Light. Space. Terrace. Location. This exceptional one-bedroom, one-and-a-half-bath corner residence with MASSIVE terrace offers rare scale, light, and flexibility in a full-service Upper East Side co-op. A versatile den area provides the perfect space for a home office, guest area, or media room. The home's standout feature is the extraordinary full-length terrace (over 10 by 26 feet!) - a sun-filled outdoor retreat ideal for entertaining, relaxing, and enjoying open skyline views. Outdoor space of this magnitude is seldom found in the neighborhood. The spacious living area flows seamlessly to the terrace, creating effortless indoor-outdoor living. While the kitchen offers an opportunity for customization, the baths are well-appointed and move-in ready. The Eastbrook is a full-service building on a charming tree-lined street, featuring a roof deck, updated elevators and laundry, live-in superintendent, and 24-hour doorman. With no flip tax and flexible policies permitting co-purchasing, guarantors, pieds-à-terre, subletting, pets, and up to 80% financing, this is a rare chance to own a bright, spacious home with truly exceptional outdoor space in one of Manhattan's most desirable neighborhoods