No permit shall be issued to demolish a building except in accordance with the requirements of this section.
(a) Upon receipt of an application for a demolition permit, the Building Official, in coordination with the Zoning Administrator, shall make a determination whether the building is historically significant or contributing, based on historic studies that may be prepared from time to time. If sufficient information is not available to make a determination, the Building Official may request the assistance of the Planning Commission.
(b) If a building is determined to be historically significant or contributing, the Building Official shall not issue a demolition permit until a period of ninety (90) days from the date of application has elapsed.
(c) If a building is determined to be non-contributing, the Building Official shall issue a demolition permit within a period of ten (10) days from the date of application.
(d) Nothing in this section shall be construed as to prevent enforcement of Chapter 1480, Unsafe Buildings Ordinance.