Llangibby Castle was a substantial mansion built near the the medieval castle of Llangibby (Nprn: 94896) by the Williams family. It was a 2-storey, hipped roofed rendered building with a central triangular pediment above a round-headed alcove and stone porch. It is thought to have been demolished in 1951.

Reference: early postcard, dated c.1905.
RCAHMW, 2010.