A seawalled setting for a 40-foot yacht proved the perfect foil for Villa del Paradiso’s Venetian architecture. The sun-filled habitat’s 6,800 square feet of majestic settings open to travertine poolside terraces, one beset with a stone fireplace. Moments from the walled gardens is a private beach on the Gulf of Mexico. A grand staircase and Italian mosaic gallery introduce the living room, which features cantilevered balconies and a 17th-century mantel recreated from an Addison Mizner estate in Palm Beach. The formal dining room pairs with a butler’s pantry and island kitchen with waterfront dining. Wine and media rooms, a beamed loggia, and a library with coffered ceiling bask beyond. An elevator unveils four suites, each bedazzling in palazzo splendor.