The house, excluding the later west wing, is protected as a category A listed building,[1] while the grounds are included in the Inventory of Gardens and Designed Landscapes in Scotland.

The gothic east wing was added to the tower house by the Drummonds, and the interiors remodelled, in the early 19th century.

[1] The house was purchased by Sir David Dundas of Dunira in 1858, who sold it on to English cotton merchant George Dewhurst of Lymm, Cheshire, in 1864.

[4] Aberuchill Castle was inherited by William Mostyn-Owen on the death of his father in 1947, and he was living there in "23 rooms or so" of one wing with his wife, the Italian writer Gaia Servadio, in 1968, but eventually sold it.

In 2005 it was reported that Russian steel tycoon Vladimir Lisin had purchased the castle and its 3,000-acre (1,200 ha) estate for £6.8 million.