Building Permit Application. Any application for a permit for a building or structure in the SD district or any district combined with the "SD" suffix shall be accompanied or preceded by the filing with the planning commission of a specific development plan, consisting of architectural drawings or sketches and plot plans, all to a workable scale, showing the elevation of the proposed building or structure, signs proposed, landscaping or other treatment of grounds around such buildings or structures, off-street parking and other physical features such as trees, hydrants, poles, and other such installations, and in addition, any other plan, drawing or information as may be determined by the planning commission, which, in its opinion, is necessary to fully evaluate any requirement for a building permit.