This quintessential Mid-Century Modern on 10+ acres of land, has been expertly crafted by three renowned American architects. Originally designed by Carl Koch and personally sited by then neighbor, Walter Gropius, the home was expanded in 1968 by Walter Hill of Hoover & Hill. This one-of-a-kind, custom home has never before been offered on the market. Its unique features include a butterfly roof, cathedral ceilings and single floor casual living. Recently refreshed with new paint and hardwood floors, the clean lines and open floor plan will welcome and charm you. Glass walls and sliding glass barn-style doors allow unobstructed, 4-season views of the surrounding gardens and trees. An oversized four-car garage boasts additional work or studio space. A separate entrance offers bonus space for a potential professional office or au pair suite. Follow the driveway to 10 glorious acres in the heart of Lincoln, abutting conservation land and trails; a stroll to Walden Pond and Town Center.