RARE OFFERING - Welcome to 3 Sentry Hill, a timeless York Harbor treasure lovingly improved over the past 28 years to create both an intimate retreat and an entertainer's dream. The inviting wraparound porch sets the tone for gracious coastal living. Inside, the chef's kitchen is a true showpieceâ€'featuring a 10-foot granite island, six-burner Wolf range with griddle, double dishwashers, two refrigerators, abundant cabinetry, and a sunny breakfast nook. A spacious dining room and charming butler's pantry with wine fridge and bar sink make hosting effortless. Gleaming wood floors and stylish finishes featured throughout the entire home. Flowing from the kitchen, a cozy living room with propane fireplace and convenient powder room leads to the family room, highlighted by a stunning built-in bookcase and elegant mantel. Step onto the screened porch to take in serene views of the beautifully landscaped one-acre grounds framed by classic stone walls. Upstairs, five spacious bedrooms include a luxurious primary suite with generous closets, tiled shower, soaking tub, double sinks, and towel warmer and two additional en-suite bedrooms as well. A carriage-house style garage, built just ten years ago, offers three extra-deep bays and a full walk-up second levelâ€'ideal for storage, hobbies, or future expansion. This rare York Harbor haven blends character, craftsmanship, and comfortâ€'truly a home not to be missed!