(a) The entire surface area of every exterior wall shall be constructed of face brick and the roof shall be composed of standing rib (standing seam) or asphalt shingle. The Plan Commission may grant a waiver from this requirement during the development plan or site plan review.

(b) Any new structure, any addition to an existing building, and any exterior modifications to a building or to a site, shall first submit a development plan for review pursuant to article XVI of this chapter. In addition to the requirements in article XVI, the development plan shall comply with any design guidelines for commercial districts as may be adopted and amended by the Town Council from time to time.