9(1)This paragraph applies in the case of a building to which work remains to be done which is customarily done to a building of the type in question after the building has been substantially completed.E+W
(2)It shall be assumed for the purposes of this Schedule that the building has been or can reasonably be expected to be completed at the end of such period beginning with the date of its completion apart from the work as is reasonably required for carrying out the work.