The purpose of this Code is to protect the public health, safety, and welfare, esthetics and property values, by establishing minimum standards for maintenance, appearance, condition, and occupancy, and for essential utilities, facilities, and other physical components and conditions to make residential premises fit for human habitation, and to make nonresidential premises fit for use according to the purpose for which they were developed; by fixing certain responsibilities and duties upon the owners and managers, and distinct and separate responsibilities and duties upon the occupants; by authorizing and establishing procedures for inspection of premises, and enforcement of this Code; establishing penalties for violations; and providing for proper repair, demolition, or vacation of premises which do not comply with this Code.