Loudoun Preservation Society manages the historic plaque program for the town of Leesburg. Owners of historic properties may apply for an historic plaque under one of two categories: architectural significance or historic significance. In addition to meeting the criteria of one of the above categories, the building must possess historic integrity, as evidenced by the survival of physical characteristics that existed during the building's period of significance. The Criteria for Evaluating Applications and the Application Form may be downloaded. For more information, contact LPS.