49-9. Certain changes not prohibited

Nothing in this article shall be construed to prevent the ordinary maintenance or repair of any exterior architectural feature on a landmark which does not involve a change in design, materials, or outward appearance thereof; the ordinary maintenance or repair of streets, sidewalks, pavement markings, street signs, or traffic signs; [or] the construction, reconstruction, alteration, restoration or demolition of any such feature which the building inspector shall certify is required by the public safety because of an unsafe or dangerous condition. Nothing herein shall be construed to prevent the maintenance or, in the event of an emergency, the immediate restoration, of any existing above-ground utility or structure without approval by the ZBA.