Pen-y-Glyn is thought to have been a chapel dating from c.1880. It is now (by 2003) a house of one storey and attic, with stone walls and a slate roof with a red tile ridge. Entry is via a lean-to porch against the south-west gable, with window over. Three currently flat-headed windows are in the south-east return. A shallow garden strip in front of the south-west gable is bounded by a stone wall with iron railings and gate; there are stone gate piers with large ball finials.
