To assure that special use structures shall be reasonably attractive in appearance, the builder or his representative shall submit to the Planning Board, in addition to other requirements, an architect's rendering or comparable illustration of the planned construction, including landscaping, prior to applying for a building permit. Unless such a drawing approved by the Planning Board is submitted to the Inspector of Buildings, no permit for a building shall be issued, nor shall an occupancy permit be granted, unless and until the finished structure conforms to the drawing submitted.