There is hereby created and established a Planning Commission which shall consist of seven members as hereinafter provided. The Council shall appoint one member of the Planning Commission from among the membership of Council, which member shall serve for a two year term, provided that he shall not serve beyond his tenure on the Council. The Mayor shall be a member of the Planning Commission. In addition to the members hereinabove provided, there shall be five citizen members of the Planning Commission who shall be appointed by the Mayor, subject to confirmation by the Council by a vote of at least four members of the Council. The five citizen members shall serve for terms of three years; however, the first appointment of citizen members of the Commission under this Charter shall be as follows: one of such members shall be appointed for a one year term; two of such members shall be appointed for two year terms; and two of such members shall be appointed for three year terms. Thereafter each citizen member shall be appointed for a three year term and shall continue in office until his successor is appointed and confirmed.