First, Monroe Township said yes. Then it said absolutely not. The New Jersey municipality spent 2025 quietly amending its redevelopment plan to welcome AI data centers onto 159 acres of former farmland along the Black Horse Pike. By January 2026, the planning board had granted preliminary approval for 1.6 million square feet of warehouses on the site. Then residents packed town hall meetings, connected the dots between “warehouse” and “AI data center,” and the political winds shifted hard. On April 22, Monroe’s council passed two ordinances: one stripping data center permissions from the specific site, the other banning data centers township-wide. Now Princeton-based developer Hexa Builders LLC is suing for more than $300 million in federal court — and every suburb currently courting AI infrastructure tax dollars should be paying close attention.
The Bait-and-Switch That Started Everything
The sequence of events that landed Monroe in a Camden courtroom reads like a cautionary tale about promising something you can’t take back.
Here’s the timeline:
- 2025: Monroe amended its redevelopment plan to explicitly permit data centers on the Black Horse Pike site.
- January 2026: The planning board granted Hexa preliminary approval for two warehouses totaling roughly 1.6 million square feet.
- Early April 2026: Two weeks before the ban vote, Hexa filed an amended application converting one warehouse into a 1-million-square-foot data center.
- May 12, 2026: The planning board declared that amended application “incomplete,” effectively blocking the project.
Hexa’s 20-count complaint alleges the township changed submission standards mid-process and applied procedural technicalities under political pressure rather than legitimate planning rationale. The legal claims span New Jersey Municipal Land Use Law violations and Fourteenth Amendment equal protection arguments. A novel First Amendment theory also appears in the complaint: that banning data centers burdens protected speech because those facilities host and transmit information — a largely untested argument in local land-use fights.
Mayor Greg Wolfe said the township would do “everything in our power to stop all data centers from coming here” and would urge land-use boards to “flat-out deny” applications — language now central to Hexa’s lawsuit.
Legal observers note that on-record statements of intent to deny can undermine a municipality’s claim of neutral process, according to NJ Spotlight News reporting on similar home-rule disputes.
New Jersey’s Data Center Civil War
Monroe is far from the only New Jersey town testing whether a categorical ban on data centers can survive a federal courtroom.
Andover Township in Sussex County faces a parallel suit from National Land Developers LLC after banning data centers at a former airport site, with that developer similarly arguing the ordinance was “arbitrary, capricious and unreasonable.” Neptune Township passed a pre-emptive ban. And in Vineland, residents living near a 2.6-million-square-foot AI data center under construction have already filed a federal class action over relentless industrial noise — the exact scenario Monroe neighbors cited when they demanded the ban. Vineland became the cautionary reference point every opponent invoked: a community that discovered what “data center neighbor” actually sounds like at 3 a.m.
New Jersey’s home rule tradition grants towns broad zoning authority. But the Municipal Land Use Law still demands a rational planning justification — not just an angry room and a mayor’s promise. If courts strike down blanket bans as arbitrary, towns will likely pivot to conditional approvals with strict noise, power, and water standards instead. If the bans hold, the Northeast’s AI infrastructure pipeline gets significantly more complicated.
The case now sits in federal court in Camden with no hearings yet scheduled. A $300 million lawsuit is the price of a zoning flip without legal cover. Every municipality currently eyeing data center tax revenue is watching — and probably speed-dialing its zoning attorney.
