(A) Building in district boundaries. The boundaries of districts are shown on the map on display in the office of the City Clerk and of the Zoning Officer. All changes in zoning will be shown on revised map on display in the office of the City Clerk and of the Zoning Officer. Such map is hereby adopted and made a part of this code.
(B) Change in district boundaries, regulations and restrictions. Changes in the boundaries of any district or part thereof or changes of regulations or restrictions within any such district may be made by the City Council. The City Council shall use the following procedure when altering or establishing zoning district regulations and/or boundaries.
(1) A petition requesting such change shall first be presented to the City Council, duly signed by the owners of 35% or more, either of the area of the lots included within such change or of the lots immediately adjacent in the area thereof, extending 300 feet from the street frontage of such opposite lots. In the case of corner lots, the petitioners shall be owners of property along each street frontage.
(2) Such petition shall be referred to the Board of Adjustment which shall make a careful investigation of such proposed change and file a written report thereon within 30 days after the same has been referred. The City Council shall thereupon cause notice to be published twice in a paper of general circulation within the city of the time and place set for the hearing upon such petition and report. The publication of such notice shall be made at least 15 days prior to the time of such hearing. At such hearing, the City Council shall hear all persons and all objections and recommendations relative to such proposed change and thereupon, action shall be taken upon such petition by said City Council and such action shall be final and conclusive as to all matters and things involved in said petition.
(3) Provided, however, that, if written protest against such change signed by the owners of 25% or more, either of the area of the lots included in such proposed change or, of those within 300 feet of the area proposed for change, such amendment shall not become effective, except by the favorable vote of three-fourths of all the members of the City Council.
(4) When such proposed amendment has been rejected by the City Council, neither it, nor one involving only the same property, shall be offered for adoption within one year after such rejection.
(5) Changes in the regulations and restrictions in any district may be made from time to time by the City Council in the same manner as is prescribed in divisions (B)(1) through (B)(4) above for making changes in the boundaries; except that, such action may be initiated without the presentation of a petition requesting it.
(1992 Code, § 9-1-114)