Swiss National Bank (left) and Bundeshaus (right), Kochergasse is between the two buildings
Until 1740, Kochergasse was known as Judengasse (Jewish Lane) after the Judentor (Jewish Gate). The Judentor was originally a fortified tower on the western city wall. The tower was built between 1458 and 1473. It was demolished around 1678 to make way for the Ballenhaus. It was originally located about 20 m (66 ft) from the modern Federal Palace of Switzerland building at Bundesplatz 15.
Between 1740 and 1917 it was known as Inselgasse after the Inselspital (Island Hospital). It was changed in 1917, in memory of Emil Theodor Kocher.