40 COMMISSION ON BUILDING DISTRICTS 



10 stories would be 20 feet in depth, and for a building 150 feet high, 

 or about 12 stories, would be 25 feet in depth. This is not in excess of the 

 best economic standards and practice, and will greatly improve light and 

 air conditions in the loft building and office building sections of the city. 

 In case the yard started 18 l feet above the curb, as permitted for buildings 

 not in residence districts, the width of the yard at any height above the 

 curb would be three feet less than indicated in the above examples. (See 

 Figure 151.) 



In the C districts rear yards for all buildings must be at least three 

 inches in least dimension for each foot of height and outer courts and 

 side yards must be at least one and one-half inches in least dimension for 

 each one foot of height. The prescribed minimum size of yards and courts 

 remain about the same as under the Tenement House Law up to and includ- 

 ing five stories in height. Above that height, however, they gradually become 

 more stringent than under the Tenement House Law. In a building five 

 stories, or approximately 56 feet in height, a rear yard under these pro- 

 visions would have to be 14 feet wide, or two feet wider than required 

 under the Tenement House Law. An outer court would have to be seven 

 feet wide, or one foot wider than required under the Tenement House Law. 

 However, as buildings on interior lots are limited to 70 per cent of the 

 lot under the Tenement House Law, this is apt to require increases in the 

 minimum depths and widths of courts and yards, and for most floor plans 

 and plots a five-story tenement house covering 70 per cent of the lot 

 could be built under the C district regulations. On account of difficulties 

 in planning suitable buildings for small plottages a special exception is 

 made in the court requirements for a lot 30 feet or less in width. On such 

 lots outer and inner courts are subject to the regulations provided for 

 such courts in the B districts. (See Figure 153.) 



For all buildings in a D district rear yards must be four inches in 

 least dimension for each one foot of height and courts and side yards two 

 inches in least dimension for one foot of height. A building on an interior 

 lot in a residence district may not cover more than 60 per cent of the area 

 of the lot ; on a corner lot it may cover 80 per cent of such area. In a 

 residence district the depth of a rear yard at the curb level shall be 20 

 per cent of the depth of the lot, but need not exceed 20 feet at such level. 

 The restrictions provided for the D districts are especially appropriate for 

 one and two-family house districts, especially where houses occur in rows. 

 They are also appropriate for multi-family houses, provided they are built 

 with more adequate courts and open spaces than is now customary. The 

 minimum dimensions of yards and courts are double those required for 

 buildings in the B districts. A tenement or an apartment house on an 

 interior lot in a D district covering 60 per cent of its lot, four stories, or 

 44 feet in height, would have to have a yard 20 feet deep and an outer 

 court at least seven feet four inches wide. For lots of 30 feet or less in 

 '23 feet in Resolution of July 25, 1916. See sect. 16, par. b. 



