Type 1 street walls, as shown on Map 4 in Appendix A of this Chapter, shall comply with the provisions of this Section.

(a)        The upper street wall shall be located anywhere within five feet of the street line for at least 70 percent of the street frontage of the Parcel and shall rise without setback to a minimum height of 85 feet above curb level, or the height of the building, whichever is less.

(b)        The lower street wall shall be set back at least two feet but no more than 10 feet from the upper street wall required pursuant to paragraph (a) of this Section and shall extend along at least 70 percent of the street frontage of the Parcel. For Parcels D1, E1, F1, G1, G2 and H, the height of the lower street wall shall be not less than twice the depth of the setback of the lower street wall from the upper street wall, but not less than 15 feet.

(c)        No street wall location regulation shall apply to the remaining 30 percent of the street frontage of a Parcel.

(d)        At least 20 percent of the area of an upper street wall facing Broadway shall be recessed to a minimum depth of 10 feet.

(e)        The street wall provisions of this Section may apply along a narrow street within 100 feet of its intersection of a wide street.