In 1702 Bruce was commissioned by the burgesses of Stirling to design a new tolbooth for the town. Bruce provided only sketch plans, which were executed by local masons between 1703 and 1705. Bruce's last country houses were Harden House (now known as Mertoun House), built for the Scotts in the Borders, and his smallest house, Auchendinny in Midlothian. His final work, in around 1710, was for Nairne House, for the Jacobite Lord Nairne. The house was not completed until two years after Bruce's death, and the extent of his involvement is unclear. Nairne House was demolished in 1760, although the cupola was retained and installed on the roof of the King James VI Hospital in nearby Perth.