The main hallway terminates in the Vestibule which may have also been used as a ballroom. The vestibule is decorated on opposing walls with two forty- foot long marine scenes of the north shore of Sydney Harbour and Edinburgh from the Firth of Forth.
The Daily Telegraph in 1884 described the room as “erected for purposes of entertainment”. The furnishings from the room in the 1897 auction of the contents suggest that the room was used in the 19th century for a number of activities including dining, general sitting and card games. A number of the items of furniture originally used in the room were Japanese in style such as a 6-fold screen and numerous lanterns; a reflection of the prevailing taste for orientalism.