The Landmarks Preservation Commission (LPC) is the largest municipal preservation agency in the nation. It is responsible for protecting New York City's architecturally, historically, and culturally significant buildings and sites by granting them landmark or historic district status, and regulating them once they're designated.
The agency is comprised of a panel of 11 commissioners who are appointed by the Mayor and supported by a staff of approximately 67 preservationists, researchers, architects, historians, attorneys, archaeologists and administrative employees.
There are more than 31,000 landmark properties in New York City, most of which are located in 111 historic districts and 20 historic district extensions in all five boroughs. The total number of protected sites also includes 1,338 individual landmarks, 117 interior landmarks and 10 scenic landmarks.