Cheyenne council approves massive Highlands annexation and business‑park rezones amid public outcry over data‑center plans

The Cheyenne City Council approved a contested package of annexations and zoning changes on July 13 that together clear the way for a large, multi‑phase employment campus of roughly 3,500 acres south of Sweetgrass and adjacent to existing business parks.

Mayor Collins presided over the meeting and the council advanced the owner‑initiated annexation and multiple rezones after more than three hours of public testimony from residents, local lawmakers and company representatives. The most contentious item — a 3,459.99‑acre annexation commonly referred to by speakers as the Highlands application — passed on third reading with several council members recorded as voting no.

Why it matters: Speakers for weeks have warned that a project of this size could reshape the city’s water and electric infrastructure, raise noise and air concerns and reduce residential land available in a community already facing housing pressure. Supporters, including Microsoft representatives, said annexation brings projects under city rules, requires developers to pay for infrastructure, and creates high‑paying jobs and workforce training partnerships with LCCC and other local providers.

What the council did: After public hearings and committee recommendations, the council approved the Highland annexation on third reading and then adopted related ordinance votes to change future land‑use maps and to rezone the largest portions to BP (Business Park). The council also retained roughly 500 acres in agricultural (AG) status as a planned buffer between the new employment lands and nearby residential subdivision(s).

What residents asked for: Dozens of residents and at least two state legislators urged postponement and stronger, legally enforceable community‑benefit agreements. Testimony included allegations about a February incident in which an industrial contractor’s discharge introduced a rare bacterium into a reclaimed water system; Board of Public Utilities staff said they shut down the reuse system out of caution and are preparing a timeline and technical details. Speakers repeatedly asked for independent noise, water‑demand, traffic and environmental studies and for binding protections (setbacks, monitoring, caps on water use, paid remediation funds and long‑term reporting) before the city commits to annexation and rezoning.

What company representatives said: Rachel Erwing, Microsoft’s land development manager, told the council the company values long‑term partnership with Cheyenne and plans additional public meetings as project designs evolve. Microsoft’s community affairs team and Cheyenne Leads representatives said the company and its economic‑development partners would pay for most infrastructure needed to serve the campus and invest in workforce programs including a data‑center academy at LCCC.

Council discussion and votes: Supporters on the council argued that annexation is preferable to leaving the development in county jurisdiction because city water and sewer make impacts easier to monitor and control, and because developers will be required to pay infrastructure costs. Opponents argued the record lacks the site‑specific engineering and acoustic data needed to justify a BP zone (which allows light industrial uses) and that approving rezones and a future‑land‑use change now would strip away leverage for negotiating binding community protections. The council debated and rejected motions to postpone or to set a later effective date; the final package passed with several members recorded as voting no on individual items.

Next steps: The Highlands area will move into planning and permitting phases under city jurisdiction. Council members and staff said they anticipate further public meetings, additional technical reviews and possible legislative action at the state level to address regulatory gaps. The Board of Public Utilities and DEQ remain involved in water and environmental review.

Who said what (representative quotes): - Mayor Collins described the annexation as part of a regular planning process and praised community engagement around the July 4 America 250 events. (Mayor Collins) - Connor White, the city planner, said the annexation petitions included certified mailings, demonstrated contiguity and that an outside water‑user agreement was already in place for at least one parcel. (Connor White, Planning and Development Department) - “Don’t let urgency replace due diligence,” state Representative Anne Lucas told the council, urging more time and study. (Rep. Anne Lucas) - “We are committed to protecting the water and being good stewards,” Microsoft community affairs staff said, and promised more public engagement as plans mature. (Adonis Trujillo, Microsoft Community Affairs) - Multiple residents said they feared noise, water depletion, lost property values and lack of enforceable commitments; several urged legally binding mitigation before any rezoning. (various residents)

What remains unsettled: Citizens and some council members said they will press for written, enforceable community‑benefit agreements, independent environmental baselines and clearer notice and outreach to affected neighbors. Board of Public Utilities staff said they will publish a detailed timeline and technical answers about the February wastewater event and the precautions now in place.

The council moved other routine items and voted on multiple additional annexations and zoning changes during the meeting. Several votes carried on 3rd reading with some members dissenting; a handful of procedural amendments and substitutes were considered in committee and on the floor.

The council did not adopt a universal pause; opponents said they are reviewing legal options and signaled intent to seek additional oversight or remedies if they believe statutory procedures were not followed.