No basement or cellar space shall be used as a dwelling unit unless:
(A) The floor and walls are impervious to leakage of underground and surface runoff water and are insulated against dampness.
(B) The total of window area in each room is equal to at least the minimum window area sizes as required in § 154.22(A).
(C) The total of openable window area in each room is equal to at least the minimum as required under § 154.22(B), except where there is supplied some other device affording adequate ventilation and approved by the Health Officer or Building Commissioner.
(D) Every window which is below the grade of the ground adjoining such window shall have a lightwell or areaway extending at least 30 inches out from the window the entire depth and width of the window.
('75 Code, § 80.7(4)) Penalty, see § 10.99