7Work begun or contracted for before commencement of Act
(1)There shall be exempt from control under this Act any work done in the construction or alteration of a building or of any works if—
(a)the construction or alteration was begun before 28th July 1965; or
(b)a contract for the work in question, or for other work in the construction or alteration, was made before that date.
(2)Work shall not be exempt from control by virtue of paragraph (a) of subsection (1) of this section if the construction or alteration has been interrupted for a continuous period of twelve months or more.
(3)Nothing in subsection (1) of this section shall be taken as conferring any exemption on work in respect of a building or any works by reason only that the construction of any ancillary works for the building or works in question was begun, or that a contract for work in the construction of such ancillary works was made, before the date mentioned in that subsection ; but where work done in the construction or alteration of a building or of any works is exempt from control by virtue of that subsection there shall also be exempt from control by virtue of that subsection any work done in the construction of any ancillary works required for that building or those works.
(4)There shall be exempt from control under this Act any work which has been approved in writing by the Minister before the commencement of this Act.