During the rule of the Ottoman empire revival houses were embedded in the remains of the old stone walls around the gate.

In the 6th century during the rule of Justinian the fortification system of the ancient town was expanded and the gate was strengthened.

The current structure of Hisar Kapia was formed in the Middle Ages (13th - 14th century AD).

A construction technique typical from the Second Bulgarian Empire is visible over the arch: a masonry of stones and brick pieces, filled with white mortar.

In the 17th and 18th century the rich merchants of Plovdiv built their houses over the ruins of the fortification walls around Hisar Kapia.