The Philadelphia City Planning Commission provides assistance to the Philadelphia Redevelopment Authority (PRA) for the redevelopment of vacant and blighted areas. Pennsylvania law defines blighted properties generally as buildings or areas that are neglected, unsafe, and/or a public nuisance (PA Title 26 Chapter 2).
The Planning Commission can make determinations of blight for areas that require modest assistance, however, for areas where property acquisition is necessary, the Redevelopment Authority must make its own determination in accord with strict Pennsylvania rules.
The Philadelphia City Planning Commission and Philadelphia Redevelopment Authority maintain redevelopment area plans and urban renewal plans for areas that have been designated as blighted. These plans guide the redevelopment of public land in accord with City policies. Redevelopment plans and urban renewal plans do not expire, however, they are regularly updated to reflect public plans and priorities.