For the purposes of this chapter the following definitions shall apply:
(a) Public nuisance. Any fence, wall, garage, shed, house, building, structure, tree, pole, smokestack or any excavation, basement, cellar, well, cistern or sidewalk subspace or part thereof shall be deemed a public nuisance if it by reason of the condition in which the same is permitted to be or remain, endangers the health, life, limb or property, or causes any hurt, harm, inconvenience, discomfort, damage or injury to any one or more persons in the City in any one or more of the following particulars:
(1) By reason of being detrimental to the general health of the community;
(2) By reason of being a fire hazard;
(3) By reason of being unsafe for occupancy, or use on, in, upon, about or around the above premises;
(4) By reason of continued vacancy thereby resulting in lack of reasonable or adequate maintenance of structures and grounds and causing deterioration and 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.
(b) Owner. "Owner" or "owners" means the owner of record in the premises in fee or lesser estate therein, a mortgagee or vendee in possession, assign of the rents, receiver, executor, administrator, trustee, lessee or other person, firm or corporation in control of a building or their duly authorized agents. Any such person thus representing the owner shall be bound to comply with the provisions of this chapter to the same extent as if he were the owner.