Situated in one of Mountainside's most coveted neighborhoods, on a quiet road, sits this stately custom home on .50-acre, with separate guest cottage! Mature landscaping complements the stone & wood facade, and a long driveway and lush front yard build anticipation as you approach this charming residence. Gorgeous oversized windows, and an eyebrow dormer elevate the facade of this already sophisticated home. Enter into a spacious and bright foyer, the flow of this home is ideal for entertaining & everyday living alike. The open-concept EIK features a breakfast bar with seating, SS appliances, table area & doors to the roof-top deck. The kitchen is open to the FR with built-in cabinetry & wine fridge. Also on this level are a formal DR, powder room and LR with wood-burning FP which originally was a park ranger's station. The 2nd fl features 4 large beds and 2 baths including the primary suite with vaulted ceiling, WIC and FB with tub & shower. 5th bedroom/flex space, and more storage on the 3rd floor. Enjoy spectacular NYC skyline views from both upper floors. The lower level features a media room with theater seating and surround-sound, access to the 2-car garage - and more storage. The expansive front, and rear yard offer ample space and privacy, the cottage houses a full bath & kitchenette. Premier location, walking distance to the 2000+ acre Watchung Res and 8 min drive to the Summit train for mid-town direct service to NYC. This is truly a one-of-a-kind property.