Old house, including attached bakehouse, at Llettyrychen Fawr Farm

A 2-storey house of rubble stone with roughcast front, and slate roof to the R-hand unit, but collapsed to the L-hand, behind coped gables. A central stack has been removed. In the L gable end is a corbelled 1st-floor stack, but taken down to below ridge level. Windows have mostly lost their glazing. The front has a C16 doorway L of centre, in a chamfered dressed-stone surround with 4-centred head. To its R is a window then a former doorway, now partially blocked, to the original hall, and with a single window to the L. The upper storey has 3 windows. In the R gable end is the scar of a former attached dairy. A single 4-pane horned sash window is in the L gable end, where there are dressed stone jambs of an earlier window. In the rear elevation the wall has collapsed on the R-hand side. The L-hand side has a lean-to hall bay, with small single-light window in its side wall, to the R of which are windows in each storey with wooden lintels, and a wide inserted doorway.

Attached to the rear L, or NW angle, is a 2-storey former bakehouse of rubble stone and bigger quoins, behind which is a roughcast lean-to attached to the rear of the main house.

The house has a 2-unit lobby-entry plan. The hall, on the R side, has a timber lintel to its large fireplace. The upper-storey floors have collapsed. The room above the hall has 3 C16 arched-brace trusses. In the bakehouse is a large fireplace.