During the year 2018 the excavations in the amphitheater of Durrës were focused on its southern part and the aim was to understand this area, as well as the transformations that occurred in the structures placed in this space. Only one excavation sector was opened which was called sector α. At the end of the excavation, was identified the presence of a quadrangular building, 4.20m wide and of undetermined length, due to the absence of the fourth wall. The walls are formed by two faces built with medium-sized stones, and bound with abundant lime mortar. The building apparently belongs to the medieval period and its destruction is thought to have occurred during the late phase of this period. Next to the building, two others walls were discovered, probably from the Ottoman period, which are thought to have served as terrace walls in connection with an open space (perhaps a courtyard?). The excavation also showed the presence of a well, whose diameter is about 1.50m and whose main wall was made with stone blocks. Based on the stratigraphic interpretations, the well is thought to belong to an earlier phase compared with the aforementioned walls. An exact chronology of its use remains difficult to determine due to the significant interventions suffered by the constructions of the modern periods. The material that came out during the excavation, mainly consists of ceramics of different types and shapes, metal objects and very few glass objects.