Welcome To #422 Mill River Rd., On A Private Picturesque Location, A Flat Acre Property in Upper Brookville! This extraordinary, fully renovated residence is a true masterpiece of craftsmanship and design, reimagined over the past three years with uncompromising attention to details. From the moment you enter, soaring ceilings and three dramatic skylights flood the interior with natural light, creating an airy, luminous atmosphere. Exquisite custom moldings and architectural details and depth and character throughout, blending classic sophistication with a sleek contemporary aesthetic inspired by refined European design. At the heart of the home lies a state-of-the-art chef's kitchen appointed with top-tier appliances, custom cabinetry, and premium finishes - a seamless balance of beauty and functionality. The primary suite is a private sanctuary, featuring a stunning designer walk-in closet, cathedral ceilings and spa-caliber bathroom with heated floors, a soaking Jacuzzi tub, and a separate glass-enclosed shower-creating the ultimate retreat experience. Thoughtfully designed lower level, offers an unparalleled lifestyle experience a professional home theater, gym, recreation room, billiard room, serene meditation space and sauna with the separate access to the backyard. This level provides both luxury and versatility for entertaining or relaxation. This residence features beautiful hardwood floors, radiant heated bathrooms, spacious guest suite on the first floor, 24 Hr. video security system, Sonos sound system, full house humidifier and water filter. Fenced park like backyard, low taxes and convenient location. This is not simply a home - it is a statement of style, comfort, and elevated living.