At the time set for the hearing or on the day or time to which such hearing is postponed or continued, the City Council shall hear the evidence offered by any person interested. After hearing such evidence and considering the proposal, the City Council may, by ordinance, order the establishment of a line or lines to be known and designated as a setback line or lines between which line or lines of the street no building or structure shall be erected or constructed. The setback line or lines so established may be such as to conform with the setback line or lines as proposed in the resolution of intention, or may be changed or modified in whole or in part so as to establish a line or lines less distant from the street than the one proposed in the resolution of intention. If the Council determines that a setback line or lines farther from the street or from the centerline thereof should be established, a new resolution of intention shall be passed indicating the point at which it is intended to establish such setback line or lines, and all of the proceedings shall be followed which are required in the case of any other setback line or lines authorized by this chapter, unless all property owners affected approve such proposed setback line or waive such further proceedings. The Council shall have authority to abandon the proceeding to establish any setback line at any time after such proceedings are begun and before the final adoption of the ordinance creating same.
(`83 Code, § 12.12.040)