The Harriet M. Spraker Mansion, 14 East 73rd Street, is a historic single-family townhouse on a tree-lined block in Manhattan’s prestigious Upper East Side. This five-story Neo-Renaissance gem, built in 1896, offers over 9,505 square feet of living space with ceiling heights ranging from 10’ to 12’ throughout, creating an airy, grand atmosphere. The property features historic details, showcasing the architectural splendor of its era, most notably an original English Oak Staircase that serves as a stunning centerpiece. The mansion presents an exceptional opportunity for conversion into a grand single-family residence. The existing layout allows for a seamless transformation into a modern townhouse, capitalizing on the property’s expansive square footage, architectural integrity, and period charm while offering the potential to incorporate contemporary amenities. The mansion is presently configured as a multifamily residence with eight units spread across its five stories with an elevator servicing each level of the townhouse – a rarity for a building of this period. This layout showcases the versatility of the space, accommodating multiple residences while maintaining the building’s historic character.