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Data center campus · 14684 Industrial Parkway, Marysville Innovation Park (33 Innovation Park), Marysville, Union County, Ohio

AWS Marysville Innovation Park data center campus (Project Cosmos)

Approved as of March 11, 2025

Marysville approved a 30-year tax exemption in March 2025 for Amazon's $1 billion, two-building data center campus on about 55 acres in its Innovation Park. Also known as: Project Cosmos, Project Cosmo.

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PowerNot statedNot reported in the records found
Floor area500,000sq ft
Site55acres

Who is behind it

ProjectAWS Marysville Innovation Park data center campus (Project Cosmos)Also: Project Cosmos, Project Cosmo
Developer and teamAmazon Web Services (through Amazon Data Services, Inc.)
End userNot found in the recordsNot yet named in any record or credited report we have found.

The record, newest first

  1. AWS announces a $1 billion investment in Marysville, with operations expected by 2027 and at least 25 jobs. (Spectrum News 1 Ohio, March 11, 2025; WSYX ABC6/FOX28, March 11, 2025)

  2. City council approves the CRA agreement for the AWS campus at 14684 Industrial Parkway. (Data Center Dynamics (citing Columbus Business First), undated)

  3. City council hears first readings of the Amazon agreements; Amazon plans two 250,000 sq ft facilities. (Marysville Journal-Tribune, Feb. 12, 2025)

  4. Marysville school board publicly links a planned $1 billion, 500,000 sq ft data center in Innovation Park to Amazon and reviews an abatement with yearly payments to schools and the city. (Marysville Journal-Tribune, Feb. 5, 2025)

Conflicts and open questions

  • Coordinates from a Census geocode of 14684 Industrial Parkway.
  • Size conflict: DCD's earlier piece said up to two buildings of up to 500,000 sq ft each; later DCD and the Journal-Tribune give 500,000 sq ft total in two 250,000 sq ft buildings. Used 500,000 total.
  • Payment figures conflict: Journal-Tribune subtitle cites about $900,000 a year to schools and $100,000 to the city; AWS/Spectrum describe 'more than $15 million' in direct payments over 15 years; DCD's '$15 million per year' reading appears garbled.
  • Rezoning was filed in October 2024 per DCD; approval of the rezoning itself not confirmed in a record.
  • The March 10, 2025 council vote date is from Data Center Dynamics; dated March 11, 2025 coverage confirms the year.

The full record

Status note
Council approved a CRA agreement March 10, 2025; construction was slated to start August 2025 with first operations in 2027. No later record confirms construction.
Evidence
News reports; primary records not yet obtained
Size class
Under 50 MW (outside main scope; kept for completeness)
Map position approximate, from the reported address or area. Updated Oct. 17, 2026.