Behind a gated entry on a private cul-de-sac, 1 White Deer Lane sits on 3.1 acres in Harding Township, bordering Chatham. A 2025-2026 studs-up rebuild with fully custom finishes, the home offers five en-suite bedrooms and 6 full, 2 half baths across three floors plus a partially finished basement. The first floor features a designer kitchen with custom island seating five, shiplap ceiling, exposed beams. The family open to the kitchen, offers a soapstone fireplace surround & hearth, custom wet bar &French doors to the bluestone terrace. Directly off of the kitchen, the dining room serves everyday meals and larger gatherings with equal ease. Across the entry hall, the living room holds the home's second fireplace & flows into a sunroom with expansion possibilities, tray ceiling & windows on 3 sides. The mud room, laundry, full pool bath and three-car garage complete this level. Upstairs, the primary suite features a spa-like bath and custom walk-in closet with center island. Three additional en-suite bedrooms and a stackable washer/dryer complete the second floor. The third floor adds another en-suite bedroom, ideal as an office or guest suite, cedar closet and walk-in attic. The partially finished basement includes a movie room, home gym, and storage room. Outside, a heated, fenced pool is surrounded by a paver patio. Minutes from Chatham Mall, Madison, Morristown, and Summit nearby. Commutable to NYC via Routes 287, 78, NJ Transit, and BoxCar from Madison and Chatham.