Ballhausplatz 2 is the official residence of the Federal Chancellor. It was constructed in 1717/19 by the architectJohann Lukas von Hildebrandt and expanded in 1766 by Nicolò Pacassi under the guidance of Chancellor Wenzel Anton Graf Kaunitz. Originally called the Geheime Hofkanzlei, it was expanded in 1881 and again in 1902, when the Haus-, Hof-, und Staatsarchiv were added on the site of the former Minoritenklostermonastery, next to the Minoritenkirche. The main facade has largely remained the same since its construction by von Hildebrandt. The interior is richly decorated with stucco. The building suffered heavy damage during World War II due to aerial bombardments, but was repaired. Located on the first floor are the offices of the Federal Chancellor, federal ministers, and conference rooms. The Government of Austria regularly meets here for cabinet meetings. Ballhausplatz 2 played an important role in European politics for over 250 years. It was here that Chancellor Klemens Wenzel von Metternich held the Congress of Vienna, which was held after Napoleon Bonaparte's defeat in 1814 and resulted in the "balance of power". Chancellor Engelbert Dollfuß was murdered by Nazis in his office in 1934. His successor Kurt von Schuschnigg gave his farewell speech shortly before Austria was annexed by Nazi-Germany in 1938 with his famous closing words "Gott schütze Österreich". After 1945 and the restoration of independence the offices of the Federal Chancellor were once again located here. During the Schüssel coalition between the conservative ÖVP and the far-right FPÖ in the years 2000 to 2007, regular demonstrations against this government have been held in front of the Chancellor's office. Ballhausplatz 1 is the address of the Office of the President of Austria. The offices of the president himself are located in the Hofburg Imperial Palace.
In 2011, Vienna decided to honour Austrian Wehrmacht deserters. On 24 October 2014, a Memorial for the Victims of Nazi Military Justice was inaugurated on the Ballhausplatz by Austria's President Heinz Fischer. The monument was created by German artist Olaf Nicolai and is located opposite the President's office and the Austrian Chancellery. The inscription on top of the three-step sculpture features a poem by Scottish poet, Ian Hamilton Finlay, made up of just two words: all alone.