No zoning permit for a total demolition of any building or other structure among the designated properties in the Victorian Roxborough area shall be permitted, unless either:
(a) such demolition is necessary to abate an imminently dangerous condition as determined by the Department of Licenses and Inspections; or
(b) a zoning permit for such demolition is obtained in accordance with the provisions of § 14-1005 ("Regulation"), applying the provisions applicable to building permits to such zoning permit as if the designated properties in the Victorian Roxborough area constituted, collectively, a designated historic district.