Recommendations regarding zoning matters. Within 45 days after any referral for review, requested report or hearing regarding a zoning matter, and unless a different time is required within this chapter, the Planning Commission shall record its review, analysis and recommendations in written form, copies of which shall be forwarded to the appropriate body, such as Council, the Zoning Hearing Board, or, in certain cases, to the Building Inspector. The forty-five-day period for a decision shall be computed from the day of the Planning Commission meeting at which subject matter was presented requiring such decision. If any public hearing is required during the course of the review, the forty-five-day period prescribed above shall be applicable only after the holding of a required public hearing in accordance with public notice required by Act 247 and this chapter.