(a) No buildings or premises shall be constructed or erected within the Central Business District which are intended, arranged or designed for use other than the following specified uses and unless they shall conform to the minimum standards set forth for each use class.
(b) Residential uses as set forth in Section 1305.02.
(c) Business uses as set forth in Section 1305.03.
(d) Buildings constructed in a Central Business District shall be constructed or remodeled only with outside walls of incombustible building materials and of sufficient strength to support two or more stories.
(e) The following shall not be built in the Central Business District: bulk gasoline storage plants, bulk oil or motor storage plants or other explosive gas or liquid storage places for wholesale distribution, billboards, auto wrecking lots or any dangerous or unsightly enterprise. Salvage yards shall not be permitted in the Central Business District.
(1960 Code 7-302.3)