Welcome to Residence 5B at 177 East 77th Street-a rare opportunity to own an oversized, sun-filled one-bedroom condominium on one of the Upper East Side's most coveted tree-lined blocks. Bathed in southern light throughout the day, this beautifully proportioned residence combines classic prewar Art Deco charm with exceptional scale and functionality. The expansive living room and oversized primary bedroom are highlighted by elegant curved bay windows, creating an airy, inviting atmosphere while framing tranquil neighborhood views. A spacious private terrace extends from the living room, providing the perfect setting for morning coffee, outdoor dining, or quiet evenings, and is visible from both the bedroom and the windowed kitchen. Every room has been thoughtfully designed with generous proportions, including a gracious entry foyer, abundant closet space, high ceilings, and oversized windows that maximize natural light. Both the kitchen and bathroom feature windows, and with condominium approval, the apartment can accommodate an in-unit washer and dryer. Move-in ready while offering tremendous potential to personalize over time, Residence 5B is the ideal home for buyers seeking the rare combination of prewar elegance, outdoor space, exceptional light, and outstanding proportions. 177 East 77th Street is a distinguished full-service Art Deco condominium perfectly positioned midblock on one of the most desirable streets in the Upper East Side. Residents enjoy a full-time doorman, live-in superintendent, beautifully landscaped courtyard garden, bike storage, private storage, and central laundry facilities. Just moments from Central Park, Madison Avenue boutiques, acclaimed restaurants, neighborhood cafés, gourmet markets, and both the 6 and Q subway lines, the location offers the very best of Upper East Side living with unmatched convenience. Finding a one-bedroom that truly checks every box is exceptionally rare. Residence 5B delivers oversized living spaces, soaring ceilings, beautiful bay windows, abundant sunlight, a private terrace, a windowed kitchen and bath, white-glove service, and one of Manhattan's most sought-after addresses-all in one extraordinary home.