PHILIPPOPOLIS (Zheni Tankova – RAM.Plovdiv@gmail.com) The site was situated under the southern slopes of Trimontium, close to the forum, the stadium and the theatre. Sectors of two decumani and two cardines with three construction periods and six adjacent insulae with 13 buildings were discovered on an area of 0.7 ha. A fortification wall built after the middle of the 6th century AD crossed the site. The strata were 3.60 m deep and six construction periods from the 4th century BC to the 14th century were documented. In 2010, the explorations continued in insulae Nos. 4, 5 and 6, decumanus No. 2 and cardo No. 2. The earliest construction period dated to the Early Hellenistic period. The walls built of dry syenite ashlars were 50 – 60 cm wide and later walls were constructed over them. The next construction period dated from the end of the 2nd century BC to the 1st century AD. The walls were built of boulders bonded with mud and later, they were reused as foundations for the buildings of the third construction period dated from the 1st to the middle of the 3rd centuries AD. Monumental buildings constructed of roughly cut stones and ashlars bonded with mortar, with walls 60 – 65 cm wide, were typical of the third construction period. A major fire was documented between the third and the fourth construction periods. During the fourth construction period, dated from the end of the 3rd to the first half of the 5th centuries AD, rooms were constructed over the preserved structures and the debris of the third period.