BUILDING ZONE -RESOLUTION 233. 



(h) A " rear yard " is an open, unoccupied space on the same lot with a 

 building between the rear line of the building and the rear line of the lot. 



(i) The " depth of a rear yard " is the mean distance between the rear 

 line of the building and the rear line of the lot. 



(j) Lots or portions of lots shall be deemed " back to back " when they 

 are on opposite sides of the same part of a rear line common to both and the 

 opposite street lines on which the lots front are parallel wiht each other or 

 make an angle with each other of not over 45 degrees. 



(k) A " court " is an open, unoccupied space, other than a rear yard, on 

 the same lot with a building. A court not extending to the street or to a 

 rear yard is an " inner court." A court extending to the street or a rear 

 yard is an " outer court." A court on the lot line extending through from 

 the street to a rear yard or another street is a " side yard." 



(1) The " height of a yard or a court " at any given level shall be 

 measured from the lowest level of such yard or court as actually constructed 

 or from the curb level, if higher, to such level. The highest level of any 

 given wall bounding a court or yard shall be deemed to be the mean height 

 of such wall. Where a building is a tenement house, as defined in the Tene- 

 ment House Law, the height of a yard or a court shall be measured as 

 prescribed in such law. 



(m) The " least dimension " of a yard or court at any level is the least 

 of the horizontal dimensions of such yard or court at such level. If two 

 opposite sides of a yard or court are not parallel the horizontal dimension 

 between them shall be deemed to be the mean distance between them. 



(n) The "length of an outer court" at any given point shall be 

 measured in the general direction of the side lines of such court from the 

 end opposite the end opening on a street, or a rear yard, to such point. 



Article II — Use Districts 



§ 2. Use Districts. For the purpose of regulating and restricting the 

 location of trades and industries and the location of buildings designed for 

 specified uses, the City of New York is hereby divided into three classes of 

 districts: (1) residence districts, (2) business districts, and (3) unre- 

 stricted districts ; as shown on the use district map which accompanies this 

 resolution and is hereby declared to be part hereof. The use districts 

 designated on said map are hereby established. The use district map desig- 

 nations and map designation rules which accompany said use district map 

 are hereby declared to be part thereof. No building or premises shall be 

 erected or used for any purpose other than a purpose permitted in the use 

 district in which such building or premises is located. 



§ 3. Residence Districts. In a residence district no building shall be 

 erected other than a building, with its usual accessories, arranged, intended 

 or designed exclusively for one or more of the following specified uses : 



(1) Dwellings, which shall include dwellings for one or more families 

 and boarding houses and also hotels which have thirty or more sleeping 

 rooms. 



(2) Clubs, excepting clubs the chief activity of which is a service cus- 

 tomarily carried on as a business. 



(3) Churches. 



(4) Schools, libraries or public museums. 



(5) Philanthropic or eleemosynary uses or institutions, other than cor- 

 rectional institutions. 



