Nestled in the prestigious Chestnut Hill Estate Section of Upper Brookville and overlooking the esteemed Mill River Golf Club, this extraordinary oasis offers unparalleled luxury and sophistication. This magnificent home boasts 7 bedrooms and 13 bathrooms, Spanning nearly 11,000 square feet of pure luxury and set on over 5.25 acres of meticulously landscaped grounds with specimen trees and plantings, this residence epitomizes elegance and grandeur. A double-height entry foyer creates a dramatic entrance, providing a stunning view of the indoor pool upon arrival. The expansive gourmet chef's kitchen features dual center islands, custom cabinetry, and top-of-the-line appliances. The grand formal dining room comfortably seats 14, making it ideal for lavish gatherings. The deluxe primary suite is a serene retreat with views of the indoor pool and offers dual en-suite bathrooms and expansive walk-in closets. A sophisticated library, perfect for a home office, also offers pool views, and features a warm fireplace, high ceilings, rich mahogany detailing, and a spiral staircase leading to the lower level. Inside, unparalleled amenities include a fitness center and world class spa with a sauna, steam and massage room, a state-of-the-art home theater, bowling alley and a billiard room, ensuring endless entertainment options. Outside, enjoy the outdoor pool with a relaxing waterfall feature and a private tennis court. Designed for grand-scale entertaining, this estate offers expansive living areas and outdoor terraces perfect for hosting memorable gatherings. Security and privacy are paramount, with a gated entrance and advanced security systems. Warm and inviting yet grand and impressive, this exceptional estate offers the epitome of luxury living in an exclusive Upper Brookville sanctuary. Experience unmatched sophistication and elegance in this one-of-a-kind property.