Article V. Minimum Standards for Light and Ventilation.
Sec. 15.1-21. Minimum window area.
No owner shall occupy or let to another for occupancy any
dwelling unit for the purpose of living, sleeping, cooking or
eating therein which does not comply with the following requirements:
Every habitable room, bathroom and water closet compartment
shall have at least one window or skylight facing directly
to outdoor open space having a total area equal to at
least ten per cent of the floor area of such room; or such
other device as will adequately ventilate the room which shall
be in working condition at all times. All windows and skylights
shall be enclosed with glass and shall be provided with
suitable hardware with construction so as to be able to be
opened to the extent of five per cent of the floor area. Whenever
walls or other portions of structures face a window of
any such room and such light-obstruction structures are located
less than three feet from the window and extend to a
level above that of the ceiling of the room, such a window
shall not be deemed to face directly to the outdoors and shall
not be included as contributing to the required minimum total
window area. Every public hall and stairway in every multiple
dwelling unit containing five or more dwelling units shall
be adequately lighted at all times. (10-5-64; 6-19-67; 3-3-69.)
