In 1577/78, the predecessor of the meat house was built with the demolished stones of St. John's Church. The first floor housed the butchers' stalls. On the upper floor was a hall for the cloth merchants' fairground stalls. Theater was also performed here. In 1880-1882, the new "Imperial Post and Telegraph Office" was built on the site of the former butchers' guild house. In 1883, the new post office building on the Obermarkt was put into operation. The building remained a post office until modern times.