The following street wall regulations shall apply in C1-2 Districts mapped within R3-2 Districts and in C4-2 Districts within the Upland Subdistrict. In R7-3 Districts, no street wall location provisions shall apply.

1. Street walls along commercial streets
   
   For street walls fronting streets designated on Map 2 in the Appendix to this Chapter, the street wall shall extend along at least 70 percent of the street frontage of the zoning lot and be located within eight feet of the street line of the street, or sidewalk widening line, whichever is applicable.
2. Street walls along other streets
   
   For street walls fronting other streets, the street wall shall extend along at least 50 percent of the street frontage of the zoning lot and be located within eight feet of the street line or sidewalk widening line, whichever is applicable.

In C4-2 Districts within the Upland Subdistrict, such street walls shall rise without setback to the minimum height specified on Map 3 (Minimum and Maximum Base Heights) in the Appendix to this Chapter, or the height of the building, whichever is less. When a building fronts on two intersecting streets for which different minimum base heights apply, the higher base height may wrap around to the street with the lower base height, for a distance of up to 100 feet.