Financial problems prevented Hunter from completing the project and in 1887 he sub-let the Dunmore Arms site to well-known Brisbane publican, Denis O'Connor.

Borrowing its name from the partially finished new government offices opposite, the hotel offered "tastefully furnished and decorated" accommodation to "Families and Commercial Gentlemen".

[2] The Treasury Hotel, located on the corner of George and Elizabeth Streets, is a three storey building with basement.

The hotel was originally L-shaped and an arched carriageway in George Street gave access to the rear of the building.

Pedestals carrying urns divide the parapet into sections, some of which contain balustrading, while others are solid with the title "TREASURY HOTEL" in raised lettering.

The upper two storeys retain much of the original detail, but some of this is obscured by modern sun hoods and an altered first-floor verandah which has raked posts.

Some herring-bone strutting is situated between the joists of the structure spanning the laneway off George Street beside the building.

The Treasury Hotel exhibits particular aesthetic characteristics valued by the community, including its prominence on the corner of George and Elizabeth Streets and its position as part of a group of buildings of complementary scale and fine detail that address Queens Park.