Wausau adopts data center rules, adds 200-foot residential buffer

The Wausau City Council unanimously voted to adopt new zoning rules for data centers, which include a mandatory 200-foot buffer from residential properties. The ordinance, approved 11-0 by the council after an 8-3 vote to add the setback, establishes a specific definition for data centers within the city's zoning code.

Under the new regulations, stand-alone data center facilities in medium- and heavy-industrial districts will require a conditional use permit. Applicants will be required to submit detailed information concerning anticipated water use, energy demand, wastewater, noise, and sustainability impacts. This initiative comes as communities across Wisconsin are developing policies in response to the rapid expansion of facilities supporting AI, cloud computing, and cryptocurrency operations. The city plans to revisit these regulations in September to consider additional protections, with Alder Michael Martens calling the ordinance a "good starting point" for more detailed project reviews. Residents, including Ardan Thornhill and Tom Kilian, had urged the council for stricter standards, emphasizing concerns over infrastructure costs, resource use, and the potential long-term community impact, with Kilian specifically advocating for the 200-foot residential separation.