Taunusstrasse borders Kochbrunnenplatz on its northern side, while the remains of the Kochbrunnen colonnade can be found on Saalgasse to the west. The architect Wilhelm Bogler built this in 1887/88 and filled the entire square with a Z-shaped ground plan. The colonnade was put back into use after the war in 1949, but was then demolished in the 1960s - only the wing on Saalgasse remained standing. However, its historical charm was destroyed by a glass porch in the 1990s.

The Kochbrunnen temple used to stand at the southern end of the colonnade, but was moved and renovated in 1976/77; the thermal water still flows there. 880 liters of thermal water per minute reach the surface at a temperature of 68.75 degrees Celsius.