This season, in insula 1 of the central quarter (Sector A), the excavation of the entire building was completed, concentrating the investigation on rooms 6, 7, 10, 11, and 12 (according to the nomenclature of the Adamesteanu excavations).

The materials found were similar in category and chronology to those found during previous seasons. These included architectural fragments in Tarantine style reused in wall foundations or in the levels of fill for the preparation of beaten earth floors, choroplastic fragments, bronze elements such as slag or roundels relating to the mint phase, military materials such as catapult balls and arrowheads, probably relating to the Punic war. In room 10, there was a substantial concentration of unusual bronze, lead, and iron objects similar to seals or for closing scrolls. The dating of the walls visible on the site and belonging to insula 1 was confirmed to be no earlier than the 2nd-1st century B.C., and therefore in this period the city of Herakleia underwent massive rebuilding prior to which the area was razed, leaving no traces of the earlier structures. However, it may be presumed that the perimeter of the insula did not undergo any substantial modifications. This early phase was only visible through the material finds: 3rd century B.C. architectural elements in Tarantine limestone, 4th – 3rd century B.C. black glaze pottery, and votive terracottas of the same date.

Three small trenches, alpha, beta and gamma, were opened along stenopos I, which confirmed the chronology documented during the previous campaign as layers datable by the pottery finds to the 5th – 4th century B.C., were present. No structures were present underneath the road surface. In sector B, situated on the summit of the southern edge of the plateau of Collina del Castello, the excavations continued in a north-westerly direction in order to uncover what was possibly part of the insula that had been disturbed by the construction of a modern rainwater drainage channel. The aim here was also to clarify, based on the stratigraphy, the stratigraphic relationship between Siria and Herakleia. The following emerged in this order: a beaten road surface on a NW/SE alignment, datable to the 3rd century B.C., coeval with the Hellenistic-Roman quarter, of which layers of roof tile collapse were already found during the first campaign in 2014; a level of material dating exclusively to the archaic period resting directly on natural; an oval pit, its contents suggesting it was a dump of food remains and the dismantling of a hearth, datable to within the first half of the 6th century B.C. and therefore attesting the latest phase of the archaic city of Siria prior to its destruction; a well 1.40 m in diameter whose fill is dated to the 3rd century B.C. by the presence of numerous reconstructable pottery forms, almost intact tiles and imbrices, architectural fragments, and miniature vases etc.