This custom-built brick and clapboard Colonial presents a rare opportunity to live in a sought-after Bernardsville Mountain neighborhood on a peaceful, cul de sac. Beautifully situated on six private acres where classic white fencing and rock walls border the front of the home, the inviting 5,000 square-foot layout is ideal for special occasion entertaining and everyday living. Distinctive wide moldings, gleaming hardwood floors and sun-filled gathering spaces are among the design hallmarks in this well-maintained home which features freshly-painted rooms. A whole house generator has a new battery.The welcoming entry fitted with striking moldings gives way to a tray ceiling living room featuring wood floors and a marble surround gas fireplace. A stunning dining room lined in impressive millwork and chair rail moldings offers large windows overlooking the front yard. Adjoining the dining room is an open kitchen, breakfast room and family room, where walls of windows frame views of the professionally landscaped backyard. A focal point in the family room is a marble-clad wood-burning fireplace flanked by custom wood cabinetry. Expansive window seats provide additional seating. Nearby are conveniences such as a mud room, back entry, rear staircase, laundry room, powder room and door to the two-car garage.One-level living is an option in a first floor master suite offering Stark carpeting, a tray ceiling, and a wall of custom built-ins with shelving, cabinetry and closets. The indulgent marble-floored master bath presents a double wood vanity topped in marble and a seamless glass door shower.Upstairs are two en suite bedrooms. The magnificent second story office or fourth bedroom offers a cathedral ceiling, an oversized picture window, built-ins and hardwood floors. Nearby is a full tile bathroom with designer touches. This level also contains an expansive great room with built-in wood entertainment center, Surround Sound and a window wall overlooking the backyard. Completing the second floor is an unfinished attic.Warm weather entertaining is easily hosted in the verdant backyard providing a slate patio framed by perennial gardens, a stone wall and brick stairs to level grounds. There is a pergola entry to the terrace from the driveway and mud room.This serene Bernardsville Mountain setting is a short distance to the charming downtown, schools, Midtown Direct trains and major highways.