A uniform system of numbering properties and principal buildings as shown on the maps identified by the title, “Uniform Numbering System Map,” dated June 1987, (hereinafter referred to as the “property number map”), which is filed in the County Planning Department, is hereby adopted for use in the city.  This map and all explanatory matter thereon, is hereby adopted and made a part of this chapter.
(`95 Code, § 3-1-1)