C1 C2 C3 C4

In C1 or C2 Districts mapped within R1 through R5 Districts, and C3 and C4-1 Districts, height and setback regulations are modified as follows:

(a)        no front yard is required for any portion of a building in a Commercial District, except as otherwise provided in Section 35-51 (Modification of Front Yard Requirements). Therefore, in applying the height and setback regulations in districts where the height of buildings or other structures is governed by sky exposure planes, such sky exposure plane, which in a Residence District would be measured from a point above the front yard line, may be measured from a point above the street line. The maximum height of a front wall within the initial setback distance permitted in the applicable district for a residential, commercial or community facility building, whichever permits the greatest maximum height;

(b)        in cases where the provisions of paragraph (a) of Section 34-233 (Special provisions applying along district boundaries) apply, as set forth in Section 35-51, the sky exposure plane is measured from a point above the front yard line;

(c)        in C1 or C2 Districts mapped within R3 or R4A Districts, the height and setback regulations applicable to R4 Districts, except R4A and R4B Districts, may be applied;

(d)        in C1 or C2 Districts mapped within R4, R4B or R4-1 Districts, the height and setback regulations applicable to an R5B District may be applied; and

(e)        in C3A Districts, the height and setback regulations applicable to R3A Districts shall apply.