§27-2061 Lighting and Ventilation of Living Rooms in Old Law Tenements

   a.   Required windows. Every living room in an old law tenement shall either have a window opening:

      (1)   On a street; or

      (2)   On a yard at least four feet in depth; or

      (3)   On a court or shaft at least twenty square feet in area open to the sky without a roof or skylight; or

      (4)   Above the roof of an adjoining building; or it shall meet the requirements of the multiple dwelling law. In the event that a window opens above the roof of an adjoining building and the light and air from the adjoining lot is thereafter diminished in any way, the department may determine that such a room is a noncomplying room and require compliance with the requirements of the multiple dwelling law. For a room located on the top story, a ventilating skylight opening to the outer air may be substituted for a window. At least one-half of every required window shall open.

   b.   Dining space. A dining space shall have at least one window which:

      (1)   Opens on a street, yard or legal court, and

      (2)   Has an area not less than one-eighth the floor area of such dining space.