(2/2/11)
In accordance with the provisions of Section 91-31, setbacks are required for any portion of a #building or other structure# that exceeds the maximum base heights specified for the applicable #street# in Section 91-31 (Street Wall Regulations).
Required setbacks shall be provided at a height not lower than any minimum base height or 60 feet where none is specified and not higher than any maximum base height specified for the applicable #street# in Section 91-31. The depth of the setback shall be determined by the #lot area# of the #zoning lot#, as shown in the following table:
| REQUIRED DEPTH OF SETBACKS |
| #Lot area# of #zoning lot# | Minimum setback depth |
| Less than 15,000 square feet | 10 feet |
| 15,001 to 30,000 square feet | 15 feet |
| Greater than 30,000 square feet | 20 feet |
For "Type 1" and "Type 2A and 2B" #street walls#, the required setbacks shall be measured from the #street line#.
For "Type 3" #street walls#, the required setbacks shall be measured from a line drawn at or parallel to the #street line# so that at least 70 percent of the #aggregate width of street walls# of the #building# at the minimum base height are within such line and the #street line#.
For all other #street walls#, the required setbacks shall be measured from a line drawn at, or parallel to, the #street line# so that at least 50 percent of the #aggregate width of street walls# of the #building# at the minimum base height are within such drawn line and the #street line#. However, setbacks are not required for #street walls# fronting upon the major portion of a bonused #public plaza#.
For #buildings# within the Historic and Commercial Core as shown on Map 1 in Appendix A, any #building# or portion of a #building# may be located within the required setback area beneath a #sky exposure plane# that rises from a height of 100 feet above the #street line# over the #zoning lot# at a vertical distance of six to a horizontal distance of one.