20 East End Avenue 10-A Available July 15th or August 1st. Located in one of Manhattan's most exclusive and serene enclaves, Residence 10A is a beautifully customized 3 or 4 bedroom, 4.5 bath home offering 3, 043 square feet of grandly scaled living space. Designed by Robert A.M. Stern and thoughtfully upgraded, the apartment features soaring 11-foot ceilings, triple exposures to the east, north, and west, and partial East River views from every east-facing window. A semi-private elevator landing opens to a gracious entry gallery with a powder room. The 30-foot great room is anchored by a stunning bay window framing river views, while the adjacent formal dining room has been opened to create exceptional light and flow throughout the entertaining spaces. One of the home's most appealing features is its highly flexible layout, which can function beautifully as either a sprawling 3-bedroom residence with a library/media room or a true 4-bedroom. The west-facing fourth bedroom is currently configured as a library/den with custom built-ins and an en-suite bath, making it ideal as a home office, media room, guest suite, playroom, or additional bedroom. Sharing a span with the great room, it enjoys wonderful natural light throughout the day. The windowed chef's kitchen is outfitted with a center island, Brazilian quartzite countertops, Gaggenau appliances, custom shaker cabinetry, and a full butler's pantry complete with wine refrigerator and laundry. Three additional bedrooms are positioned in separate corners of the home, providing exceptional privacy. The primary suite enjoys river views, an oversized walk-in closet, and a luxurious five-fixture marble bath with radiant heated floors, soaking tub, glass-enclosed shower, and double vanity. Each secondary bedroom features an en-suite bath and open northern or western views. Additional features include wide-plank Appalachian oak floors, multi-zone HVAC, a full Savant and Lutron smart home system, built-in speakers throughout, electric shades, and extensive custom millwork. Residents of 20 East End Avenue enjoy one of the Upper East Side's most distinguished full-service condominium buildings. Built in 2017 and inspired by the grand prewar apartment houses of the 1920s, the building offers white-glove service and an exceptional amenity package, including a gated porte-coch re, 24-hour doorman and concierge, state-of-the-art fitness center with boxing studio, spa with sauna and steam room, resident library, parlour lounge, wine cellar with tasting room, and a beautifully programmed children's playroom. East End Avenue offers a peaceful, almost suburban atmosphere while remaining moments from everything Manhattan has to offer. Carl Schurz Park, John Jay Park, and the East River Promenade are just blocks away. Some of New York City's best schools are nearby, while the Second Avenue Subway, FDR Drive, and LaGuardia Airport provide exceptional convenience for commuting and travel.