Welcome to this custom built, one-of-a-kind home nestled on a beautiful 1 acre property in the Hauppauge School District. Thoughtfully designed and meticulously maintained, this 29 year young residence offers exceptional space, flexibility and quality craftsmanship throughout. The main residence features 3 bedrooms and 2.5 baths, including a luxurious first floor primary suite with soaring cathedral ceilings, generous closet space and a private en-suite bath. The main level also offers the convenience of a laundry room, an inviting layout ideal for everyday living and entertaining, and a spacious foyer. Upstairs includes an open upper landing overlooking the main living area, two additional bedrooms and a full bathroom. The legal, family-use accessory apartment offers its own private entrance and dedicated parking, complete with oversized egress windows that fill the space with natural light. Featuring a full kitchen and comfortable living quarters, it provides the perfect setup for extended family and guests. Outdoor living is just as impressive, with a multi-level Trex deck overlooking an expansive, manicured backyard with in-ground sprinkler system, and plenty of room to enjoy the privacy of a full acre. Three garages provide abundant parking and storage space. This truly unique property combines timeless design, modern convenience and incredible versatility all in desirable Hauppauge. A rare opportunity not to be missed! Oh! And the icing on the cake? It's a HORSE PROPERTY! As per Town of Islip code section 12-27(1), this property is zoned for up to two horses, ponies or equine livestock.