As used in this article:
"Deteriorating area" means that portion of the municipality which the municipal governing body determines to be physically blighted on the basis of one or more of the following standards:
"Dwelling unit" means, unless otherwise defined in the ordinance or resolution providing for tax exemption, a house, double house or duplex, townhouse or row house, apartment, or any building intended for occupancy as living quarters by an individual, a family or families or other groups of persons, which living quarters contain a kitchen or cooking equipment for the exclusive use of the occupant or occupants.
"Municipal governing body" means a city, borough, incorporated town or township.
"Residential construction" means the building or erection of dwelling units, as defined above, upon vacant land or land specifically prepared to receive such structures.
72 P.S. § 4711-301