Mercer Mountain Magic indeed! At the top of the mountain and the end of private and sought-after Mercer Mountain Rd, the stacked-stone pillars of 427 invite you down this 11+ acre estate property's quiet, winding drive. Nestled in nature and surrounded by soaring hardwoods, the nearly 3,600sf contemporary delights with walls of windows, a great room + separate dining, vaulted ceilings, four fireplaces, and four full baths. A spacious, tree-top, two-level deck with screened porch for relaxing or entertaining with family and friends overlooks a peaceful, terraced path down to the 8+ acre private pond below. Stunning sunset views of the distant rolling farmland and Catskill Mountains will never get old. Much of the basement has been finished as well, affording tall ceilings, picture windows, exposed beams and a formal rear entrance. Lastly, a built-in, two-car garage completes. Numerous upgrades included: new furnace...A/C...whole-house water filtration...cedar siding...deck... front entrance...and exterior paint. Well situated in the Hudson Valley with easy access to both the Taconic State Parkway and the Mass Pike. And convenient driving distances to multiple, bustling town centers in both NY and MA...Chatham - 20 min...Hudson - 35 min...Lennox 30 min...and Great Barrington 30 min.