Perched on a coveted Watertown knoll, this stately 1920 Georgian Revival offers a rare combination of timeless elegance, ultimate privacy, and modern luxury-perfectly tailored for both sophisticated entertaining and comfortable everyday living. Nestled on an extraordinary 19,300 sqft lot, this sprawling 4BR/4.5BA estate boasts 4800 sqft of meticulously renovated interior space with striking Boston views. The light-filled main level features high ceilings, rich quarter-sawn hardwoods, crisp architectural millwork, and two inviting fireplaces, creating a warm, inviting atmosphere for gatherings. At the heart of the home is a professional-grade chef's kitchen, complete with a massive over-sized island for casual dining, custom Plato cabinetry, and premium Sub-Zero/Wolf appliances. The upper levels offer incredible flexibility, featuring a stunning primary suite oasis with a private dressing room and secluded deck, alongside a charming 3rd-floor bonus suite-ideal for a casual lounge, home office, or guest retreat. Downstairs, an expansive, fully finished basement provides the perfect footprint for a media room or home gym. Outside, a complete transformation of the grounds has created a private, resort-style backyard paradise. The expanded bluestone terrace connects seamlessly to a custom outdoor kitchen featuring a Blaze natural-gas grill, Big Green Egg, and a cozy natural-gas fireplace. The flat yard features premium engineered turf for year-round recreation, extensive landscape lighting, and a 7-zone irrigation system, all framed by over 30 new trees and beautiful retaining walls for absolute privacy. Complete with two separate driveways and a garage, this complete indoor-outdoor residence offers an unparalleled lifestyle within easy reach of Cambridge and Boston.