(A) No person upon being notified by the City Engineer that any building or structure owned or occupied by him is unsafe or unsanitary shall fail to comply with the written order of the City Engineer in connection therewith.
(B) The imposition of any penalty shall not preclude the Law Director from instituting an appropriate action or proceeding to prevent an unlawful erection, construction, reconstruction, alteration, repair, conversion, maintenance, or use, or to restrain, correct, or abate a violation or to prevent the occupancy of a building, structure, or premise, or prevent an illegal act, conduct, or use in and about any such premises.
(`63 Code, § 1309.99) Penalty, see § 150.99