Tri Dyffryn

Tri Dyffryn is a 1½-storey house featuring pebble-dashed walls and a slate roof. It has a large chimney stack on the right and a rear lateral stack set back from the left gable end. The original double-fronted design includes a central lean-to porch with a boarded door and false strap hinges. This porch is flanked by 2-light casement windows that have diamond leaded glazing. Gabled half dormers are present, featuring similar but shorter windows. On the right side, there is a higher 19th-century 2-storey gabled bay with 2-light windows on each storey. The left gable end has a small attic window on the left side.

While not inspected, a survey by RCAHM Wales noted a lintelled fireplace and a bread oven in the right-hand room. The ground-floor rooms are also reported to retain ceiling beams.