In case of an adverse report by the City Plan Commission or if a protest against such proposed amendment, Special Land Use Permit, Special Land Use Permit Expansion, Planned District, Overlay District, supplement, change, modification or repeal shall be presented in writing to the City Clerk, duly signed and individually notarized by the owners of thirty percent (30%) or more, either of the area of the land (exclusive of streets, places and alleys) included within such proposed amendment, Special Land Use Permit, Special Land Use Permit Expansion, Planned District, Overlay District, supplement, change, modification or repeal or within an area determined by lines drawn parallel to and one hundred eighty-five (185) feet distant from the boundaries of the district proposed to be changed, such amendment, Special Land Use Permit, Special Land Use Permit Expansion, Planned District, Overlay District, supplement, change, modification or repeal shall not become effective except by the favorable vote of two-thirds (2/3) of all the members of the City Council. Said protest petition shall be filed with the City Clerk within seven (7) days from the advertised date of the public hearing concerning such proposed Special Land Use Permit, Special Land Use Permit Expansion, rezoning, amendment, supplement, modification, change or appeal.