The building was built of stone on a rectangular plan with a centrally located large representative room in the ground floor (hall) and two smaller rooms at both ends of the house, serving as a parlour and a private chamber. These rooms were separated by wooden partition walls, also separating the room with stairs leading up to the west. The first floor was occupied by the owner’s private chambers (solar), but only on the sides of the building, as the hall filled the entire height of the building.
Due to the layout of the rooms, the fireplace was placed in the hall at the longer side wall, rather unusual, instead of at one of the shorter ends of the building, or as in older houses, which were heated with central hearths. The fireplace in Cochwillan was equipped with a massive chimney protruding from the outside, which became a distinctive element of the entrance façade of the building. The western room on the first floor was also equipped with a fireplace, but there the flue was led through the wall thickness.
Originally, the interiors were illuminated by two-light windows with openings topped with trefoils, set in four-sided frames. Two three-light windows, also crowned with trefoils, were distinguished by their size: one illuminated the hall from the south, and the other, set in a slightly pointed jamb filled with additional six openings at the top, from the north, at the height of the daise on which in the eastern part of the hall stood main table (opposite the parlour, room with stairs and entrance to the building). The covering of the 15th-century interior of the hall with a hammerbeam roof truss, rising to a height of 9 meters and extending over the three bays of the hall, was impressively solved.
The house in Cochwillan is considered one of the best examples of a late medieval, non-defensive residence in Wales. To date, it has maintained an almost unchanged appearance, and the value of the object is raised by the original timber roof truss. As the building is a private property, its interior can be visited only through pre-arranged reservations.
Smith P., Houses of the Welsh Countryside. A Study in Historical Geography, London 1988.
Website coflein.gov.uk, Cochwillan.
Website britainexpress.com, Cochwillan Old Hall.