The data set identifies the four towns-administered Historic Districts within Loudoun County. The Town-designated districts include the Historic Middleburg District, the Purcellville Historic Corridor Overlay District, and two districts in Leesburg - the Leesburg Old and Historic District and the Leesburg H-2 Corridor District. The Historic Middleburg District is subject to Town of Middelburg Zoning Ordinance, Article XVII. The Purcellville Historic Corridor Overlay District is subject to the Town of Purcellville Zoning Ordinance, Article 14A. The Leesburg Old and Historic District and the Leesburg H-2 Corridor District are subject to Town of Leesburg Zoning Ordinance, Article 7, Sections 7.5 and 7.6, respectively. Each Town-designated historic district is administered by their related Planning Departments.