At Penllwyn-Gwent there are traces of late 17th century wallpaintings in a recessed corner of blocked doorway in the kitchen on the ground floor. The paintings consists of a border pattern - stencilled black dot and dash design. The north east wall of the parlour has traces of red stencilled leaf pattern on ochre interspersed with stencilled black and red dots.

The house itself is in a ruinous state and the painted surfaces are in a very poor condition.

Reference: RCAHMW Wall Paintings Collection: WP10/17, 1975.