Landmark: West Chelsea Historic District: Historic District. Regulation type: Status Update Letter. Work types: Occupiable rooftop addition: Buildings in a historic district, Ramps with handrails, Master Plan, Primary Facades: Existing original/historic openings at large residential and commercial buildings, Storefront Infill: Full Replacement, HVAC equipment and other mechanical equipment on rooftops or terraces over primary facades, Removal of Existing Fire Escapes, New awnings - storefronts, Other as described by applicant. Address: 261 11TH AVENUE. Community Board: MN-04. Issued: 2020-01-22. Expires: 2026-01-21. Applicant: Cas Stachelberg. Owner: Robert Lapidus.