Peithyn, including attached garden walls

Peithyn is a 2-storey house with three windows, constructed of rubble stone and featuring a slate roof and brick end stacks. The front and right gable end have prominent boulder footings, with the right gable end made of lighter stone and including an external flue, which indicates it is part of an earlier structure. The openings are offset to the right side and have stone segmental heads on the lower storey and wooden lintels on the upper storey. The openings consist of a central boarded door with a three-pane overlight and 12-pane horned sash windows. On the rear elevation, there is a stone lean-to on the right side, set back from the gable end, which has its original boarded door enclosed within a later lean-to, along with a later brick outshut added to its rear.

In front of the house, there is an attached garden wall made of rubble stone, built into a bank on the right side where the ground level is higher. The wall features renewed cement copings and monolithic gate piers on the left side.

Inside, the house has a central stair hall with a dog-leg stair. To the right, there is a panelled door leading to the former parlour, and to the left, a boarded door leading to the original kitchen, which retains a 19th-century tile floor.