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Citadel threatens to halt $6B NYC project

Reported by Moneywise
Apr 25, 2026· 3 min read
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Key Takeaways
  • • Citadel threatens to halt or reconsider a $6 billion Midtown Manhattan development project (350 Park Avenue, 62-story tower) in response to NYC Mayor Zohran Mamdani's public criticism of Ken Griffin's $238 million penthouse purchase.
  • • Mayor Mamdani featured Griffin's Central Park South property in a viral April 15 video promoting Governor Kathy Hochul's proposed pied-à-terre tax on luxury secondary homes valued above $5 million, naming Griffin specifically as an example of wealth concentration.
  • • Citadel COO Gerald Beeson sent a companywide email Thursday signaling potential project reversal, emphasizing the development would generate 6,000 construction jobs and support 15,000+ permanent positions in Midtown Manhattan.
  • • Mamdani declined to express regret Friday, defending his targeting of Griffin's property as the "most expensive home in the United States" purchased in 2019, and framing the tax as applying only to a "very select group of properties."
  • • The escalating dispute exemplifies tension between progressive tax policy and major real estate investment commitments in New York City, with significant employment and economic development implications at stake.
Summary
A $6 billion Manhattan development project backed by hedge fund titan Ken Griffin's Citadel faces potential cancellation following an escalating public dispute between Griffin and New York City Mayor Zohran Mamdani over wealth taxation and secondary home ownership. The conflict intensified after Mamdani released a viral video on April 15 promoting Governor Kathy Hochul's proposed pied-à-terre tax, which would impose annual fees on luxury properties worth more than $5 million whose owners do not reside full-time in New York City. In the video, Mamdani specifically highlighted Griffin's 24,000-square-foot penthouse at 220 Central Park South—purchased for $238 million in 2019, the highest-priced residential home sale in the United States at that time—as an example of properties that would be subject to the new tax.

Citadel's response came swiftly through Chief Operating Officer Gerald Beeson, who sent a companywide email Thursday asserting that the mayor's public criticism was unwarranted and signaling the company's willingness to reconsider its commitment to the 350 Park Avenue redevelopment project. The planned 62-story skyscraper represents a major economic commitment, projected to cost over $6 billion and to generate 6,000 construction jobs while supporting the creation of more than 15,000 permanent positions in Midtown Manhattan. In his email, Beeson wrote: "The project – if we move forward – will entail more than $6 billion dollars of spending," framing the threat as a direct response to what he characterized as the mayor's suggestion that Griffin and similar wealthy individuals "do not contribute enough to the greater good."

Mamdani remained unrepentant when pressed by reporters Friday, declining to apologize and instead defending his decision to single out Griffin's property. He argued that Griffin's penthouse warranted specific mention because it was "the most expensive home in the United States of America, publicly reported" at the time of purchase. The mayor framed the pied-à-terre tax as applying narrowly to ultra-luxury secondary homes, stating that "in a political environment where there is always an attempt to describe any increase in taxes as if it would be one that would apply to all, we wanted to make very clear that this applies to a very select group of properties."

The dispute underscores rising tension between New York City's progressive political leadership, which has campaigned on aggressive wealth taxation to fund social programs, and major institutional investors and developers whose real estate commitments are critical to the city's economic base. Vornado Realty Trust, Citadel's partner on the 350 Park Avenue project, had touted the development in February earnings communications as a transformational asset, with executive vice president Glen Weiss stating: "There will be nothing like this available in New York. This will be the best building built in the city by far." The project's potential cancellation now poses direct consequences for New York's construction employment and tax base.

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Sources

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Moneywise Citadel threatens to halt $6B NYC project