Any proposition for a change in the zoning ordinance may be initiated by the Planning Commission, Council, or by request of the owner of the property directly affected thereby. Any such request by a property owner shall be submitted in writing, signed by the property owner, to the City Clerk who shall file said request and forthwith refer same to the Planning Commission.
The Planning Commission shall cause the City Clerk to give not less than five (5) days notice to the following, by certified mail, of the date, time, and place of the meeting at which it shall consider any proposition for a change in the zoning ordinance, whether initiated by the Council, the Planning Commission, or by request of the property owner:
1. 
The property owner or owners who are directly affected by the proposed change. A general change in regulations for the entire City or for a particular zoning district shall not require notice to any property owners.
2. 
The boards of education of the school districts.
3. 
The boards of trustees of the fire districts.
4. 
All owners of property within one hundred eighty-five (185) feet of the property proposed to be rezoned, if the proposition is for a specific zoning.
All notices to property owners as herein provided for shall be directed to such property owners at their addresses as shown on the tax records for said property in the City offices, or if no such addresses are listed in the City offices, in the offices of the Department of Revenue of St. Louis County. If no address of the property owner is indicated in conjunction with the property in either the tax records of the City or the Department of Revenue of St. Louis County, no notice need be mailed to the property owner. In any event the failure of any party entitled to notice hereunder to receive same shall not be cause to invalidate any proceedings conducted under this Article.
The Planning Commission shall consider each proposition for a change in the zoning ordinance initiated by the Council or request of the property owner and make its recommendations thereon to the Council within eighty (80) days of the referral of said request to the Planning Commission, unless the Council or the applicant agrees to an extension of the time. The affirmative vote of the majority of all members of the Planning Commission shall be required for any favorable recommendation on any zoning change.
Any change in the zoning ordinance against the recommendations of the Planning Commission may be adopted by the Council only on the affirmative vote of three-fourths (3/4) of the entire membership of the Council. Any request for a change in the zoning ordinance initiated by a property owner which has been denied by the Council may not be resubmitted for a period of six (6) months from the date of such denial.
All applications for a special use permit or similar permit, if such permits are authorized under the zoning ordinance, shall require the same procedure and be subject to the requirements of Section 9.01 of this Article as if such applications were for a change in zoning.
The Planning Commission shall have all powers and duties granted and assigned to the Planning Commission and zoning commission under Chapter 89, Missouri Revised Statutes, 1959, and such other powers and duties granted and assigned to it by law or by ordinance.