Center Penthouse, Palazzo Della Luna, Florida

Fisher Island’s most expensive listing yet, this penthouse is the jewel in the private oasis’s crown. The tropical enclave is fringed with whitesand shores and comes with an abundance of amenities including marinas, tennis courts, a restaurant, spa and even a school. The 10-story, Kobi Karp-designed building, Palazzo Della Luna, pays tribute to the island’s original development — the circa-1936 Vanderbilt Mansion — by reflecting Mediterranean charm in its contemporary form with emphasis on indoor-outdoor living. Currently under construction with completion slated for summer 2019, this seven-bedroom, eight-bathroom penthouse covers 10,194 interior sq ft, with 1,993 sq ft across four separate terraces on the 10th floor and a 7,322-sq-ft rooftop designed by Enzo Enea with Ipe wood, Sea Grey granite and manicured grass. Inside, take in the water, city and island views from the 15-ft-high great room with oak flooring, and cook up a storm in the custom Boffi kitchen. Access the island by private yacht from Downtown Miami and Miami Beach.