City owned utilities shall not hereafter be extended beyond the corporate limits of the city to any unincorporated portion of the urban area of Vinita nor sold to or used by new customers or patrons in such areas until and unless all of the ordinances, rules and regulations of the city applying to the development, redevelopment or use of land or construction or use of buildings within the city are complied with in the areas applying for such utilities and until and unless the owners of the property of such area applying for such utilities shall agree to become a part of the city when and if the city council determines that such annexation is desirable. (1986 Code § 18-11)