12-14 East 64th Street presents an extraordinary opportunity to create a landmark residence in the heart of Manhattan's most prestigious enclave. This rare 40-foot-wide mansion, just off Fifth Avenue, is steps from Central Park and surrounded by the storied elegance of the Upper East Side's Gold Coast. Originally built in 1930 and currently configured as two cooperative buildings, it offers an unparalleled canvas for transformation into one of the city's finest private homes. Spanning 14,400 square feet, the residence provides the perfect foundation for a grand vision. Plans by renowned architect Michael Ingui reimagine the space as a stately mansion with 9+ bedrooms, expansive living and entertaining areas, and the potential for a private indoor pool. A breathtaking rooftop promises sweeping skyline views, offering a rare blend of history and modern luxury. Located in the very heart of New York City's cultural and social epicenter, this residence is moments from world-class museums, Michelin-starred dining, and the finest shopping along Madison and Fifth Avenues. Its unrivaled position offers the perfect balance of privacy and accessibility, placing the best of Manhattan at your doorstep. This is more than a home; it is an opportunity to honor New York's architectural past while creating a timeless masterpiece. A property of this scale and provenance, set in such a revered location, is truly a once-in-a-lifetime offering. All showings and opens houses are by appointment only, please contact us to schedule a viewing.