Discover unparalleled space and opportunity in this extraordinary home with an accessory apartment nestled in the heart of Deer Park, NY. Boasting over 3,400 sqft of living space, complemented by a full unfinished basement, this home invites endless potential. The first-floor apartment offers 4 bedrooms and 3 bathrooms, while the second-floor apartment features 3 bedrooms, 2 bathrooms, and a sprawling office space. With a vast lot spanning over 10,000 sqft, an attached garage, and abundant driveway parking, this property presents a rare blend of size, convenience, and versatility, perfect for those seeking a spacious and adaptable living environment.