(a)   There are hereby delegated to the Planning and Zoning Commission all powers now or hereafter authorized by law to be delegated to any administrative board with respect to any planning or zoning ordinance, including, without prejudice to the generality of this delegation, the following powers:
(1)   The Planning and Zoning Commission shall hear and determine all appeals from the refusal of the Building Inspector, because of any thing contained in this Zoning Ordinance, to issue building permits.
(2)   The Planning and Zoning Commission shall hear and determine all appeals from any decision or action of the Building Inspector in the administration or enforcement of this Zoning Ordinance.
(3)   The Planning and Zoning Commission may, in individual cases, after public notice, and to such persons as it deems immediately affected, and after hearing in accordance with such notices, and subject to such conditions and safeguards as it may establish, permit exceptions to and variations from the district regulation established by this Zoning Ordinance as follows:
A.   Permit the extension of building or use into a more restricted district immediately adjacent thereto, but not more than fifty feet beyond the boundary line of the district in which such building or use is authorized.
B.   Permit the substitution or extension of a nonconforming use or building upon a lot occupied by such use or building at the time of the passage of this Zoning Ordinance.
C.   Permit in a district any use deemed by the Commission to be in general keeping with the uses authorized in such district.
D.   Grant temporary and conditional permits, revocable at any time by the Commission and in no case for more than two year periods, for the buildings that do not conform to the regulations herein prescribed relative to the uses permitted in the district in which they are located.
E.   Permit the location in any district of any use provided such use in such location will not in the judgement of the Commission substantially and permanently injure the use of neighboring property, provided the petitioner files the consents, duly acknowledged, of the owners of eighty percent (80%) of the area of the land deemed by the Commission to be immediately affected by the proposed use, which area shall in no case extend less than 200 feet in any direction from the boundaries of the lot on which such proposed use ins to be located.
F.   The Planning and Zoning Commission shall adopt such rules as it deems proper for its meeting, and for exercising its powers and duties and carrying into effect the provisions of this section.
   (b)   The Planning and Zoning Commission shall meet upon call by the Mayor or by any two members of the Commission, and notice of the time and place of the meeting delivered to each member personally or left at his residence not less than twenty-four hours in advance of the meeting.
   (c)   All meetings of the Planning and Zoning Commission shall be public and minutes of all meetings shall be kept showing the attendance of members and vote or failure to vote of each member upon each subject. No shall be taken or decision made by the Planning and Zoning Commission except on the concurrence of at least three of its members.
(1978 Code Sec. 1266.03)