The Tribeca West Historic District is a local historic district in the Tribeca neighborhood of Manhattan in New York City. Upon designation on May 7, 1991, by the New York City Landmarks Preservation Commission (LPC), it encompassed 17 blocks and approximately 220 buildings, comprising warehouses, factories, and office towers, mostly dating from 1860 to 1910. Notable buildings within the district include the former New York Mercantile Exchange, and the Powell Building, a Beaux-Arts office tower designed by Carrère and Hastings and built in 1890; and the Tribeca Film Center.