Once the town house of the Bonsall family of Ffronfraith, it became a hospital after the death of Sir Thomas Bonsall in 1821.

18th century origins: 2-storeys plus attic and basement with a scribed render 3-bay front. Horned sash windows to the 1st floor in square recesses and a 4-pane attic roundel to front pediment. 2-storey splayed bay windows to the ground floor and basement. Central entrance with bracketed cornice on raised ground floor. Interior has been modernised for office use, main staircase remains.

CD/Domestic/SN58SE from Cadw

CHN 20/04/04