Separation of applications. A developer whose proposed development requires a variance or direction of the issuance of a permit may elect to submit a separate application requesting the variance or direction of the issuance of a permit and a subsequent application for any required approval of a subdivision, site plan, or conditional use. The separate granting of the variance or direction of the issuance of a permit shall be conditioned upon the granting of all required subsequent approvals by the same approving authority. No such subsequent approval shall be granted unless such approval can be granted without substantial detriment to the public good and without substantial impairment of the intent and purpose of the zone plan and this chapter. The number of votes of the Board members required to grant any such subsequent approval shall be as otherwise provided in this chapter for the approval in question, and any special vote shall not be required. In the event that the developer elects to submit separate consecutive applications, the time period for granting or denying each separate application shall be as provided in Subsection J above.