In cases where it appears that there is an imminent danger to life or safety of any person unless an unsafe building as defined in Sec. 11.5.2. is immediately repaired, vacated, closed or demolished, the Housing and Neighborhoods Director shall order its immediate repair, evacuation, closing or demolition as he may deem necessary, notwithstanding the other provisions of this Article. The City may take the temporary measures necessary to safeguard persons from immediate danger of collapse of such building and is authorized to close temporarily sidewalks, streets, buildings and structures in places adjacent to such unsafe building and prohibit the same from being used, pending the removal of the danger. The cost of the emergency measures taken shall become a lien against the premises upon which the emergency condition existed upon confirmation of the cost thereof by the Council. The confirmation shall take place only after 10 days' written notice to the owner of the premises where the emergency condition existed. Charter reference: Building inspection, abatement of unsafe conditions. State law reference: G.S. 160A-193.