Two planned redevelopments of one-time major industrial sites in Philadelphia are progressing, but at vastly different paces, based on extent of site remediation required and legal issues.
The Philadelphia Navy Yard is a 1,200-acre former U.S. Navy base and shipyard south of center city, of which 1,000 acres was transferred to the city with base closure in the 1990s and now has mixed use development. Developers now plan to break ground on two new biotechnology buildings as part of a $2.5-billion project on part of the former site.