276-property proposed extension shares developments history, scale and architecture with existing historic district.  On July 21, 2015, the Landmarks Preservation Commission held a hearing on a possible extension to the 1971-designated Mount Morris Park Historic District . The extension is composed of 276 properties and lies east of Lenox Avenue, between 117th and 124th Streets. The extension shares its development history with the existing historic district as one of the first residential areas in Harlem, … <Read More>