QTS data center campus on Princeton-Hightstown Road
Also called: QTS East Windsor 1, former McGraw-Hill site
QTS, owned by Blackstone, runs a data center on the old McGraw-Hill campus in East Windsor. It wants to add a second, larger building. Residents asked about higher power bills at packed planning board meetings.
Where things stand: First building opened in 2025. A second building was reported approved by the planning board in May 2026.
🕒 Latest update (May 2026): Planning board approved a second data center building (about $600 million), with conditions on cooling and paying for road and utility upgrades.
What we know
- 📍 Where159 Princeton-Hightstown Road (former McGraw-Hill campus), East Windsor, Mercer County
- 🏢 CompanyQTS Data Centers
- 🏛️ Owned byBlackstone
- 🌳 Size194 acres
- 🔌 Where the power comes fromPower grid; the campus also has a 50-acre solar field (tracker data).
- ❄️ CoolingClosed-loop cooling for the second building (reported)
- 💵 Cost$600 million
❓ Still unanswered
Nobody has answered these in public yet. Can you help find out?
- Did the planning board approve the second building, and on what date? We only found this on a data center tracker. 🙋 I'll find out
- How much power (MW) will the full campus use? 🙋 I'll find out
- How much water will the campus use per day? 🙋 I'll find out
What happened so far
- Nov 19, 2024Topping-out ceremony for the first building.
- April 2025First phase finished, per the township.
- May 2026Planning board approved a second data center building (about $600 million), with conditions on cooling and paying for road and utility upgrades.
Local votes and rules
⏸️ Pause on new data centers
East Windsor posted Ordinance 2026-06, which would pause new data centers through Dec. 31, 2027 while the state writes rules. It removes computer and data storage centers as allowed uses in the R-O, R-O2 and I-O zones. The posted copy has no adoption date, so we could not confirm it passed. QTS already runs a data center in the township.
An aerial photo of the area.
Where this comes from
- QTS topping-out ceremony · East Windsor Township · Nov 2024
- QTS: East Windsor 1 DC2 · Baxtel · 2026
See something wrong? Tell us and we'll fix it.