Adam's other houses of the 1730s include House of Dun in Angus, Tinwald in Dumfriesshire, Lawyers House in Perthshire, and Haddo House in Aberdeenshire. His early, unexecuted design for House of Dun, a collaboration with the Earl of Mar, is interesting, as it appears to show a traditional tall Scottish tower house, complete with spiral stairs within the walls, but externally clad in neo-classical detailing; Adam clearly took some inspiration from the Scottish vernacular. Chatelherault, the Duke of Hamilton's "Dogg Kennel" and hunting lodge near Hamilton, was completed in 1743. His redecoration of the Duke's apartment in Holyroodhouse was Adam's most important interior design commission. In the 1730s Adam extended Taymouth Castle and laid out gardens, although his work was largely demolished to make way for the present building in the 19th century. Adam's approach here mirrored the work of Bruce at Balcaskie, extending a Scottish tower house to form a near-symmetrical architectural composition.