St. Louis Landmark is a designation of the Board of Aldermen of the City of St. Louis for historic buildings and other sites in St. Louis, Missouri, United States. Listed sites are selected after meeting a combination of criteria, such as whether the site is a cultural resource, near a cultural resource, or contributes in aggregate to the city as a cultural resource. Once a site is designated as a landmark, it is subject to the St. Louis Preservation Board, which requires that any alterations beyond routine maintenance, up to and including demolition, must have permits that are reviewed by the Board. Many St. Louis Landmarks are also listed on the National Register of Historic Places, providing federal tax support for preservation, and some are further designated National Historic Landmarks, providing additional federal oversight.
The Mayor appoints an eight member Preservation Board to develop recommendations for landmark status in the city, which are then presented to and voted upon by the Board of Aldermen. Recommendations are made based on petitions submitted to the Preservation Board by property owners, city aldermen, or the St. Louis City Cultural Resources Office (on behalf of the Preservation Board itself). The Preservation Board determines if a property is a cultural resource (and therefore is eligible for landmark status) based on whether it
However, Landmark property owned or controlled by the St. Louis Public Library, the St. Louis City Board of Education, Missouri or the United States government, or formerly owned or controlled by the former Art Museum Board of Control is exempt from the Preservation Board's authority.
Several St. Louis Landmarks have been designated with National Historic Landmark status by the United States Secretary of the Interior for historical significance. All of those and a number of other districts, sites, buildings, structures, and objects worthy of preservation have been listed on the National Register of Historic Places. Not all St. Louis Landmarks have been listed on the National Register, and not all sites listed as National Historic Landmarks or listed on the National Register have been listed as St. Louis Landmarks. Additionally, St. Louis is home to the Jefferson National Expansion Memorial (classed as a National Memorial) and Ulysses S. Grant National Historic Site (classed as a National Historic Site), neither of which are listed as St. Louis Landmarks.