Rules & Licenses · New York City
Manhattan Landmark Work Starts With LPC
Manhattan owners and tenants in landmark buildings should check LPC before exterior work, storefront changes, or visible repairs begin.
Published June 23, 2026 · Last verified June 23, 2026
In Manhattan, a simple exterior change can become an LPC question. The Landmarks Law requires permits before work that affects the exterior of a designated landmark property. Some interior work can also require review. Owners and project representatives, including architects, commercial tenants, and consultants, apply before work starts.
LPC says applications are filed through Portico. Staff decide which permit type is needed after review.
Before changing windows, signs, storefronts, doors, railings, or facade material, check landmark status and the LPC route.
Keep the property address, landmark-status result, work description, drawings, Portico application, and LPC response together. Do not start covered exterior or interior work until LPC has reviewed the application and identified the permit type.