Building VIII was located east of building VII (the building with the peristyle yard) across a 5.5 wide street covered with gravel. The building is partially studied, but its eastern section is not excavated yet. The orientation of the building was to the west-east. It was 36.80 m wide (north-south) and the excavated section (west-east) was 23.50 m long. The peristyle yard (encircled with colonnade) was central to the building in its initial period of construction. Around the yard and to the West of it, there are 11 rooms explored with rectangular layout. The excavated long hallway entrance to the building is on the northern side. There were separate exits to the street on the West for each of the five rooms on this side. The walls were erected with no foundations, straight on the rock. Their dado was made of roughly hewn stones with white masonry that was 0.60 m wide and 1.10 m high. Then over it there was an evening row of ceramic bricks and over it – a construction of air-dried adobe bricks sized 0.40 by 0.40 m and 8 to 10 cm thick plastered with a thick layer of white masonry. There was a second floor constructed of adobe and wood. The roof was made of tiles – imbrices and tegulae – on a wooden structure.
The finds – pottery, pottery weights for a weaving loom, various bronze coins – suggest that the ground floor rooms were used mainly for production and commerce while the residential rooms were only on the upper floor. In close vicinity to the peristyle yard, baths were found: a rectangular bathtub of ceramic bricks with hydrophobic masonry and, next to it, a stone tub hewn in the rock of the shape and size of a human body. Both facilities were hewn in the rock and a channel was taking away the waste water. At the close of the 4th century, probably during the Goth wars of 376-378, the building was destroyed. A second period of inhabitance is evidenced by finds dated to the close of the 4th c. to the 80s of the 5th century. A number of changes were made back then: the west street entrances were bricked up, the colonnade around the central yard was also bricked and the yard was made into a separate room.
It is not certain whether the building was inhabited in the 6th century – the finds of that period are single and might have landed there accidentally. During the period from 9th – 10th century, in the ruins of the late Antiquity building No VIII, three early medieval Bulgarian semi-dugouts were dug. At the end of the 10th and early 11th century, on the same spot, a ground room of stone walls was built with mud masonry and rectangular layout, which was part of the nearby Byzantine bishop complex.