Tan-y-graig is a two-storey house built in the early-mid 17th century and altered over later periods. It was probably originally timber framed, but the walls are now of whitewashed rubble, with some timber framing at high level at the rear. Slated roof with an axial and gable stack. The house has 3 bays, with the living hall at the centre, a parlour at the N, and kitchen at the S end with external door at the rear. The main living room has a large stone fireplace with fire lintel set to the rear, with internal oven. There are very fine moulded cross ceiling beams, the mouldings swept out at the ends, and subsidiary joints chamfered with pyramid stops. The house was possibly the residence of the bandit Edward Davies (Cneifiwr glas).
Source: DE/DOM/SJ24NW, from the Cadw listed buildings database
J. Archer, RCAHMW, 14.10.2004