In 1799–1800 Bache Thornhill (High Sheriff of Derbyshire in 1776) added a substantial south-facing extension, doubling the size of the house.

The new two-storey, five-by-five-bay addition was designed in a Palladian style by architect Lindley of Doncaster.

The entrance front to the south has the three central bays projecting, with a semicircular Doric porch with balcony over, and all covered by a pediment.

His descendant William Pole Thornhill, High Sheriff 1836, died in 1876 and the estate passed to McCreagh-Thornhill relations through his sister Emma Thornhill's daughter Eva Helen Emma Hurlock (the wife of Michael McCreagh).

In the 1950s it passed to the Davie-Thornhill family (Eva and Michael's daughter Flora Helen Francis McCreagh-Thornhill married Bertie Davie).