Welcome to 1644 Coates Avenue - Built in 2018! Located in the desirable Sachem School District, this beautifully upgraded home sits on just under a half-acre and offers over 2,000 sq ft of comfortable living space. Conveniently close to the LIE, public transportation, shopping, restaurants, and more-your daily commute and errands are a breeze! This move-in-ready home features 4 spacious bedrooms, 2.5 baths, a formal dining room, and an open-concept kitchen/family room with a large island, granite countertops, brand new stainless steel refrigerator, custom cabinets, stainless steel appliances, walk-in pantry, 9ft ceilings with recessed lighting. Laundry Room with Brand New Washer & Dryer. Upstairs, the primary suite features a full en-suite bath with a double sink and walk-in closets, along with 3 additional generously sized bedrooms and another full bath.The main level also includes gleaming hardwood floors, crown moldings and a cozy fireplace for those cold winter nights. The full finished basement adds versatile space for work or play, and the 2-car garage includes a Tesla charging station. The 4-car driveway offers plenty of room for guests. Step outside to your private backyard oasis-designed for resort-style living! Enjoy the gated heated saltwater pool with LED lighting and a LoopLoc cover, paver patio, basketball court, and a custom-built outdoor bar with a kegerator, mini-fridge, bar stools,TV, and surround sound. This fully fenced yard has an 11-zone in-ground sprinklers and WiFi-connected security system to complete the package. This home is truly an entertainer's dream-indoors and out!