Rooms on the western side of the cellar are covered with edgeline vaults that are carried by the strong quadrangular pillars. Part of cellar's partitions were probably built later. A strong wall separates the western side of the cellar from the noticeably lower building in the east. An open arcade-gear is on the square-side of the building. Current main entrance with a stairway was built in the 18th century. Low annexes on the western side of the building were built at the end of the same century. During the Middle Ages, a trade hall and a torture chamber/wine cellar were located on the first floor. In the Middle Ages, there was a court on the second floor and in addition a coffer, a room for keeping accounts, representative hall for citizens, parlour of the Town Hall () and the kitchen of the Town Hall. The massive facade supporting on the open sharp arcade-gear is cut in groups by narrow quadrangular windows, which are a bit bigger than those on regular dwelling houses. These groups of windows mark the three most important offices and representational spaces of the main floor, starting from the tower: town hall writer's room (), single-nave town hall room, which was the hall meetings room for the town hall lords, and a two-nave citizens hall. From the tin squared windows, town hall lords could see several houses under the town hall: weighing house, pharmacy, coin mint and a jail. At the end of the facade is a parapet reminding of the upper part of a fortress wall with decorative loop-holes. The shape of the tower following directly the example of the Church of the Holy Ghost and a rear parapet on the facade's cornice line refer to the indirect contacts with the sub-Rhineland building art. The main facade is decorated by a defensive parapet and dragonhead-shaped gargoyles. It is pervaded by an arcade, which consists of nine arcs and is the length of almost the whole building. In addition, the facade is supported by eight pillars. It was comfortable for merchants to shelter under the arcade in case of rain. One of the pillars of the arcade-gear of the town hall was used as a pillory. Criminals were chained to it to display them to the townspeople, so that they could dishonor and mock them. It had a neck rail and manacles. The arcade ends with the town hall's main entrance in the right side. The main door differs from other smaller doors and hatches with beautiful statuary jambs and three stairs that lead to the door.