This high-floor residence is currently configured as a three-bedroom, two-bath home and may be seamlessly combined with the adjoining one-bedroom, one-bath apartment to create a spacious four-bedroom, three-bath corner residence with approximately 2,175 square feet of thoughtfully designed living space. Two generous terraces—one welcoming sunrise to the east, the other capturing glowing sunsets to the west—fill the home with light throughout the day. The expansive living room, framed by dramatic southwest-facing atrium windows, offers an inviting setting for relaxing or entertaining. A dedicated dining area enhances the natural flow, while the east-facing bedrooms enjoy peaceful morning light. The kitchen presents an opportunity to be customized into your ideal culinary space, and the split-bedroom layout ensures privacy and versatility. The primary suite is a private retreat featuring a dressing area, custom closets, an en suite bath, and direct access to the large east terrace. The second bedroom, complete with built-ins, easily accommodates a queen-size bed and desk, while the third bedroom or home office receives warm afternoon light. A chic second bath with glass shower sits conveniently off the hallway. Additional features include oak hardwood floors, abundant closet space, an in-unit washer/dryer, remarkable storage, and two deeded storage units. The combination of the A and B lines at Le Trianon is both popular and practical, offering an ideal four-bedroom configuration. The B-line’s oversized living room, bedroom, large west-facing terrace, and full bath can easily be integrated into the main residence or maintained as a private guest suite. Le Trianon offers premier condominium living with a 24-hour doorman and concierge, a new fitness center, landscaped garden plaza, playroom, bike room, and additional storage. An exceptional opportunity to create a custom home in one of the Upper East Side’s most desirable full-service condominiums.