At the end of a quiet drive in Sewickley Heights, 601 Backbone Road unfolds across 16 rolling acres—a legacy estate once part of Farmhill Dairy, now beautifully reimagined. The main house, a refined former Guernsey Barn, offers a traditional layout with light-filled rooms, a chef’s kitchen, two main-level bedroom suites, and a serene upstairs primary. Just beyond, a spectacular 3-level entertaining barn stuns with reclaimed wormy chestnut, vaulted great hall with stone fireplace, bar, lounge, and theater space. Two original cottages—one ideal for guests, the other for office or studio—add flexibility. A six-car garage, cobblestone paths, slate roofs, and radiant-heated floors complete the picture. From its pastoral setting to its rich architectural soul, this is a once-in-a-generation opportunity in the heart of Sewickley Heights.