The historic Bose House is one of the oldest buildings in St. Thomas Square. Remnants of the 16th-century front building are the two-aisled Renaissance entrance hall with its impressive Tuscan columns and the portal with its Romanesque arch made from Rochlitz porphyry.
In 1710 the affluent manufacturer of gold and silver products, Georg Heinrich Bose, acquired the building and had it turned into a representative baroque merchant’s residence. The lateral wings and back building were newly erected at the time. The façade of the ffront building was adorned by a two-storied bay window. In the south wing at the back Bose installed a representative banqueting hall equipped with wall mirrors, a musicians’ gallery and a movable ceiling painting. This Sommersaal (summer hall) is used today as a concert hall. The Bose House is the present side of the Bach Archive and the Bach Museum.