@Jhowie: I think the whole issue here is that Raphael did survey the place and found out that the situation is not as clear as Brussels City Offices claims on their website.

They apparently do not own or run the entire place.  That is why naming the whole building after them seems to be a mistake.

If I understood the pictures correctly, the building is shared between multiple owners, who rent office spaces to small companies.

Brussels City Offices may stay on the map, sure, but I would suggest to have it as a POI inside the building.