Back on the market! Don't miss this opportunity to own and put your stamp on an elegant classic-six in a sought-after building smack-dab in the middle of Carnegie Hill. Residence 6D introduces itself with a large and stately foyer and coat closet off your semi-private, locked landing. The formal dining room greets you to your left with additional closet space for full scale entertaining and beautiful fixtures. Enter the windowed galley kitchen through a proper butler's pantry with original glass front cabinets and hardware. The kitchen is long with tons of cupboards, high ceilings and room for a table and chairs to have your morning coffee in front of the window. Beyond the kitchen, you will find a service door, where trash is removed and deliveries arrive, and a third bedroom, home gym, or office that is replete with washer/dryer and a half bath. The current configuration can be adjusted to move the W/D and allow for an additional closet (take a look at the alternate floor plan). The formal living room is traditional and spacious with original crown moldings, beamed ceilings, hardwood floors, and a coveted wood burning fireplace. The building allows through the wall air conditioners. The West facing window looks out onto the Cooper Hewitt Museum with its fabulous faade and roof, and nightly sunset skies complete your view. The owner's bedroom is well-sized and well-appointed with generous closet space and more western light. It inhabits its own corner with no adjoining apartments. The second bedroom is also bright, albeit internal, and has a multitude of closet space. There are two original subway tiled and windowed baths, one of which is en-suite. 21 East 90th St boasts a beautiful location on a tree lined street just a block from the entrance to Central Park and Engineers gate. On your way, you can stop at the garden at the Cooper Hewittone of the few private enclosed green spaces in Manhattan. A full-time doorman, live-in super, storage that transfers with the apartment, and bike room rounds out the full-service nature of the building. In addition to all this, pets and pied--terres are welcome! The surrounding streets boast lots of well-known and neighborhood eateries, both public and private schools and all the groceries you could want, including Westside Market and Whole Foods. Transportation includes the 4,5,6-trains along with the new Q-train at 86th and 2nd. Additionally, the Madison Ave and Fifth Avenue buses take you downtown and back up swiftly. Come see what living in the heart of Carnegie Hill has to offer!