Golub was surrounded by a stone and brick defensive wall at the beginning of the 14th century. They were used many times during wars. In 1410, the town and the castle were captured by the Poles. Golub did not avoid the destruction again during the Polish-Teutonic war in 1414. During the Golub War in 1422, after the city was captured by Władysław Jagiełło, the king ordered to demolish the more important elements of city fortifications. In 1454, the city and the castle were without a fight in the hands of the insurgents. It was only in 1460 that Bernard Szumborski managed to take over the city for two years on behalf of the Teutonic Order. Eventually, by the Toruń Peace of 1466, Golub and its fortifications were included in the Polish state.
The town walls were in the shape of an irregular pentagon consisting of straight sections of walls. It were built in the opus emplectum technique, which means that their brick walls were filled with rubble and stones, flooded with lime mortar. On the southern fragments there are traces of decorating of walls in the diamonds with the zendrówka bricks. The wall was reinforced with 17 rectangular half towers, open from the town side and four closed, four-sided, small corner towers. Several-storey half towers were erected in front of the face of the wall, they allowed firing the foreground from the slit and window type arrowslits.
Four gates led to the town: Castle Gate (Toruń) from the north, Brodnica Gate (Lisewska) from the east, Dobrzyń Gate from the west and Błońska Gate from the south. Fortifications were on both sides strengthened by hydrated moat, while the eastern part was protected by the Drwęca river.
One of the four corner towers with a fragment of the wall and half towers on the north side have survived to this day, as well as half towers on the south-western section of the wall.