The principal dwelling may be constructed in an R-1E Residence Zone on the street other than a public thoroughfare; provided, however, that ingress and egress to the dwelling must be shown on a plat approved by the Planning Board, and no building permit shall be issued unless the street shall have been certified to be suitably improved to the satisfaction of the governing body or such suitable improvements shall have been assured by means of a performance guaranty, in accordance with standards and specifications for road improvements approved by the governing body as adequate with respect to the public safety and general welfare of the special circumstances of the particular street in accordance with the requirements of N.J.S.A. 40:55D-35.