In Koepke v. Zoning Board of Appeals, 30 Conn. App. 395, 398, 620 A.2d 811 (1993), rev'd, 230 Conn. 452, 645 A.2d 983 (1994), the Court determined that an August 12, 1986 appeal to a board of appeals was untimely because the thirty day appeal period of 8-7 began to run on July 11, 1986, the date on which the zoning enforcement officer issued the original zoning permit, and not on August 7, 1986, the date on which a superseding zoning permit was issued. The Court concluded that "the thirty day limit of 8-7 is mandatory in nature and, thus, any appeal not taken within thirty days is invalid." Id.