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News | Ken Griffin’s multibillion-dollar New York office bet is no longer just a plan

Reported by Costar
Oct 21, 2026· 2 min read
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Key Takeaways
  • • Vornado Realty Trust and Rudin closed their previously announced investment in 350 Park Avenue in Manhattan, moving Ken Griffin's Citadel-linked office project past the planning stage, according to CoStar.
  • • The skyline-shaping tower secured $3.3 billion in construction financing, marking a key milestone for one of Manhattan's largest new office developments.
  • • Citadel is the involved Griffin-linked party named in the coverage, with Vornado Chairman and CEO Steven Roth identified as a key contact.
  • • The primary source is paywalled, so the figures reported here are limited to the headline and lead paragraph.
Summary
Vornado Realty Trust and Rudin have closed their previously announced investment in 350 Park Avenue, a Manhattan office project tied to billionaire investor Ken Griffin, according to CoStar. The closing advances a development that CoStar describes as one of the city's largest new office projects, and the headline frames it as no longer just a plan.

The project's construction financing totals $3.3 billion, according to the report. CoStar describes the tower as skyline-shaping, though the full article is available only to CoStar subscribers, so additional details on the capital structure, tenancy, leasing and timeline could not be verified from the available source.

Citadel is the company CoStar associates with the project, and Steven Roth, Chairman of the Board and Chief Executive Officer of Vornado Realty Trust, is listed as a key contact. For institutional real estate investors, the reported closing and $3.3 billion loan indicate that a major Manhattan office development has moved into execution, though the source material available here is limited.

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Sources

1 outlet

AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Costar News | Ken Griffin’s multibillion-dollar New York office bet is no longer just a plan