The archaeological excavations in the Theater of Apollonia took place in two phases, in the period from June 4 – 15 July, and 12 – 25 September, and were focused on three main sectors, which were O, K and E. In sector O, excavations were focused on the surface of the orchestra/arena, and the natural floor was reached. A series of contexts testify the transformations that the Hellenistic orchestra underwent, starting from the first century b.CPPart of this processwas the removal of the first row of steps of the cavea as well as the eastern part of the Hellenistic proscenium, thus benefiting a relatively large area of the arena, that take now a circular in shape. Also, during the excavations in this sector, many small pits came to light, testifying to various constructive interventions, as well as two large pits, which can be thought to have served to house the animals that were used in the performances that were given in the amphitheater, or for any other function related to it. Sector K lies on the eastern and southern sides of the koilon. Due to the looting of stones and landslides, we have a transformation of this area. Under these conditions, it was thought to realize a modeling of the entire area, in order to achieve a view as close as possible to the original. Achieving such a level required the removal of landslides and then the modeling process. During the works to achieve this objective, many finds were collected, mainly ceramics, dated from the first through third centuries AD and less of the second and first centuries b.C. No seat or staircase was found in situ during the excavations.
Excavations in sector E, which is located in the upper eastern part of the koilon, revealed the position of an insulae and its extent with dimensions: length 70 m and width 12 m. In order to further follow different construction structures, it was continued with the opening of trenches II, III, IV and V. Dwellings were placed on foundations built with unworked limestone, on the rows of which tiles were also placed in some cases.
The walls of the buildings were made of bricks measuring 38/40 × 38/40 × 8cm, while the floor was made of beaten earth. Another group of walls show us that in this space must be several dwellings, which must have been built in different phases, as can be understood from the different construction techniques. The finds documented in this area date mainly from the fifth and fourth centuries b.C, up to the third, B. C, but there are also finds from the second and first centuries, albeit in limited numbers.