Welcome to Residence 4D at 400 East 90th Street, a beautifully maintained and exceptionally spacious 476-square-foot studio in one of the Upper East Side's most sought-after full-service condominium buildings. This bright and airy home features a thoughtfully designed layout with oversized windows, hardwood parquet floors, generous living and sleeping areas, and excellent closet space. The separate windowed kitchen is equipped with stainless steel appliances, granite countertops, abundant cabinetry, and ample workspace. The renovated bathroom offers clean, timeless finishes and a deep soaking tub. The expansive living area easily accommodates separate spaces for living, dining, and sleeping, creating a comfortable and functional home. Large windows provide excellent natural light while offering peaceful city views. Residents enjoy an exceptional collection of amenities including: 24-Hour Doorman and Concierge Live-In Resident Manager State-of-the-Art Fitness Center Sauna and Steam Rooms Private Cinema/Screening Room Business Center Conference Room Playroom Laundry Facilities Bicycle Storage Private Storage Available Luggage Storage Room Two Landscaped Roof Decks with CityViews Beautifully Maintained Common Areas Located in the heart of the Upper East Side, moments from Carl Schurz Park, the East River Promenade, Whole Foods, Fairway, Asphalt Green, top restaurants, shopping, and multiple transportation options, this residence offers the perfect combination of comfort, convenience, and full-service luxury. Whether you're looking for a primary residence, pied-à-terre, or investment opportunity, Unit 4D presents exceptional value in a premier Upper East Side condominium. All pictures are virtually staged