"We've been waiting for legal authority to open. We now have legal authority. We're going to continue without plans to do that," Goldfein said.
Safehouse officials have planned a Wednesday morning news conference to discuss next steps, which could include opening one or more facilities in Philadelphia.
The facilities have been proposed for several U.S. cities as a way to combat the high number of overdoses related to the opioid epidemic, but none have yet opened because of the question of their legality.
U.S. Attorney William McSwain, who brought the suit against Safehouse, says he'll appeal the order.
“What Safehouse proposes is a radical experiment that would invite thousands of people onto its property for the purpose of injecting illegal drugs,” McSwain said in a statement. “In our view, this would plainly violate the law.”
John McNesby, president of the Fraternal Order of Police Lodge 5, agreed with McSwain, noting that “the solution to ending the opioid crisis in Philadelphia is complicated, but condoning the use of illicit drugs is not the answer.”
But Goldfein said an appeal won't stop Safehouse.
"This is a declaratory judgment. We can move forward notwithstanding his appeal," Goldfein added.
City officials praised the ruling.