on number 53 is norra bankohuset ("northern [national] bank building"), built in 1770 and enlarged in 1880, it used to house the note-printing works and money depot of riksbank until its relocation to the present riksdag building in 1906. the window gratings on ground level and the small windows above still reminds of its former function. the defective foundation works caused huge crevices in fronts facing the alley, and while the damaged have been repaired, there are still windows inclined windows in the alley as a reminder. the small portal facing österlånggatan is from the early 19th century. an arched passage over norra bankogränd connects the building to södra bankohuset, the former main building of the national bank facing järntorget.