The Jemdet Nasr period settlement (3100-2900 BC) extended over an area of of Mound B. Some was occupied by the single, large mudbrick building that was excavated by Langdon, and where the clay tablets were found.
After the destruction of the Jemdet Nasr building, occupation of the site seems to have continued uninterrupted, as pottery forms show a gradual transition from Jemdet Nasr forms into the Early Dynastic I repertoire.