3. Cancellation of planning permission granted under the Singapore Improvement Ordinance

Notwithstanding the provisions of any other written law, any permission granted before 1st February 1960 under section 61 of the Singapore Improvement Ordinance [1955 Ed., Cap. 259] which involves the erection of a building shall be cancelled with effect from the date of commencement of this Act if no construction work pertaining to the erection of the building has been commenced before that date.

Any person who claims to have commenced any work pertaining to the erection of a building shall have the onus of proving that he has commenced such work.