Londonderry Township, Dauphin County
Viridian Partners pitched a data center on Zeager Bros. land near Route 230 in 2025, and the township adopted conditional use rules in February 2026. No plan has been filed, and the project is separate from the Crane nuclear restart.
On January 6, 2025 township staff proposed data center zoning, citing interest after Microsoft's deal to restart Three Mile Island. On February 3, 2025 Viridian Partners presented a data center concept for the Zeager Bros. property. On June 2, 2025 supervisors approved Zeager Brothers' request to remove five parcels from the township's Agricultural Security Area. Hearings on the overlay opened July 7, 2025 and continued August 4, 2025. On October 14, 2025 the Planning Commission reviewed a revised draft that cut the overlay to 40 parcels, and staff noted a developer's eight-building sketch for the Zeager land. On December 1, 2025 supervisors learned a data center developer had filed a curative amendment; its hearing was moved to February 18, 2026 and then canceled. Supervisors adopted Ordinance 2026-03 on February 11, 2026. On August 3, 2026 staff said no data center plans had been submitted.
The revised rules call for 24-foot-high buffer yards made of a 12-foot berm and 12 feet of screen planting, facade standards and new limits on woodland disturbance, after residents raised the loss of farmland and woodland on the Zeager land.
Londonderry Township, Dauphin CountyOrdinance 2026-03 requires a 24-hour ambient sound study and modeled post-construction sound levels at every property line, and limits generator testing to 9 a.m. to 4 p.m. at no more than 70 dBA.
Londonderry Township, Dauphin CountyThe township's rules require data centers to use public water and sewer with no groundwater use or on-site wastewater discharge, and staff said a data center at the Zeager property would have to connect to public water.
Londonderry Township, Dauphin CountyThe revised rules call for construction access from an arterial road such as Route 230 (Harrisburg Pike).
Londonderry Township, Dauphin CountyThe developer argued the township's zoning didn't provide for data centers and proposed its own complete data center ordinance, according to the township manager and solicitor.
An unnamed data center developer and Londonderry Township · Hearing set for February 18, 2026 was canceled as of February 3, 2026; township records don't state the outcomeIn Pennsylvania, the local zoning ordinance sets the route. A conditional use is decided by the elected governing body (supervisors, commissioners or council). A special exception or variance, and an appeal of a zoning officer’s decision, go to the Zoning Hearing Board. Each is a public hearing on a record: affected neighbors can ask for party status, cross-examine witnesses, and appeal. Municipalities can also adopt data center ordinances with enforceable standards.
Know your rights →Organized community opposition is the single most effective check on these projects in Pennsylvania. Show up to hearings, submit comment when it is taken, support legal and expert-witness costs, and press your municipality for a real ordinance. Pennsylvania municipalities cannot simply freeze applications, but a curative amendment under the Planning Code gives them a defined window to fix a defective ordinance.
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