17Where, before the commencement of Part V of this Act an application has been made for consent under a building preservation order for any works, any proceedings pending at the commencement of Part V of this Act and arising out of the application (including any appeal) may be continued and disposed of under and in accordance with the provisions of Part V of this Act corresponding to provisions of the building preservation order as to the making of applications, the decision of the local planning authority thereon and appeals to the Secretary of State against the said decision.