Yes it is occupied. People are living there. Appearantly in some parts a lot of bikes get stolen. There are notices in windows like 'hands off my bike' or 'bring it back please'.
There is a very medieval feel about those places. Het Bagijnhof in both cities, Leuven and Diest. In Leuven resp. the big and the small one (the latter with the white facades). The clean masonry is like the original.
There are also no house numbers, at least there were none. Each house had a statue of another saint watching over the door.
cheers, Rob.