Amending Title 4 of The Philadelphia Code, entitled "The Philadelphia Building Construction and Occupancy Code," by amending Subcode PM (The Philadelphia Property Maintenance Code), by amending Section PM-307.0 entitled "Unsafe and Unfit Structures and Equipment" and Section PM-308.0 entitled "Imminently Dangerous Structures" by providing for the installation of a fence or other protective devices and other related measures after demolition of a structure, under certain terms and conditions. — Open Common Ground