Stop NJ Data Centers

Active campaign

The data center at 4405 US Route 1

A data center of roughly 341,000 square feet is being built on the former Princeton Nurseries site at 4405 US Route 1 in South Brunswick. The township Planning Board approved it in May 2025.

The facts

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Location
4405 US Route 1, South Brunswick (Middlesex County), on the former Princeton Nurseries site [Compute Atlas]
Site size
About 143 acres [Patch]
Building size
About 341,000 square feet [Princeton Perspectives]
Developer
Sentinel Data Centers. The applicant of record is WRV Nurseries South Brunswick Owner, LLC. [Compute Atlas]
Approval
Approved by South Brunswick in May 2025 [Patch]
Status
Listed as under construction, with completion targeted for the end of 2026, according to industry trackers [Compute Atlas]

Why it matters here

Contaminated soil

The Sierra Club New Jersey Chapter says the property contains soil contaminated with dieldrin and chlordane, two pesticides now banned in the United States, and that construction could disturb capped soil berms.

Source: Sierra Club New Jersey Chapter

Water

The Sierra Club resolution notes the site is near wetlands and the Millstone River, which it describes as a drinking water source for the region.

Source: Sierra Club New Jersey Chapter

Diesel generators and air quality

The facility will use diesel backup generators. The Sierra Club resolution raises air pollution from them, and Princeton residents have asked for an NJDEP air-permit hearing and local air monitoring.

Source: Sierra Club New Jersey Chapter

Noise

According to Mayor Carley, the approval requires sound walls and limits diesel generator testing to daytime hours. Residents will want to see how that is enforced.

Source: Princeton Perspectives

Timeline

  1. Data center proposal announced for the former Princeton Nurseries site. [Compute Atlas]
  2. South Brunswick approves the plans. [Patch]
  3. About 100 people attend a public meeting on a permit for the data center at the Princeton Marriott. [TAPinto Princeton]

What you can do

Sign the petition

A South Brunswick resident's Change.org petition asks the township to stop the project.

Open the petition

Request public records

Before you file an OPRA request, check our list of records we're looking for. Someone may already have asked. Pick one marked "Wanted," file it, and email us so we can mark it requested. Already have records, photos or video? Send them too.

See the records list

Watch for NJDEP air permit notices

NJDEP posts public notices for air permits, including comment deadlines.

NJDEP public notices

Ask for meetings to be streamed and archived

Township meetings are shown live only on local cable channels 26 and 45, with no online stream or archive we could find. In 2026, every Council and Planning Board meeting should be streamed online and kept for the public record.

Contact the Mayor and Council

Demand real notice for big projects

State law (N.J.S.A. 40:55D-12) only requires notifying property owners within 200 feet of a project, 10 days before the hearing. For a 143-acre data center, that's almost no one. We're seeking reforms that would require adequate notice to everyone affected.

Read the notice law

Join the conversation

Updates, meeting reminders and discussion on our subreddit.

Go to r/StopNJDataCenters

Officials on this project

See quotes and positions →

Documents and public records

We're collecting the public records on this project: site plans, the approval, permits and studies. 11 still need someone to request them.

See the records list →

Coverage and sources