Type 2 street walls, as shown on Map 4 in Appendix A of this Chapter, shall comply with the provisions of either paragraph (a) or (b) of this Section.

(a)        The street wall shall be located within two to five feet of the street line or the mandatory widened sidewalk line, whichever is applicable, and shall rise without setback to a minimum height of 45 feet. A street wall fronting on West 125th Street shall extend along at least 70 percent of the length of the street line of the Parcel; a street wall fronting on West 130th Street shall extend along at least 50 percent of the length of the mandatory widened sidewalk line. No street wall location regulation shall apply to the remaining 30 percent of the street frontage of the Parcel on West 125th Street, or to the remaining 50 percent of the street frontage of the Parcel on West 130th Street; or

(b)        Where the lower street wall is set back from the upper street wall:

(1)        the provisions of Section 104-334 (Type 4 street wall location) shall apply to street walls facing West 130th Street;

(2)        the provisions of Section 104-331 (Type 1 street wall location) shall apply to street walls facing West 125th Street; and

(3)        for street walls facing 12th Avenue, the upper street wall shall be located within five feet of the mandatory widened sidewalk line and the lower street wall shall be set back not more than 30 feet from the upper street wall.