Set on a quiet stretch of Sag Harbor, Old Millstone Road reveals a modern Hamptons silhouette — cedar shingles, expansive windows, and clean, sculptural lines that let the light take center stage. Inside, the home opens into warm oak floors, a sleek marble-island kitchen, and double-height living spaces framed by black-metal details that feel effortlessly refined. Every room connects to the landscape through generous glazing, creating a soft indoor–outdoor rhythm that defines the property’s calm, contemporary character.