On the property Ferdinand Baumann planned new buildings. Therefore he demolished the the medieval house U Hřebeckých from 1381. The portal of the old house is still part of the passage. The new building was planned in 1937, the construction took place in 1937/38. The biography of the developer Baumann is also interesting. Typical for the building history of Prague in those years was that the top flat with roof terrace belonged to the owner of the house. Unfortunately, we do not yet know, in which of the former three flats with a roof terrace Baumann used to live. After the house was nationalised in 1948, it was returned to the successors of the owners in 1990. They sold it to a company. Today, the building is often called Štěpánská pasáž.
In my opinion (Frank), the house legitimately considered one of the best achievements of Prague's interwar architecture. Unfortunately, most of the passage is currently in poor condition and is also partly considered a public toilet.