The proposed skyscraper, located along Biscayne Bay, would become Citadel’s new global headquarters and include additional office space, a hotel, and other mixed-use components. It is one of Griffin’s largest investments since relocating his business operations from Chicago to South Florida.

The company plans to invest more than $100 million in restoring the property.

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ONE Sotheby’s International Realty will handle the sale through an online auction starting December 3, with a live bidding event in New York on December 17.

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Despite the pullback, interest from Latin American and domestic buyers continues to fuel the region’s luxury sector.

After months of trying to sell the property with no success, county commissioners just voted to put the courthouse up for auction sometime next year. Officials had pitched the historic building as a prime opportunity for redevelopment — a potential mix of apartments, hotel rooms, and office space.