The building official shall not issue a permit for construction, erection, placement, or maintenance of a sign until a site is established in one of the following ways:
(a) A lot is part of a plat which is approved by the commission and filed in the plat records of the appropriate county. All platted lots must have frontage, through fee simple ownership, on a dedicated street.
(b) A lot was separately owned prior to September 11, 1929 or prior to annexation or consolidation, and the lot has frontage, through fee simple ownership, on a dedicated street.
(c) A lot is part of an industrial subdivision in which only streets, easements, and blocks are delineated. The industrial subdivision must be approved by the commission and filed in the plat records of the appropriate county. No specific lot delineation is required, but yard, lot and space requirements will be determined by property lines or lease lines.
(d) Tracts that are governed by a detached sign unity agreement in accordance with Section 51A-7.213. (Ord. Nos. 19455, 21797)