New York City’s architectural character is defined by its historic buildings and neighborhoods, many of which are protected by the Landmarks Preservation Commission (LPC). Property owners of designated landmark buildings or those located within historic districts must comply with LPC regulations when performing any exterior work, including façade restoration, window replacement, roofing, or alterations visible from a public way. Compliance typically requires:

  • LPC review and approval before work begins, through either staff-level permits or full commission hearings.
  • Ensuring that repairs, restorations, or alterations use appropriate materials, details, and methods that preserve historic character.
  • Balancing modern needs—such as energy efficiency, accessibility, and safety—with the requirement to maintain historic integrity.

At ROCK Architecture and Engineering, we bring expertise in navigating the LPC process, from preparing permit applications to designing sensitive, code-compliant solutions. Our goal is to help owners protect their investments, meet regulatory requirements, and celebrate New York City’s architectural heritage.