Located on a quiet cul-de-sac in Water Mill, this brand new construction is situated on a .74 +/- acre western facing flag lot bordering an expansive agricultural reserve. With a private approach, the cedar-shake sided home is set down a hedge-lined Belgian stone drive. Encompassing 7,100 +/- sq. ft. across three levels, the residence features six ensuite bedrooms along with eight full and one half bathrooms. The front covered entryway leads into a double height foyer. Walls of sliding glass doors and windows allow an abundance of natural light across the open-concept great room including a living area with fireplace, dining area, and gourmet kitchen with island seating and a separate pantry. The first floor provides a convenient junior primary suite with a spacious closet, bathroom with dual vanity, and private access to a rear patio. The thoughtfully designed mudroom allows entry from both the side stoop and attached 2-car garage. Set on the second level, the primary suite features a fireplace, lavish bathroom with soaking tub, two closets, and an expansive terrace showcasing views across the reserve. Completing this floor are three ensuite bedrooms and a laundry room. Designed for year-round enjoyment, the lower level offers a recreation area, wet bar, glass-enclosed gym, sauna, ensuite bedrooms, full bathroom, and second laundry room. In addition, a bonus room can be finished to fit a variety of needs such as a golf simulator or movie theater. On the exterior, an outdoor kitchen allows for al fresco dining on the covered patio, which overlooks the 50' x 20' gunite pool and spa. Meticulously landscaped, the backyard intentionally provides privacy without minimizing the sprawling reserve and sunset views. With a desirable location in Water Mill, this new construction opportunity presents an idyllic and convenient setting within close proximity to many attractions of the Hamptons.