The Planning Board acting as the Board of Adjustment shall have the power to grant, to the same extent and subject to the same restrictions as the Planning Board, subdivision or site plan approval pursuant to N.J.S.A. 40:55D-37, or conditional use approval pursuant to N.J.S.A. 40:55D-37, or conditional use approval pursuant to N.J.S.A. 40:55D-67 whenever the Board is reviewing an application for approval of a use variance pursuant to N.J.S.A. 40:55D-70d.