The home and business place of banker William Duff of Braco from 1703 to 1722, the house has borne his name ever since.

[2] Each bay on the first floor has a small, twelve-pane sash window,[3] and the two outer bays on the second floor each have a window, raised through the eaves of the roof, with carved stone pediments, the western one dated 1694 with initials I D and a thistle finial, the eastern one decorated with a star and a fleur-de-lys and initialled M I.

[1] From 1703 to 1722 however, the house served as the home and place of business for William Duff of Braco and Dipple, for whom it is named.

[3] Duff and his brother Alexander enriched themselves by lending money to estate owners in a period when harvests were poor.

Many landowners in Scotland had lost money on the Darien scheme, and when lenders defaulted on their loans, the brothers would take ownership of the properties that had been offered as security.