Notwithstanding the provisions of Subsection B hereof, any development, alteration or improvement of property shown on a site plan approved by the Planning Board prior to August 1, 2003, for which the approved work has not yet been completed prior to December 19, 2003, shall comply with the provisions of §§ 170-14, 170-15.2, 170-17.1Q, 170-17.2A, 170-17.2B(11), 170-17.2B(14), 170-17.2B(15), 170-17.2B(19), 170-17.2C(5), 170-17.2C(6), 170-17.2C(7), 170-17.2C(9), 170-17.2C(10), 170-17.2C(11), 170-17.2C(13), 170-17.2D, 170-17.2E and 170-18.1 and the requirement concerning documentation of existing building coverage and gross floor area of any building to be demolished as set forth in § 170-18.4 of this chapter.