All the additions, lots, lands, subdivisions and parcels of ground included within the official city map and plat, a copy of which is on file in the office of the City Clerk and is hereby incorporated herein by reference, having been by act or ordinance of the City Council or by law duly annexed to or made a part of this city, or having been by the act, authority, acquiescence, consent, platting and dedication of their respective owners, created either as an original town site or as additions to the city, are hereby declared to be within the corporate limits of the city. Lawfully constituted additions or changes in said city limits shall be indicated upon said maps and plat by the City Clerk after such addition or change has been completed in accordance with the ordinances of this city and the laws of the state.
(1999 Code, § 11-201)