Pentre Cwm

Pentre Cwm is a two-storey house built from local limestone with sandstone dressings. It features slate roofs with tile ridges and sandstone-coped gables, along with stone chimneys. The main block, which corresponds to the original house, runs east to west and is highlighted by small ball-finials on its gables. It includes a two-storey gabled porch and chamber located centrally on the front elevation. There are lateral chimneys at the rear and to the left of the front elevation.

The main door, situated centrally in the south-facing porch, has a stone surround with a Tudor-headed lintel that features a label mould. This lintel displays the initials M/WA and the date 1636. A similarly sized plain sandstone doorway has been moved to the west elevation. The windows consist of single, double, or triple lights with stone mullions, which have been restored.

To the north, there are two gabled wings of similar size and materials, each with a coped gable and an end chimney. These wings have an entrance on the west side at a lower ground level, making them three storeys tall but the same height as the front range. They feature small mullion windows with two or three lights and a walled-up north doorway.

Inside, there are post and panel partitions forming the cross-passage, which have been partly restored. A 17th-century inserted fireplace is located in the small parlour on the left, featuring a moulded cornice and initials and date carved into the face of the bressummer. The kitchen, to the right, contains a large lateral fireplace that once included a bread oven on the left side, along with a very large kitchen fireplace with a voussoir arch in the north-west wing. Upstairs in the main range, timber-framed partitions carry unbraced plain purlins. There is a 17th-century chamber fireplace with a moulded cornice and ovolo on the jambs and soffit of the bressummer, complete with a stone hearth.

An unglazed timber mullion remains at the north side of the service end of the original house, featuring a low sill level.