This part of the building is not showing up correctly on multiple maps, there's a courtyard on the 1'st floor (2'nd floor for Americans). But it's not show because the building is rendered on top. Someone did some magic with the other half of the building making it part of a set or something. Feel free to fix if you know how :)

PS. I've made it as two buildings, as it's two different "matrikel". Build at different times.