Wedderburn Castle was designed and constructed 1771 – 5 by the famous architect brothers Robert Adam and James Adam, with the work superintendent being James Nisbet, for Patrick Home of Billie, who had already completed Paxton House (using James Adam and Nisbet, with Robert Adam doing the interiors c. 1773). Battlemented three-storey elevations in the typical Adam Castle style, the apparent symmetry conceals a rectangular courtyard, originally filled by the 17th century (or earlier) tower house, also known as Wedderburn castle, of which only a heraldic panel remains. It was demolished in the early 19th century leaving the courtyard, accessed through an archway at the back.