Effective Oct. 1, the shuttered Saint Callistus and Saint Laurentius churches will no longer serve as worship sites and will be closed as Roman Catholic churches.
Archbishop Charles Chaput has officially relegated both buildings to "profane but not sordid use" effective Wednesday.
Both churches were closed more than a year ago and were merged into other nearby parishes.
At St. Laurentius in Fishtown, which still has an active Catholic school, a "Save St. Laurentius" committee has submitted an appeal of the Archdiocese's decision to the Vatican in Rome.
"We are going to appeal to Rome and ask Rome to have an honest, open process that determines the best future for this historic building," said A.J. Thomson, a member of the committee.
A canon law attorney is handling the group's appeal.
According to the Archdiocese, Saint Callistus in Overbrook is in need of about $260,000 in repairs, while it would cost $3.5 million to repair reported structural problems the 130-year-old Saint Laurentius.
The Archdiocese has merged many Philadelphia parishes in recent years, closing a church and directing people to worship at a nearby church.
The closed churches are cannot have relics removed until they are officially de-consecrated.
It's unknown whether these churches will be sold or demolished.