Today, after numerous additions and alterations, you can admire the three-section building complex dating from the 13th century which consists of the Town Hall tower, the Gothic Imperial Chamber building and the baroque Town Hall. From 1663 to 1806 the Perpetual Imperial Assembly met in the Imperial Chamber. It was there that the well-known expressions “to put something on the long bench” (to postpone something) and “to sit at the green table” (to take important decisions) originated.
https://tourismus.regensburg.de/en/about-regensburg/more-sights-to-explore/architectural-monuments/old-town-hall.html