The crown jewel of JER Carpenter’s distinguished 14 East 90th Street, Penthouse West is a historic offering, an iconic piece of Carnegie Hill’s real estate legacy. With exposures on all sides, windows in every room, and a wrap-around terrace, Penthouse West offers front row views of Central Park and the Jacqueline Onassis Reservoir; the architecture of the west side; and the New York City skyline as it can only be seen from Carnegie Hill. The residence includes 3,100 square feet of interior space, with 10-foot ceilings throughout, and a private terrace of over 2,000 square feet wrapping the entire circumference of the home. With endless gallery walls for showcasing art, natural light from all sides gracing the home all day, and a view that inspires, this is a prodigious home, the zenith of what Carnegie Hill has to offer. Entering the home from the private vestibule, large windows – the first of dozens in the home – illuminate the oversized foyer. Already one gets a sense of the penthouse. To the north is the library, where a wood burning fireplace and pre-war details imbue the room with a sense of its provenance. There is a home theater system hidden behind this wood paneling. The first access to the terrace is through here as well, where french doors lead to incredible northern views. Just east of the library is the formal living room, which offers another wood burning fireplace and further access to the terrace via another set of french doors. In classic Upper East Side style, each room is separated from the next, yet the size of the rooms – the living room is 25’ wide – plus the openness of the corridors and the connectivity of the terrace creates an unusually smooth flow. Heading south from the foyer is the formal dining room graced with natural light from its eastern-facing window. Separating the dining room and the kitchen is a serving pantry, with a row of millwork for storing fine dishware, a wine fridge, and a farm sink, allowing easy access for sit-down dining. The windowed kitchen faces south into the greenhouse, and is well appointed with a vented range, Miele appliances, and an onyx backsplash. Light pours into the kitchen both from the south and from the breakfast room to the west. The principal bedroom suite is on the northwest corner of the home, abutted on one side by floor-to-ceiling windows and french doors leading to the terrace on another. With a west-facing bay window looking directly over the park, right across to the El Dorado, the principal suite commands attention. Two closets, one of which is a large walk-in crafted with blond burl wood and containing a custom Traum safe, provide plenty of personal storage. There are also built-in shelves for more storage. The en-suite bathroom is spacious and includes a jacuzzi tub, a steam shower, a north-facing window, and is finished with onyx throughout. Two additional bedroom suites, sharing a large bathroom, each face west. Both have generous closet space, one of which includes a cedar walk-in closet, and oversized windows. The middle bedroom also includes french doors leading to the terrace. The home is outfitted with central air conditioning and updated plumbing fixtures. The windows have all been UV treated for safe conservation of art. There are many closets throughout the apartment, as well as a dedicated staff room. A washer and dryer, and two powder rooms, complete the home. 14 East 90th Street is a white-glove, pre-war cooperative with the height of New York culture, like Cooper Hewitt and The Guggenheim, right at your doorstep. The service is, as expected, impeccable, between the concierge, the doorman, and the live-in super. Additional amenities include a gym and a bike room. Pets are allowed, and the apartment transfers with a storage unit. The building permits 50% financing. Co-exclusive with Susan Penzner Real Estate.