Subject to the provisions of any law of the State of Texas, an appeal may be taken to the City Council from any decision of any board, commission, committee or other body except from decisions of the Board of Adjustment. Such appeals shall be perfected by filing a sworn notice of appeal with the City Secretary within thirty days from the rendition of the decision of the board, commission, committee or other body. Prior to the institution of any appeal in a court of law by an aggrieved person from a decision of such board, commission, committee or other body, appeal must be first perfected to the City Council.