Ken Griffin's NYC skyscraper moves forward despite feud with Mayor Zohran Mamdani
Citadel’s planned skyscraper at 350 Park Avenue in NYC is moving forward despite a public feud with Mayor Zohran Mamdani. Vornado Realty Trust CEO Steven Roth said on an earnings call that the site is under demolition and Vornado will exercise its option for up to 36% ownership, with Citadel as a 1-million-square-foot anchor. The project involves over $6B in spending, according to Citadel.
How this was made

The 30-second read
Why it matters
Vornado’s disclosed intent to exercise its investment option and the project being under demolition/under construction are the only concrete, company-linked developments. The rest is political context and employee memo job-creation claims without new financial metrics.
Market read
Traders get a modest, deal-status update for VNO’s NYC development exposure, but no new valuation-driving numbers are provided.
What to watch
The article lacks cap-rate, lease economics, financing terms, and any updated schedule or cost guidance, which are the key drivers for REIT valuation impact.
Background
The article frames a political dispute over a proposed pied-a-terre luxury tax and Griffin’s Central Park South penthouse, then ties it to the status of a major NYC office development at 350 Park Avenue.
Ticker impact
Vornado Realty Trust CEO says the 350 Park Avenue project is under construction and Vornado will exercise its option for up to 36% ownership.
Likely modest positive bias for VNO sentiment, but not a standalone earnings-level catalyst.
The article provides a concrete status update (under construction, option exercise intent) tied to VNO’s stake, but no financial terms, guidance, or immediate earnings impact are disclosed.
Market effects
Reinforces that major NYC office development can proceed even amid political pressure, which may marginally support sentiment toward large REIT development pipelines.
NYC Midtown office construction continues, potentially supporting local construction and services employment narratives.
Limited, mostly local real-estate and political risk narrative with no direct global linkage.
Counterpoint
The feud could still translate into permitting, tax, or tenant-demand risk later, so “moving forward” may not eliminate downside.
Key entities
- companyVornado Realty Trust
REIT partner in the 350 Park Avenue venture; CEO comments on earnings call about construction status and option exercise.
- companyCitadel
Griffin’s firm described as 60% partner and 1-million-square-foot anchor tenant for the project.
- personZohran Mamdani
NYC mayoral figure who criticized Griffin’s penthouse and pied-a-terre tax, prompting Griffin’s response.
- personKen Griffin
Citadel founder whose feud with the mayor is cited as background to the project’s progress.




