Completion of improvements required prior to issuance of permits. The Board, in granting final subdivision, final site plan or variance approval, may, in appropriate circumstances, condition the issuance of building permits, demolition permits, certificates of occupancy or zoning approvals, as applicable, upon: 1) the timely installation of required infrastructure improvements set forth in Subsection C below, notwithstanding any performance guarantee which may have been provided, and 2) upon the timely installation of required site improvements set forth in Subsection D below. In no case, however, shall a certificate of occupancy or zoning approval be issued for any development prior to the satisfactory completion of all required improvements set forth in Subsections C and D below; provided, however, that the Board may, in appropriate circumstances, authorize the issuance of a certificate of occupancy or zoning approval prior to the completion of the top course of street pavement, street trees and on-site landscaping if a performance guarantee for same is provided in accordance with § 5.05.