274 



COMMISSION ON lU'lLDINC DISTRICTS 



LOTS RUNNING THROUGH FROM STREET TO STREET. 



Street 



"777777 



AH buildings 150' high 

 $K S A 'B 'District. 



'A'///// 



Street 



Bu/ 1 dings mgrKed 'A' are inferior buildings, each bacK to bacK 

 with another building, and therefore regu/re rear yards 25' wide. 

 The inner courts in the building running through from street 

 to street are each the area of an inner court (25'*25'= 625sgftJ 

 and the width of an outer court (150 inches or 12' 6') 

 Same courts are reguired for a -similar building running 

 through from one street to within 55 feet of another street. 



Fig. 157. 



Sec. 17, Par. (a). A room which receives its necessary light and venti- 

 lation from the street and also from a court or yard would have to have 

 one of its windows open on a court or yard of the size prescribed in this 

 resolution. Any room which was lighted or ventilated entirely from yards 

 and courts would have to open on at least one yard or court of the pre- 

 scribed size. 



Sec. 17, Par. (b). An outer court opening on a street might include 

 part of the street within its required dimensions (see Figure 173). 



Sec. 17, Par. (c). In general the area of inner courts should be equal 

 to the square of the least dimension of a required rear vard at the same 

 distance above its lowest level. It would be the square of the least dimen- 

 sion in inches per foot of height above the bottom of the court and not 



