In the early 12th century this area of town was essentially the entry point for anyone coming into the city to trade, as the customs post was located here. In fact, all customs duty was paid here up until the 16th century, meaning that the area is replete with history. It is essentially a walled courtyard with two gates at either end, which has remained the same for many centuries.
The houses near to the Ungelt still contain remains of the old Romanesque houses that were built here at the turn of the 13th century. Most of these remains are found in the basements, as due to flooding the height of houses was increased during the next few years, therefore leaving what would have been the ground floor actually underground.