No basement shall be used for living purposes unless:
(A) The floor and walls are substantially water- tight;
(B) The total window area, total openable window area, and ceiling height are equal to those required for habitable rooms; and
(C) The required minimum window area of every habitable room is entirely above the grade adjoining such window area, except where the window or windows face a stairwell, window well, or accessway.
(2003 Code, § 7-305) Penalty, see § 150.999