Section 27-2060. Lighting and ventilation of living rooms in new law tenements

a. Required windows. Every living room in a new law tenement  shall have a window opening on:
    (1) A street, or
    (2) A lawful yard or court.
    b. Size of windows. (1) The total area of  all  windows  in  the  room
  shall be at least one-tenth the floor area of such room.
    (2) Every required window shall be at least twelve square feet.
    (3) At least one-half of every required window shall open.
    (4)  The  top of one required window in a room shall be at least seven
  feet six inches above the floor.
    c. Through ventilation. (1) Every part of a  dwelling  unit  of  three
  rooms  or  less shall be either within eighteen feet of a street or yard
  or have a window opening upon a lawful court.
    (2) If the window of any room opens on an inner court with a width  of
  less than ten feet between the exterior wall of the dwelling and the lot
  line,  there shall be a sash window connecting such room to an adjoining
  room within the dwelling unit. The sash window shall have at  least  ten
  square feet of glazed area, one-half of which shall open.
    d.  Dining  space.  A dining space shall have at least one window: (1)
  That complies with the provisions of subdivision a; and
    (2) That has an area not less than one-eighth the floor area  of  such
  dining space.