The tower-fortresses of Middle Bronze II Tilmen were a fundamental element of the urban defense system and were in close relationship with the casemate walls. Fortress P protected the north-western corner of the Lower Town casemate circuit. The access to the fortress, on the southern side of the structure, obviously opened towards the inside of the city. A corridor, which opened on one side onto two stairwells, led at its end to two square rooms, while monolithic thresholds marked the access to the different sectors. The fortress, after the destruction at the end of Middle Bronze II, was reoccupied during Late Bronze I. A little further south stands the fortress tower P2, which is in a worse state of preservation.

In addition to the monumental city gate K-1 and K-6, two other smaller passages were located respectively along the northern (K-2) and western (K-3) sections of the outer walls. Although both are characterized by the use of a rather accurate building technique, K-2 and K-3 did not have a monumental character, but rather constituted narrow posterns, unsuitable for the passage of carts or pack animals.

The Middle Bronze II city was characterized by a partition into acropolis and lower city, both surrounded by their own circuit of casemate walls. These walls were made up of a series of rooms, which were positioned side by side and created a continuous external front joined at intervals by fortresses located in strategic defense points. The remains of long stretches of the outer wall, which continued around the lower town for more than 900 meters, are clearly visible on the surface, especially in the northern part excavated by the Turkish expedition.

Around the Lower Town, areas R, V and Z provided important information regarding the organization of the outskirts of the city during the Middle Bronze Age. Area R is located on a basaltic ridge to the North-East of the Karasu river. In fact, a surface survey of the area has revealed a conspicuous stone wall that ran along the modern artificial lake, perhaps connected to the city defensive complex or to some sort of control system of the watercourse. About 150 meters to the North of the ridge, an ancient road and a small Middle Bronze I necropolis have been identified.

Area V is located West of the Lower Town, in correspondence with a section of the basalt plateau that had been the subject of a series of illegal excavations. Although no structures have been found that can be attributed with certainty to a funerary sector, investigations have revealed traces of ancient open-air refuse areas, perhaps in connection with production activities, dating back to the beginning of the Middle Bronze Age.

Area Z is located South of the main mound and has been subjected to an emergency intervention following some agricultural digging activities. An open-air area, to be interpreted probably as a working area, dating from the early Middle Bronze Age with plenty of miniaturistic ceramic forms was brought to light.