Rare opportunity to create a 32' wide, single family mansion on a prime Upper East Side block. 45-47 East 63rd Street are two five story townhouses situated on a beautiful tree-lined block conveniently located steps from the highly desired Central Park and some of the city's most renowned retailers and restaurants.    These townhouses, built in 1884 to designs by architect Thom & Wilson, offer 32' of width and 10,655 sq. ft. (approx.). A purchaser has the potential to create a home offering generous room sizes, two entrances, an elevator and multiple outdoor spaces.    Currently configured as two adjoining townhouses. Delivered vacant.