/25994/638864455362300000](https://deq.zh-cn.virginia.gov/home/showpublisheddocument/25994/638864455362300000)
- [https://logis.loudoun.gov/gis/rest/services/COL/LandRecords/MapServer/2/query?where=AD_ADDRESS%3D43920+AND+AM_STR_NAME%3D%27LONE+CEDAR%27&outFields=AD_MCPI,FULL_ADDRESS&returnGeometry=false&f=pjson](https://logis.loudoun.gov/gis/rest/services/COL/LandRecords/MapServer/2/query?where=AD_ADDRESS%3D43920+AND+AM_STR_NAME%3D%27LONE+CEDAR%27&outFields=AD_MCPI,FULL_ADDRESS&returnGeometry=false&f=pjson)
- [Loudoun County](https://reparcelasmt.loudoun.gov/pt/datalets/datalet.aspx?mode=commercial&UseSearch=no&pin=096183926000)
- [U.S. Department of Transportation address point](https://services.arcgis.com/xOi1kZaI0eWDREZv/ArcGIS/rest/services/Address_Points_from_National_Address_Database_view/FeatureServer/0/query?f=json&where=Add_Number%3D43920&geometry=-77.5158007%2C38.8913052%2C-77.4558007%2C38.9513052&geometryType=esriGeometryEnvelope&inSR=4326&spatialRel=esriSpatialRelIntersects&outSR=4326&outFields=%2A&returnGeometry=true&resultRecordCount=2000) — U.S. Department of Transportation
- [Issued Air Permits for Data Centers | Virginia DEQ](https://web.archive.org/web/20261002062942/https://www.deq.virginia.gov/permits/air/issued-air-permits-for-data-centers)
- [https://www.loudoun.gov/DocumentCenter/View/221246/Building-Permits-Issued-May-1-31-2026](https://www.loudoun.gov/DocumentCenter/View/221246/Building-Permits-Issued-May-1-31-2026)

## Data quality

- Power values retain their reported, requested, contracted, energized, gross-campus, or critical-IT basis.
- Map point: government rooftop address point.

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Canonical page: https://askthegrid.com/assets/facilities/amazon-iad-156-157-158-159-data-center
Profile generated: 2026-10-09T04:03:13.152475Z
Source: Ask the Grid — https://askthegrid.com/