It shall be unlawful to:
A.
Construct or maintain in the Borough of Berlin any building or any part of any building, staging, wall or other structure that from any cause may now be, or which at any time hereafter may become, dangerous to life or health, or which may tend to extend a conflagration; and
B.
Maintain any building or buildings or parts thereof which are so old, dilapidated or which have become so out of repair as to be dangerous, unsafe, insanitary or otherwise unfit for human habitation or occupancy or use, or which are inimical to the welfare and dangerous and injurious to the health and safety of the people of the Borough of Berlin; and
C.
Maintain any building or buildings which are unfit for human habitation or occupancy or use, due to dilapidation, defects increasing the hazards of fire, accidents or other calamities, lack of ventilation, light or sanitation facilities, or due to other conditions rendering such building or buildings or any part thereof unsafe or insanitary or dangerous or detrimental to the health or safety or otherwise inimical to the welfare of the residents of the Borough of Berlin.