Estate Sale of an Enormous Pre-War 4-Bedroom Residence This is the first offering of an extraordinary, sunlit, and elegant pre-World War I four-bedroom home filled with historic charm. With soaring 10-foot ceilings, abundant natural light, and unobstructed views, the classic layout seamlessly blends comfortable everyday living with effortless entertaining. A semi-private landing welcomes you into a grand formal entry foyer leading to spacious, side-by-side living and dining rooms. Residence 3A is rich in pre-war details, including quarter-sawn oak herringbone floors, original decorative fireplace mantels, French doors, and intricate crown and baseboard moldings. The expansive windowed kitchen features a generous dining area and a butler's pantry. A private bedroom wing, separated by a long hallway ideal for displaying artwork, offers quiet retreat spaces, while ample closets are found throughout. Located on a peaceful, tree-lined double-wide block in the heart of the Upper West Side, The Royal Summit was designed in 1915 by renowned architects Mulliken and Moeller and incorporated as a cooperative in 1981. This full-service building is known for its stunning, ornate lobby and houses approximately 67 residences across two adjoining structures (310 and 320 West 86th Street), ensuring privacy and intimacy. The pet-friendly co-op is impeccably maintained and offers 24-hour doorman service, a live-in superintendent, porters, and additional staff. Amenities include storage, a bike room, central laundry facilities, and a serene residents patio garden. Just steps from Riverside Park on a landmarked block free of city bus traffic, this home provides access to dog runs, jogging and biking trails, and the Hudson River Waterfront Greenway. Nearby dining, shopping, and cultural destinations are easily accessible, along with the 1, B, and C subway lines and the 86th Street crosstown bus. Though tranquil and serene, it's just one block from Broadway and the convenience of city life.