Where by reason of exceptional narrowness, shallowness, or shape of a specific piece of property, or by reason of exceptional topographical conditions, or by reason of other extraordinary and exceptional situation or condition of such piece of property the strict application of any regulation in this chapter would result in peculiar and exceptional practical difficulties to or exception and undue hardship upon the developer of such property, grant upon an application or an appeal relating to such property a variance from such strict application of such regulation so as to relieve such difficulties or hardship, including a variance shall be granted under this subsection to allow a structure or use, and provided, further, that the proposed development does not require approval by the Planning Board of a subdivision, site plan or conditional use in conjunction with which the Planning Board shall review a request for a variance pursuant to Section 47A of the Municipal Land Use Law of 1975 (N.J.S.A. 40:55D-1 et seq.).