As used in this chapter, the following terms shall have the meanings indicated:
Any house, basement, cellar, wall, cottage, lot, shed, garage, well, fence, storage tank, underground container, pole, smokestack, excavation, building, structure or portion thereof used for residential, business, industrial, recreational or other purpose.
A building or structure which is structurally unsound, unsanitary, or not provided with adequate ingress or egress or which constitutes a fire hazard or which has become unsafe by reason of damage by fire, the elements, age or general deterioration or which, in relation to an existing use, constitutes a hazard to public health, safety or welfare by reason of inadequate maintenance, dilapidation, obsolescence or abandonment or which is otherwise dangerous to human life, or which has become a blighting influence on nearby properties and thereby depreciating the enjoyment and use of the property in the immediate vicinity to such an extent that it is harmful to the community in which such structure is situated.