This subchapter applies to a dwelling the initial construction of which was commenced on or after December 1, 1978, except as follows:

   (1)   Section 101.645 applies to a dwelling the initial construction of which was commenced before, on or after May 23, 1978.

   (1m)   Section 101.647 applies to a dwelling the initial construction of which was commenced before, on, or after February 1, 2011.

   (2)   Section 101.653 applies to a dwelling the initial construction of which was commenced on or after May 16, 1992.

   (3)   Sections 101.65 (1m) and (1r) and 101.654 apply to an application for a building permit filed on or after April 1, 1995, to perform work on a dwelling the initial construction of which was commenced before, on or after December 1, 1978.