Thanks for the changeset for the monastery part, but i think the church part is still active according to eglise info. Note 3634974 was pinned on the closter , and i see that for another exemple : https://www.openstreetmap.org/way/143756698#map=17/49.63976/5.35206&layers=N that the curch and monastery is separeted (even in Orval it's the monastery who operate).  For the administrative part  ; maybe just a buiding=religious ? 