Historic Preservation Districts may be established for the purposes stated in title 9, chapter 3 of this Code, in accordance with the requirements and procedures established therein, and shall constitute an overlay district or dual zoning classification with the underlying residential or business classification for the property so designated, pursuant to subsection 9-3-1A of this Code. The zoning classification of any property in a Historic District shall be designated by adding "H" to the designated zoning classification. The provisions of subsections 9-3-2B and C of this Code shall be enforced as if fully set forth in this title. (Ord. 01-18, 12-4-2001)