Sun-flooded penthouse duplex condominium with three private outdoor spaces, including a sprawling second-floor terrace measuring thirty-eight feet by ten feet seven inches, overlooking the New York City skyline! Currently configured as a spacious three-bedroom, three and one-half bathroom residence, this exceptional home offers dramatic skyline views from nearly every room and the flexibility to create a fourth bedroom and den. Enter through the lower level into a gracious foyer with a coat closet, where you are immediately greeted by beautiful western light and sweeping south- and west-facing views from the expansive double-length living room measuring twenty-nine feet two inches by twenty feet five inches. The living room is ideal for both entertaining and relaxing, complete with a chic bar area and striking views of the cityscape. The serene primary suite features its own private balcony and an en-suite five-fixture bathroom. Also on this level are two additional generously sized east-facing bedrooms—one with its own balcony—along with two full bathrooms, ample closet space, and an in-unit washer and dryer. Upstairs, accessible via a stunning curved staircase or an internal elevator, the home opens into a spectacular second great room and dining area. The dining room/sunroom is surrounded by dramatic greenhouse-style windows that flood the space with natural light. The large windowed kitchen sits adjacent to the den area, and a convenient powder room completes this level. Through elegant French doors lies the extraordinary thirty-eight feet by ten feet seven inches terrace, offering abundant space for outdoor seating, dining, and entertaining, all set against sweeping views of the New York City skyline stretching south to Billionaires' Row. LeTrianon Condominium is an exceptional full-service building featuring a full-time doorman, live-in superintendent, expansive newly renovated fitness center, children's playroom, resident lounge, and a beautifully landscaped garden. Ideally located in the heart of the Upper East Side, residents enjoy convenient access to excellent transportation, restaurants, boutiques, and park options. Please note there is a transfer fee equal to four months of common charges paid by the buyer. Taxes for limited liability company or pied-à-terre owners are $5,129.09.