The Archdiocese of Detroit owns the buildings and land at St. John's (approximately 200 acres) except for the hotel building, which is owned by a private investor.
Under a contract with the Archdiocese, the Troy, Michigan-based Hotel Investment Services Inc. (HIS) operates the hotel, conference center and golf course. Carl's Golfland has operated the driving range and golf store since 2000.
No archdiocesan funds were used to construct The Inn at St. John's, which is connected to the northeast side of the St. John's Conference Center and opened in January 2006 as part of the St. John's Golf and Conference Center. This phase of the St. John's redevelopment project was entirely funded by a private investor.