Within Subareas A and B, the underlying street wall location regulations shall be modified as follows:

1. Subareas A and B1
   
   The street wall location provisions of paragraph (c) of Section 35-631 (Street wall location) shall apply and extend up to base heights as specified in Section 116-233 (Height and setback) or the height of the building, whichever is less.
2. Subareas B2 through B5
   1. The street wall location provisions of paragraph (a) Section 35-631 shall apply to type 1 mandatory front building line as outlined on Map 3 (Mandatory Front Building Wall Lines) in Appendix A of this Chapter. For the purposes of applying street wall location regulations, the street walls shall be considered as fronting onto wide streets.
   2. The street wall location provisions of paragraph (b) Section 35-631 shall apply to type 2 mandatory front building line as outlined on Map 3 (Mandatory Front Building Wall Lines) in Appendix A of this Chapter.
       

                  All mandatory front building walls shall extend up to base heights as specified in Section 116-233 or the height of the building, whichever is less.