Billionaire Citadel CEO and serial trophy home buyer Ken Griffin is in need of a personal megayacht marina in Miami Beach.

Griffin’s recent application to build the 30,000-plus-square-foot marina, first reported by the South Florida Business Journal, dubs the project One Island Park.

Griffin, whose Citadel hedge fund and sister company Citadel Securities quit Chicago in favor of Miami in 2022, already owns well over $1 billion of South Florida real estate. Industry insiders told The Post the influence of ultra-wealthy buyers like Griffin flocking to South Florida over the past five years is palpable. 11

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“Whenever people think [South Florida real estate] is running out of steam, there’s another article that comes out with another great Ken Griffin push,” Cyril Bijaoui, a Miami

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