Located in the highly desirable Hamlet of Sayville, this exceptional 4-bedroom, 3.5-bath Post Modern home was custom built by the builder himself, with quality craftsmanship and thoughtful details throughout. Featuring an impressive array of upgrades, this beautiful home also includes a studio accessory apartment with kitchenette and separate entrance, offering wonderful flexibility for guests, extended living, or additional space.The main residence welcomes you with a dramatic two-story entry foyer, complete with a second-level overlook, and beautiful oak flooring throughout. The spacious 9-foot ceilings add to the home's open and airy feel. The formal living room features a fireplace, while the elegant formal dining room leads to a cozy sunroom through French doors. The sunroom is a true standout, featuring a tin ceiling, brick flooring, and Vermont Castings stove, creating a warm and inviting space for year-round enjoyment. The upgraded chef's kitchen is designed for both entertaining and everyday living, featuring premium Bosch and Viking appliances, custom cabinetry with soft-close features, under-cabinet lighting, and beautiful quartzite countertops. The kitchen overlooks the brick patio and beautifully private backyard, creating an ideal setting for indoor-outdoor entertaining. The primary ensuite offers a peaceful retreat with a walk-in closet, a beautiful bath with soaking tub, and vaulted ceilings. With its custom construction, quality finishes, versatile accessory apartment, private outdoor space, and desirable Sayville location, this is a home that truly needs to be seen to be appreciated. Too much to list! Please see attached feature sheet and additional information for all the exceptional details this property has to offer.