Thanks for the additions!
Note that it is not needed to add postcode and city in most cases, because that is already mapped as areas.
Also about SDIL: a housenumber in Belgium can be "29B". It could very well be that there's a house number 29 with a box B next doors to 29B. I copied 29A and 29B from PICC. Do you have an indication that it is really both buildings with housenumber 29 and just a "box number" A and B?