In order to classify, regulate and restrict the location of trades and industries and the location of buildings designed for specific uses; to regulate and limit the height and bulk of buildings; to regulate and determine the area of yards, courts and other open spaces, surrounding buildings, and to regulate and limit the density of population, the City of Pittsburg, Texas, is hereby divided into 17 classes of “Districts.” The use and area regulations are uniform in each district, and said districts shall be known as:

The boundaries of these districts are hereby established as shown on the map accompanying and made a part of this Ordinance, of Pittsburg. The Zoning District Map and all the notations, references and other information shown thereon are a part of this Ordinance and shall have the same force and effect as if such map and all the notation[s], references and other information shown thereon were all fully set forth or described herein; which Zoning District Map is properly attested, filed and maintained as follows:

Where the district boundary lines on said map follow either streets or alleys or lot lines, and where the districts designated on the map are bounded by such street, alley or lot lines, the centerline of the street or alley or the lot lines shall be the boundary of the district unless such boundary is otherwise indicated on the map. Where uncertainty exists as to the boundaries as shown on the official zoning map, the following rules shall apply: