Paragraph 4

If the development was initiated in pursuance of planning permission granted subject to conditions, paragraph 2 of this Schedule shall apply as if the reference to the granting of permission unconditionally were a reference to the granting of permission subject to the like conditions.

If the permission referred to in the preceding sub-paragraph was granted subject to conditions which consisted of, or included, a requirement expressed by reference to a specified period, the reference in that sub-paragraph to the like conditions shall be construed, in relation to the condition imposing that requirement, as a reference to a condition imposing the like requirement in respect of a period of like duration beginning at the time in question.