45 Christopher Street is a residential building facing south onto Christopher Park in the Greenwich Village Historic District on the west side of lower Manhattan in New York City.It was built by the developer brothers Bing & Bing with the architectural firm of Boak and Paris. Russell M. Boak and Hyman F. Paris left the architectural firm of Emery Roth to start their own practice in 1927.The building was granted an occupancy license on July 17, 1931.