Although it continued to be occupied, a proper restoration was not undertaken until 1844 when John Campbell, 5th of Knockbury and 9th of Kilberry commissioned its rebuilding in 1844 by the architect David Bryce.

[1] John Campbell, 6th of Knockbury and 10th of Kilberry commissioned further extensions in 1873 by Charles Kinnear of Edinburgh.

[3] Following the death of Lt.-Col. John Campbell, 7th of Knockbury and 11th of Kilberry in 1928 the house was advertised for sale at which point it was described as having an estate of 7,000 acres (11 sq mi).

[5] The Kilberry Estate was sold to an older cousin, but Campbell regained possession of it once she turned 18.

The renovation work is expected to be completed by 2027, with the castle set to be reinstated as a private residence for its current family owners.