Where plans of any proposed work have, in accordance with building byelaws, been deposited with a local authority, and either the plans have been passed by the authority or notice of rejection of the plans has not been given within the prescribed period from the deposit thereof, and the work to which the plans relate has not been commenced—
the local authority may, at any time before the work is commenced, by notice to the person by whom or on whose behalf the plans were deposited, or other the owner for the time being of the land to which the plans relate, declare that the deposit of the plans shall be of no effect, and when such a notice is given, this Act and the byelaws made thereunder shall as respects the proposed work have effect as if no plans had been deposited.
Nothing in this Act or in any repeal effected thereby shall affect the operation of section fifteen of the Public Health Acts Amendment Act, 1907, or of any corresponding provision in a local Act, as regards plans deposited before the commencement of this Act.
Where plans of any proposed work have been passed by a local authority before the date of the commencement of this Act, but the work has not been commenced before that date, the authority shall before the expiration of six months from that date give notice of the provisions of this section to the person by whom or on whose behalf the plans were deposited, or other the owner for the time being of the lands to which the plans relate.