The hearing examiner and city council shall be guided by the following criteria in granting requests for amendments to the official zoning map of this title:

The council may, upon submittal of a complete application and upon recommendation from the hearing examiner, or on its own motion, and after public hearing and referral to and report from the hearing examiner, change by ordinance the district boundary lines or zone classification as shown on the zoning map, provided such change is duly considered in relationship to a comprehensive plan as required by the laws of the state.

The council may, upon recommendation of the planning commission, or upon its own motion, after public hearing and referral to and report from the planning commission, amend, delete, supplement, or change by ordinance the regulations herein established, provided such revision conforms to the laws of the state.

An application for a change of zone classification or district boundary lines submitted by the property owner, or his authorized representative, shall be filed with the zoning administrator. The petition shall be accompanied by a check made payable to the city in the sum of one hundred dollars which shall be nonrefundable and used to cover costs incurred in connection with posting of the premises, mailing of notices and conducting the hearing as provided in this title.