The interiors of this glorious retreat's many buildings are given the Nina Campbell treatment with vibrant palettes, sumptuous fabrics, fine antiques, and a contemporary clarity. Constructed at the turn of the last century, the core of the main house is a simple cottage overlooking a secluded cove. The pioneering couple who built it had no idea that they were creating a legacy that would become central to the lives of future generations of their family, who use the place as a retreat from busy lives in the city. The main house evolved from that summer cottage to a larger Federal-style manse—whose recent reinvention was overseen by New York architects Ferguson & Shamamian—in a landscape with outlets for indoor and outdoor bliss. Campbell is familiar with creating backdrops for entertaining—she had previously designed Annabel’s, the renowned private members’ club in London. With a dedicated party villa, bowling alley, pool house, and ten