Incredible opportunity to own a magnificent expanded sprawling split-level home on an oversized flat corner lot that uniquely sits within both the Town of Smithtown and the Town of Huntington, giving you access to all the incredible amenities of both towns including golfing at Dix Hills, swimming at Smithtown Landing, and full use of both Huntington and Smithtown beaches. This home also features a legal first-floor one-bedroom accessory apartment, a large expanded blacktop driveway with paving stone border and front path, two front doors, and a fully fenced yard with slate patio and rear deck. The main house boasts an open floor plan with recessed lighting, gorgeous hardwood floors, a sun-filled formal living room. Chef's kitchen features coffee nook and bar area with bar sink, maple cabinets, granite countertops, tile backsplash, double electric Bosch ovens, Viking cooktop, range hood and warming drawer, Bosch dishwasher, Frigidaire refrigerator, stainless steel sink, a pot and pan drawer, and a decorative maple cabinet exhaust, plus a large glass slider to the rear deck. Beautiful half bath powder room with wood floors and white vanity, a large primary suite and additional spacious bedrooms with ceiling fans, a spotlight hall bath with white vanity, granite countertop and standup tub and shower, and a bonus room/home office on the first floor. The legal accessory apartment with the Town of Huntington includes an enormous living room with six windows, an eat-in kitchen and dining room with hardwood floors and slider to the rear yard, a spacious kitchen with maple cabinets and white appliances including a gas range, and a full bath with glass stand-up shower; the home also offers a partially unfinished basement, a 200-amp electrical panel, and central air conditioning.