Key Points
New York Mayor Zohran Mamdani’s tax agenda has spotlighted valuation gaps in luxury real estate, including Ken Griffin’s $238 million penthouse.
The political logic behind the city’s pied-à-terre debate is now drawing attention to private aviation, particularly aircraft based at Teterboro.
Market participants are increasingly watching Westchester County Airport as a lower-risk alternative to Teterboro if fee pressure intensifies.
NEW YORK. New York’s fight over taxing the ultra-wealthy is expanding from luxury housing to other visible stores of wealth, with private aviation emerging as a closely watched next front.
Mayor Zohran Mamdani’s standoff with Citadel founder Ken Griffin has become a focal point in that broader debate. Mamdani publicly targeted Griffin’s Manhattan penthouse, the most expensive home ever sold in the US at $238 million, while critics of the city’s property tax system pointed to the fact that it was assessed at just $9.4 million for tax purposes.
That disparity became central to the politics around taxing high-value secondary homes. It was also amplified by the now-circulating "Wake up, Ken" video, which helped turn Griffin’s apartment into a broader symbol of what Mamdani and allies describe as undertaxed concentrated wealth.
In the one-minute clip, filmed outside Griffin’s 220 Central Park South penthouse on Tax Day, Mamdani announces the pied-à-terre tax and declares, “Today we’re taxing the rich.” The video became a centerpiece of his social media campaign and helped intensify online discussion around what critics and supporters alike began calling a “Billionaire Hit List.”
The same political framing may be relevant to aviation. A large private jet parked at Teterboro can be cast in similar terms: expensive, visible, and associated with a narrow slice of affluent users.
Possible Shift From Teterboro to Westchester KHPN
Industry experts increasingly identify Teterboro Airport, or KTEB, as a higher-risk facility for any future surcharge scenario because it is operated by the Port Authority of New York and New Jersey. That governance structure gives regional policymakers a more direct pathway to impose higher landing fees or other charges if political momentum builds around what some market participants have described as a potential "Mamdani surcharge."
Westchester County Airport, or KHPN, presents a different profile. It is owned by Westchester County and sits outside Port Authority jurisdiction, making it a more insulated option for operators seeking access to the New York market without the same degree of political exposure.
For some owners and flight departments, a shift in operations from TEB to HPN could represent a strategic hedge rather than a purely logistical decision. In that scenario, moving aircraft activity to HPN would be viewed as one possible way to reduce exposure to any proposed surcharge tied to the Port Authority system.
That dynamic is behind growing attention to a potential shift from TEB to HPN. For operators and owners, the issue is less convenience than governance and risk mitigation.
Not all wealthy New Yorkers are leaving the city. But as tax policy becomes more closely tied to optics, the location and structure of high-value assets are facing closer scrutiny.