For zoning lots in R8A Districts or in C1 or C2 Districts mapped within R8A Districts, or in Commercial Districts with an R8A residential equivalent, within 100 feet of a wide street located outside of Mandatory Inclusionary Housing areas, the height and setback provisions of Sections 23-662 (Maximum height of buildings and setback regulations) or 35-652 (Maximum height of buildings and setback regulations), respectively, shall be modified as follows: the maximum base height shall be 105 feet, the maximum height of a building or other structure without a qualifying ground floor shall be 140 feet, the maximum height of a building or other structure with a qualifying ground floor shall be 145 feet, and the maximum number of stories shall be 14.