Project Mila data center campus (Trenton)
Also called: Prologis Trenton data center
Prologis is building four data center buildings, about 880,000 square feet and 250 megawatts, on 141 acres in Trenton's industrial park. Amazon is expected to use it. Residents learned of it only after the land sale and are pushing a city vote to ban more data centers.
Where things stand: Site plan approved March 30, 2026. Construction was underway by August 2026. A resident ban on data centers is headed to a city vote after an Ohio Supreme Court ruling.
🕒 Latest update (Sept 3, 2026): Ohio Supreme Court ordered Trenton to let voters decide a proposed ban on new data centers.
What we know
- 📍 WhereTrenton Industrial Park, near Woodsdale and Kennel roads, Trenton, Butler County
- 🏢 CompanyPrologis
- 👤 Built forAmazon Web Services (expected, per WVXU)
- 🌳 Size141 acres
- ⚡ Power it needs250 megawatts (about as much as 200,000 homes)
- 💸 Tax breaks15-year property tax break. City water rates frozen through 2032 under the deal.
- 👷 Jobs promised140
- 🤐 Secret deal (NDA)Yes. A city official signed a secret deal (NDA). A resident filed a Court of Claims complaint to get a copy.
❓ Still unanswered
Nobody has answered these in public yet. Can you help find out?
- Is Amazon the confirmed end user? 🙋 I'll find out
- How much water will it use each day, and from which wells? 🙋 I'll find out
- Would the voter ban affect this project, which is already being built? 🙋 I'll find out
- When is the special election on the data center ban? 🙋 I'll find out
What happened so far
- 2024Trenton agreed to sell industrial park land to the developer.
- Oct 2025Prologis closed on buying the land from the city.
- Nov 2025City Council created a new zoning district for the project.
- March 30, 2026Trenton Planning Commission approved the site plan 4-0 in a 10-minute meeting.
- Sept 3, 2026Ohio Supreme Court ordered Trenton to let voters decide a proposed ban on new data centers.
Local votes and rules
🗳️ Public vote
Voters will decide a city charter change that would ban data centers that use more than 25 megawatts of power. City council refused the petition in August 2026, but the Ohio Supreme Court ordered the city to send it to voters. If it cannot be checked in time for November, a special election must be held.
⚖️ Court case
The Ohio Supreme Court ordered Trenton to send residents' petition for a data center ban to voters. City council had refused it in August 2026 and raised the number of signatures needed.
🤝 Agreement with the company
City council approved a 15-year, 75% property tax break (Community Reinvestment Area agreement) for developer Prologis's 250-megawatt data center on 140 acres off Woodsdale Road. It also approved a separate payment deal (compensation agreement).
An aerial photo of the area.
Where this comes from
- Trenton planning commission approves site plan for data center · WVXU · March 30, 2026
- Data center in Trenton spurs transparency concerns · WVXU · Aug 11, 2026
- Data center ban will go before voters after Supreme Court ruling · Spectrum News 1 · Sept 3, 2026
- OpenStreetMap road junction check · OpenStreetMap contributors · Oct 7, 2026
- Amazon Project Mila Campus · Baxtel · 2026
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