First time ever on the market and proudly presented by its original owners, this rare and remarkable custom brick Adams Colonial is set on 2 lush acres in prestigious Old Westbury and showcases masterful symmetry, bespoke Italian finishes, and resort-style amenities throughout. Spanning a total of 9,433 square feet, including the lower level, this exceptional estate offers 7 bedrooms and 6.5 baths. A dramatic floating staircase by famed Florentine architect Marzio Cecchi sets the tone, complemented by richly appointed entertaining rooms, three fireplaces, a custom chef's kitchen, and a stunning primary suite with spa bath and skylit walk-in closet. Designed for exceptional entertaining, the lower level features high ceilings, a 15x40 indoor pool with Jacuzzi, a recreation room, and access to a sunken terrace. Additional highlights include a 3-car garage, tennis/pickleball court, lush manicured grounds, and a whole-house generator, creating a truly elevated lifestyle in one of the North Shore's most sought-after enclaves. East Williston Schools.