The Board or the Hearing Officer, as the case may be, shall render a written decision or, when no decision is called for, make written findings on the application within 45 days after the least hearing before the Board or Hearing Officer. Where the application is contested or denied, each decision shall be accompanied by findings of fact and conclusions based thereon together with the reasons therefor. Conclusions based on any provisions of the Act, this or other ordinance or any rule or regulation shall contain a reference to the provisions relied on and the reasons why the conclusion is deemed appropriate in the light of the facts found. If the hearing is conducted by a hearing officer and there has been no stipulation that his decision or findings are final, the Board shall make his report and recommendations available to the parties within the above 45 days and the parties shall be entitled to make written representations thereon to the Board prior to the final decision or entry of findings, and the Board's decision shall be entered no later then 30 days after the report of the Hearing Officer. Where the Board fails to render the decision within the period required by this subsection or fails to commence the required hearing within 60 days from the date a properly completed application is received, the decision shall be deemed to have been rendered in favor of the applicant unless the applicant has agreed in writing or on the record to an extension of time. When a decision has been rendered in favor of the applicant because of failure of the Board to meet or render a decision as hereinabove provided, the Board shall give public notice of said decision, in the same manner as provided in Subsection A of this section, within 10 days from the last day it could have met to render a decision.