The Junior Ghostbusters Clubhouse is the official headquarters for the Junior Ghostbusters.
The Junior Ghostbusters Clubhouse is located in the basement of Jason's parents' place. It is plastered with posters, including one for Manhattan Island. A computer is set up there as well. After the Boogieman broke into the clubhouse, a ghost detector was set up from household items like a baby mobile. Around the corner from the clubhouse's street entrance stairwell is the family garage where Ecto-Junior resides.