Written decision. Each decision on any application for development shall be reduced to writing as follows and shall include findings of fact and conclusions based thereon.

The municipal agency shall provide such written decision and findings and conclusions on the date of the meeting at which the municipal agency grants or denies approval unless a resolution of memorialization as provided in paragraph b is adopted by said agency.

Resolution of memorialization. In the event the meeting at which the municipal agency grants or denies approval occurs within the final 45 days of the applicable time period for rendering a decision on the application for development, the written decision may be provided by a resolution of memorialization adopted within 45 days of such meeting. The resolution of memorialization shall set forth the decision and the findings and conclusions of the municipal agency thereon. An action resulting from the failure of a motion to approve an application as provided in Subsection 21-5.2d shall not be memorialized by a resolution as provided above, notwithstanding the time at which such action occurs within the applicable time period for rendering a decision on the application pursuant to Subsection 21-9.2b. Whenever a resolution of memorialization is adopted in accordance with this subsection the date of the adoption of such resolution shall constitute the date of the decision for purposes of mailings, filings and publications required by subsections 21-6.8 and 21-6.9 of this chapter.