The expansion, remodeling, or reconstruction of such homes shall be subject to approval of and regulation by the Secretary. No expansion, remodeling, or reconstruction may increase the height of structure or result in an increase of more than 25 percent of the sum of the exterior dimensions of a structure as it existed on
May 17, 1990. Any expansion, remodeling, or reconstruction shall be consistent with the criteria developed pursuant to
section 460aaa–6(b)(4) of this title and shall be subject to such other terms and conditions as the Secretary may prescribe.