The dimensions and the apparent location of the entry in the middle of the southern wall indicate a lack of interior partitioning. Other important early residences also had similar great rooms (Trier, Metz, Ingelheim, Westminster, Caen, Poiters). There were other stone buildings with still unknown functions and furthermore, there must have been a well, a granary and storehouses.

This archaic type of building with characteristic foundations (as far as excavated and visible, are marked in violet) helps indicate its date and therefore construction is attributed to Emperor Otto, although the twelfth century is not impossible. Compared to the richly decorated, two-storeyed palaces of this era (Goslar, Braunschweig, Wartburg, Wimpfen, Gelnhausen) this later date seems highly unlikely. In 1180 duke Henry "The Lion" was formally deposed at Werla, before the royal army invaded his possessions. After this time various neighboring castles were supported by Goslar but there was no further mention of Werla.