The top-floor condominium at 9 West Walton Street, Unit 3800, in Chicago has been placed under contract with a price of $11,000,000. The condo encompasses 7,500 square feet and has a price per square foot of $1,467. Notable features of the unit include 16-foot windows, two terraces, and private elevator access to a rooftop pool. The property has been on the market since July.

Summary of transaction details:

• Property Type: Condo
• Transaction Amount: $11,000,000
• Address: 9 West Walton Street Unit 3800
• Market: Chicago
• Seller: Ken Griffin
• Brokers: Emily Sachs Wong & Nancy Tassone, Sotheby's International Realty
• Square Footage: 7,500
• Price per Square Foot: $1,467

Billionaire Ken Griffin has signed a contract to sell the condo to an undisclosed buyer as part of his strategy to divest from his properties in Chicago following his relocation to Miami. The representation of the deal was provided by brokers Emily Sachs Wong and Nancy Tassone from Sotheby's International Realty.