The city defensive walls in Świecie (Schwetz) were built in the 14th century, after moving the town near the castle in 1338.
The walls circuit was rectangular. It was reinforced by about 19 half towers, open from the inside. Three gatehouses led to the town: the north gate leading to the town center, the Bridge Gate connecting to the Old Town on the right bank of Wda and the Chełmno Gate from the south.
Until today, a fragment of the defensive wall with the open towers, near the parish church, has been preserved.