Applications for a sign permit shall be made in writing by the owner, lessee or erector and be accompanied by a scale drawing showing dimensions, proposed design, the legend, colors, materials, structural details and a tape or plot locations map delineating the location of buildings, parking areas, other signs on the same property, frontage of each unit and/or any fences or other obstructions in relation to the designed location of the proposed sign. Lessee or erector applicants shall present evidence of the approval of the owner for such erections.