The construction of an earthen rampart was started shortly after the Bulgars settled in the Pliska plain (it has been suggested that these embankments may not have been built all at once), and the territory inside of this is known as the Outer Town, which consisted of multiple groupings of modest cottages with space in between for flocks of livestock and horses.
This seemingly unusual layout may have been chosen as the Bulgars had been nomadic prior to building their capital at Pliska, and when they began to cooperate with the local Slavs (which formed a strong majority of the new state's population) a mixed pastoral and agricultural economy developed.
The Inner Town, which was likely built later in the settlement's existence, consisted of a palace, basilica and aristocratic buildings inside a stone fortification.
The Inner Town was surrounded by the Outer Town which was in turn surrounded by the earthen rampart.

Overall, far less is known about the layout and contents of Pliska prior to the conversion to Christianity than afterwards.
No stone buildings have been dated with certainty from before the Bulgars converted to Christianity in 864/5, and many wooden buildings (which were initially presumed to have come from the pagan era) also appear to have been built later on.
 It's not clear which buildings were built in the decades immediately after 681.
When the earthen rampart was built, Pliska had a very low population.
Dimitrov's map based on the 1989 to 1991 dredging works in the Outer Town suggests that there were no more than six to twelve hamlet sized settlements there, while there might have been thirty or so by the tenth century.

There is however still no plausible explanation for why the earthen rampart and ditch built around Pliska encircled such a large area.
A few areas appear to have been inhabited by people who provided services or took part in craft production for the palace centre, and agriculture clearly took place within the earthen rampart around the Outer Town.
There was clearly a fair amount of open ground inside the earthen rampart.
Henning concludes that the settlement was initially built for military and strategic reasons, and could not really be considered a typical city (with all of the associated trade, production, and population) until the period after Bulgaria converted to Christianity in 864/5.
Most of the stone architecture in Pliska was built between this conversion and eventual Byzantine conquest of the city in 971.
 The buildings from this era show a clear Byzantine influence in their design and function.
For example, a 4 kilometre-long canal fed a large brick cistern that moved water from the Kriva river to the Inner Town via ceramic pipes.
 This cistern had attached rooms containing private baths.

Only certain parts of the archaeological site of the city have been properly investigated.
One of the most thoroughly researched is the Asar-dere area just to the west of the stone fortification surrounding the Inner Town.
Four clay-made furnaces have been discovered in this area, suggesting that Pliska possessed a specialized pottery making capabilities and an urban economy at some point during its development.

Initially, such finds were interpreted to show that early on the settlement relied upon pastoral and agricultural activities, and later developed sophisticated craft techniques.
This interpretation was further supported by the relatively late dating of the first occurrences of glazed ceramic ware found in Pliska.
At the very earliest these came from the late ninth century, though some certainly dated from the tenth and eleventh centuries as well.

However, more recent investigation of the Asar-dere area has shown that the area contained a large waste disposal site alongside multiple hearths and kilns all dating from the earliest occupation phase.
The content of the waste shows that ceramics were produced early in the settlement's history.
Other finds from this first phase of occupation (from the eighth until the beginning of the ninth century) include those connected with iron processing
The construction of an earthen rampart was started shortly after the Bulgars settled in the Pliska plain (it has been suggested that these embankments may not have been built all at once), and the territory inside of this is known as the Outer Town, which consisted of multiple groupings of modest cottages with space in between for flocks of livestock and horses. This seemingly unusual layout may have been chosen as the Bulgars had been nomadic prior to building their capital at Pliska, and when they began to cooperate with the local Slavs (which formed a strong majority of the new state's population) a mixed pastoral and agricultural economy developed. The Inner Town, which was likely built later in the settlement's existence, consisted of a palace, basilica and aristocratic buildings inside a stone fortification. The Inner Town was surrounded by the Outer Town which was in turn surrounded by the earthen rampart.
Overall, far less is known about the layout and contents of Pliska prior to the conversion to Christianity than afterwards. No stone buildings have been dated with certainty from before the Bulgars converted to Christianity in 864/5, and many wooden buildings (which were initially presumed to have come from the pagan era) also appear to have been built later on.  It's not clear which buildings were built in the decades immediately after 681. When the earthen rampart was built, Pliska had a very low population. Dimitrov's map based on the 1989 to 1991 dredging works in the Outer Town suggests that there were no more than six to twelve hamlet sized settlements there, while there might have been thirty or so by the tenth century.
There is however still no plausible explanation for why the earthen rampart and ditch built around Pliska encircled such a large area. A few areas appear to have been inhabited by people who provided services or took part in craft production for the palace centre, and agriculture clearly took place within the earthen rampart around the Outer Town. There was clearly a fair amount of open ground inside the earthen rampart. Henning concludes that the settlement was initially built for military and strategic reasons, and could not really be considered a typical city (with all of the associated trade, production, and population) until the period after Bulgaria converted to Christianity in 864/5. Most of the stone architecture in Pliska was built between this conversion and eventual Byzantine conquest of the city in 971.  The buildings from this era show a clear Byzantine influence in their design and function. For example, a 4 kilometre-long canal fed a large brick cistern that moved water from the Kriva river to the Inner Town via ceramic pipes.  This cistern had attached rooms containing private baths.
Only certain parts of the archaeological site of the city have been properly investigated. One of the most thoroughly researched is the Asar-dere area just to the west of the stone fortification surrounding the Inner Town. Four clay-made furnaces have been discovered in this area, suggesting that Pliska possessed a specialized pottery making capabilities and an urban economy at some point during its development.
Initially, such finds were interpreted to show that early on the settlement relied upon pastoral and agricultural activities, and later developed sophisticated craft techniques. This interpretation was further supported by the relatively late dating of the first occurrences of glazed ceramic ware found in Pliska. At the very earliest these came from the late ninth century, though some certainly dated from the tenth and eleventh centuries as well.
However, more recent investigation of the Asar-dere area has shown that the area contained a large waste disposal site alongside multiple hearths and kilns all dating from the earliest occupation phase. The content of the waste shows that ceramics were produced early in the settlement's history. Other finds from this first phase of occupation (from the eighth until the beginning of the ninth century) include those connected with iron processing
Pliska