In all instances where a conditional use, variance, or final site plan is granted, the building or construction permit sought shall be secured and issued or the authorized action taken within two years and one day after the date of the granting of the conditional use, variance or site plan in question. For good cause shown and upon written application, the Planning Board/Zoning Board may extend the time period for any of the time limits set in this section, provided that the applicant in the event of such application for extension shall be obligated to serve and publish notice of the application for such extension in conformity with the notice requirements of subsection 25-48.5.