The row apartment house Two Golden Keys is of mediaeval origin with preserved mediaeval cellars. The house was re-built in the style of Baroque around the year 1688 and after the year 1700. Around the year 1786 the second floor was added and the courtyard wing was built. The arrangements in the style of Classicism were performed according to the architect Josef Kaur after the year 1830. The house is classified into the group of the special cultural memorials in Prague.