Amends §§ 23D.16.090, 23D.20.090, 23D.24.090, 23D.28.090, 23D.32.090, 23D.36.090, 23D.40.090, and 23D.44.090, clarifying required finding for denial of residential additions in all Residential Districts; and 23F.04.010, clarifying the definition of dormer and application of average building height