Commonwealth Trading bank building, Bank building in Sydney Central Business District, Australia

The Commonwealth Trading Bank Building stands at the corner of Pitt Street and Martin Place, featuring Art Deco architectural elements with a stone facade. Its former banking hall has been transformed into retail spaces following major renovations completed in 2012.

The Commonwealth Bank was created in 1911 under Prime Minister Andrew Fisher, and its head office, designed by John Kirkpatrick, opened in August 1916 at Pitt Street and Martin Place. Extensions by E.H. Henderson and F. Hill followed along Pitt Street between 1929 and 1933, and a Martin Place annex was completed in 1967. From 2012 the building was refurbished, with the 1960s extension rebuilt and much of the 1916 and 1930s fabric stripped out.

From 1922 the Commonwealth Bank gave children rectangular money boxes printed with the building's exterior, roughly matching its proportions; the building became known as the "money box building". The same nickname was later applied to the State Savings Bank at 48 Martin Place, which appeared on some later boxes.

The building occupies the corner of Pitt Street and Martin Place, with the main entrance on the chamfered corner and the 1960s annex facing Martin Place. The former banking hall now holds retail space entered from street level. The site sits in the pedestrian core of the CBD, close to Martin Place station.

The building appears on multiple heritage registers including the State Heritage Register and the National Trust of Australia register. This recognition reflects its importance as a key example of Art Deco design in Australian banking architecture.