This beautiful corner residence combines classic prewar charm with modern functionality, offering an exceptional three-bedroom layout rarely available in the building. Originally designed with a formal dining room, the space has been smartly reimagined to create a generous third bedroom-perfect for guests, a home office, or a growing household-without sacrificing the apartment's sense of openness and flow. Sunlight streams through oversized windows, accentuating the high ceilings, new hardwood floors, and elegant architectural details throughout. The expansive great room provides an inviting setting for both relaxation and entertaining, while also offering space for a large dining room table enough to seat ten. The thoughtfully designed kitchen features premium appliances, abundant cabinetry, and a functional layout for everyday cooking. Each bedroom is well-proportioned, with ample closet space and flexibility of use. The primary suite is large enough to fit a desk in addition to a king size bed. Designed by Emery Roth, built in 1959, 166 East 63rd is  a well-maintained condo, residents enjoy a welcoming lobby, attentive staff, and proximity to top neighborhood amenities, transportation, and green spaces. Some of the images have been virtually staged.