All lots, buildings and structures in the city shall be numbered in accordance with the following plan.
(A) The base line for streets running north and south shall be Main Street, and numbers lying north or south thereof shall be designated north, or south, as the case may be; the base line for streets running east and west shall be Market Street to Fourth Street and St. Louis Street from Fourth Street, south, and numbers lying east or west of this line shall be designated east, or west, as the case may be.
(B) Numbering shall begin with the base lines with the number 100, and one unit shall be allowed for each 30 feet of frontage. The numbers at each block shall begin with 100 or a multiple thereof.
(C) Odd numbers shall be on the north and west sides of the streets.
(1994 Code, § 100.65)