Ferguson has delayed a final decision on Project Butterfly, a proposal centered on roughly $1.8 billion in baseline redevelopment of the former Emerson campus that could expand dramatically under broader financing scenarios, intensifying questions about tax breaks, transparency and environmental safeguards.

The plan would transform the 217-acre former corporate site on West Florissant into what city records describe as a center for technology, energy innovation, advanced manufacturing and research. 

Led by SSL Investments and local attorney Jim Onder, the proposal’s initial redevelopment vision is far smaller than its outer financial ceiling: While developers have promoted roughly $1.8 billion in baseline redevelopment, city documents also contemplate scenarios that could involve up to $22 billion in bonds tied to broader long-term buildout and equipment investment, a scale that has amplified public scrutiny.

At the center of the debate is the data center itself — a facility that houses vast networks of computer servers powering cloud storage, artificial intelligence and digital infrastructure. 

Supporters tout such centers as engines of modern economic growth, but critics increasingly question their enormous electricity demands, water use for cooling systems, diesel backup generators and whether surrounding communities bear environmental and utility burdens disproportionate to the relatively limited permanent jobs they often create.

By restarting the approval process, Ferguson leaders have effectively bought more time for scrutiny — delaying any final decision while residents, schools and advocacy groups continue pressing for clearer financial terms, environmental safeguards and greater public accountability.

Credit: Photo by Lawrence Bryant | St. Louis American

Supporters say the long-vacant campus could generate construction work, preserve and expand economic use of a major industrial site, create at least 100 new full-time jobs under current incentive requirements and establish Ferguson as a larger player in the region’s growing tech economy.

But critics — including residents, the Ferguson-Florissant School District, the Ferguson Library District and the St. Louis County NAACP — argue the project’s scale and public cost demand far more scrutiny before city leaders approve tax incentives that could shape Ferguson’s finances for decades.

Under the current proposal, Ferguson could grant up to 15 years of tax abatements on real estate, personal property and sales taxes, while SSL would make payments in lieu of taxes and other negotiated community payments rather than immediately paying full taxes under standard structures. For opponents, one of the biggest unresolved questions is whether public benefits would adequately match the extraordinary scale of possible tax concessions.

The debate is unfolding as other St. Louis-area communities are taking sharply different approaches to the fast-growing data center boom.

In St. Louis, city officials recently approved a major data center project near the historic Armory without local tax abatements, instead requiring direct community benefits and broader public safeguards. In Festus, backlash over a proposed $6 billion data center became a political flashpoint, with voters ousting multiple incumbents who supported the project after residents argued the process moved too quickly and lacked transparency.

Ferguson’s proposal is not identical to either case, but the regional contrasts underscore the larger question facing local leaders across Missouri: How much public incentive, oversight and community protection should accompany projects promising billions in private investment?

In Ferguson, public pressure has focused not only on the project’s economic promise, but on whether city officials and residents have had enough time and independent information to evaluate it responsibly.

City records and public meetings show repeated concerns over the speed of the legislative process, including objections that council members were being asked to weigh a massive redevelopment package without enough time for deeper analysis of financial projections, environmental risks, utility demands and legal implications.

Defining the proposal as a “rushed process” with a “lack of transparency,” the St. Louis County NAACP called on Ferguson to delay tax-break approval and renegotiate community and environmental protections. 

The council’s delay followed the April election of new Mayor Adrian Shropshire, who inherited negotiations largely shaped before he took office. Shropshire has sought additional time and detail before a final vote.

“I think we do need good economic development in our area. I just need to really know more about the project itself,” Shropshire said. 

Current plans indicate the initial phase would largely involve converting existing warehouse space and expanding existing on-site infrastructure rather than immediately building one of the larger hyperscale campuses proposed elsewhere.

But residents and some council members say critical questions remain about long-term expansion, diesel backup systems, power demands and whether current details are sufficient before granting enormous public subsidies.

“Unfortunately, there are just too many unknowns and too much doubt for me to support the approval,” Councilman Jamil Franklin said.

Onder has argued environmental fears are overstated and that the site’s existing industrial zoning, private utility infrastructure and closed-loop water system make the project more viable than critics suggest.

“I want to create this as a center for entrepreneurship, a center for development. A center for green, environmentally friendly energy and resources,” Onder said.

Still, many residents remain unconvinced.

At town halls and council meetings, residents have raised concerns about pollution, water use, utility costs and environmental justice in a predominantly Black community that many say has already borne disproportionate environmental burdens.

“Ferguson being a predominantly black American community…we are already dealing with environmental racism of all sorts,” resident Lady J Huston said. “So, we don’t need another one coming here in our back doors.”

For now, Ferguson’s fight over Project Butterfly has become more than a debate over one redevelopment deal. It is part of a broader regional reckoning over how communities pursue economic growth in the AI era — and whether billion-dollar promises are enough without public trust, meaningful protections and proof that the benefits will truly reach the people already living there.

Sylvester Brown Jr. is the Deaconess Foundation Community Advocacy Fellow.

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2 Comments

  1. Thank you, Sylvester Brown Jr. for informing our Community about this
    Project Butterfly, 200 megawatt Ai center. The project’s lack of detailed facility plan, lack of environmental impact study & 15 year tax abatement makes it a very bad bet for the city of Ferguson. I hope the council votes NO on May 4!

  2. The city of Ferguson might consider presenting a counter contract that sets specific conditions that must be adhered to before agreement is signed.

    Such as “Natural Gas Powered Turbines must be hydrogen ready and powered by such when such fuel becomes available. -projected 2030-

    Define maximum size of athat is

    Specify that when data center reaches 50MW the cooling system must be closed loop. This allows time to connect to the grid.

    Specify that positioning of data center buildings an any turbines must be positioned that best mitigates noise according to site elevations.

    Specify that the Campus area that borders Woodstock must have minimum 7.5 masonry or stone wall and any heathy mature trees to remain when possible and be interplanted with fast growing attractive trees, shrubs and vines. Think Butterfly Bush, Hummingbird Vine. So as to further mitigate noise disturbance for suburban neighbors & daytime activities at nearby golf-club.

    The 24 hour Campus lighting must be low at night so as not to disturb nearby suburban neighbors.

    Specify that Ferguson Residents skilled in the Building Tradesman must be given preference and all skilled Building Tradesman must be local to Saint Louis.

    The investor has private water resource & Natural Gas resource and will not utilizing any public utilities.

    Dear Ferguson I believe you are dealing with a top 100 lawyer, Multi National Corporations and Venture Capitalism. The Campus is really ideal place for a suburban AE Dara Center.

    For the investor:
    Demonstrates co-operation if care is taken to minimize disturbance of local residents. With Copelands experience in Data Center Cooling products might put them in really good postion to increase sales. The data center when fully functional can be configured to produce energy that then can be bought and sold in the markets at a profit.

    For Ferguson: A reputation that is business friendly.

    Hire a good lawyer to write advocate for Ferguson and write up a proposal. Consult with Expert Engineer in AE data center build that values the environment and values our earths resources.

    Data Centers are not going away they are here, in demand so kets go for it and get a center built that is least obtrusive to our community. Before we are forced to.

    The Emerson

    The Chapter 100 Industrial Development Bond will be paid by private business. Not Ferguson Residents.

    It is the property tax abatement that is hard to fathom. But is typical.

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