Discontinuance or abandonment. If a nonconforming use of a structure or lot is voluntarily discontinued, razed, removed or abandoned for 12 consecutive months, subsequent use of such structure or lot shall conform with the regulation of the zoning district in which it is located, unless the same or another nonconforming use is approved by the Zoning Hearing Board, and that permit application for such use is applied for within the time period of discontinuance or abandonment, and any approved use be initiated within 60 days after the Zoning Hearing Board authorization. Abandonment shall mean an intentional relinquishment of a use or structure for a continuous period of one year regardless of interest. Commercial or industrial abandonment shall be measured from the date of the last record of sale or regular occupancy, whichever occurs first. Residential abandonment shall be measured from the last date of regular and permanent occupancy.