Nature lover's paradise! This expanded 4 bedroom/2 bath contemporary home is on a beautiful, landscaped lot in a private neighborhood setting. The open floor plan has a living room with fireplace and skylit cathedral ceiling, spacious kitchen with stainless appliances and dining room with sliders to the deck and bluestone patio. The fabulous master suite addition has a bay window, a master bath with double vanity, an office nook, walk-in closet and a separate laundry room. Three more bedrooms and a family bath complete the main floor. The huge lower level has a fireplaced family room with full windows, exercise/play room with new flooring, sunny home office with large windows, and additional storage rough-plumbed for a future third bath. The back yard is gorgeous with multiple perennial beds, exterior lighting and abutting wooded acreage. Spacious 2 car garage, 2019 oil tank, and invisible dog fence. Convenient to Acton, Concord or Lincoln trains, Haynes School and The Greenwood Club!