The building was sold to the Episcopal Church of Pennsylvania and was made into their headquarters.
It later became a private school called the Academy of Notre Dame.
Architect Donald Reiff drew the plans for the Rittenhouse.
After more than a decade of construction, the hotel opened its doors to guests in 1989.
[2] The design featured views of Rittenhouse Square, angling the windows to offer each room a direct view of the square below.