Data center campus · 4049 Massaponax Church Road and 9300 Cosner Drive, south of Spotsylvania Regional Medical Center, Massaponax, Spotsylvania, Virginia
Amazon Cosner Tech Campus
Approved
as of Oct. 30, 2025
An Amazon campus of about 1.9 million sq ft on 329 acres at Massaponax, rezoned in 2023, with a 322-acre Phase II filed later.
PowerNot statedNot reported in the records found
Floor area1,900,000sq ft
Site329acres
Who is behind it
The record, newest first
A traffic analysis in a neighboring rezoning filing listed the AWS Cosner Tech Campus as approved but not yet constructed. (Spotsylvania County (applicant narrative, File No. R25-0003), Oct. 30, 2025)
DCD reported the county had approved rezonings for Amazon's Summit Crossing, Carter's Store and Cosner campuses. (DatacenterDynamics, Oct. 30, 2023; DatacenterDynamics, undated)
Amazon filed to rezone 329 acres from mixed use to heavy industrial; phase one called for two 250,000 sq ft data centers, a substation, an office and a water treatment plant. (DatacenterDynamics, undated; Data Center Frontier, June 2, 2023)
Conflicts and open questions
- DCD (undated) reported an Army Corps (Norfolk District) filing to add 322 acres just west of Massaponax Church Road as Phase II, with five buildings totaling 1.3 million sq ft.
- PowerHouse 95, also along Cosner Drive, is a separate developer's campus.
- No vote count or exact approval date was found.
The full record
- Status note
- Described in an October 2025 county filing as approved but not yet built.
- Power note
- DCD reported that the Phase II Army Corps filing projected 450 MW of data center capacity by 2029; no county or utility record of the figure was opened.
- Evidence
- Primary public records
- Size class
- 50 MW or more (tracker scope)