There were previous cases relating to urban renewal that went before the Supreme Court. Here is the landmark case that was heard in 1954...

http://en.wikipedia.org/wiki/Berman_v._Parker

Berman was reexamined in the 2005 Supreme Court decision Kelo v. City of New London, in which the court merely reaffirmed existing precedent about the definition of public use for local governments to take private property by eminent domain.