Gas Retort House, St Audrie's Holiday Centre

The Gas Retort House at St. Audrie's Holiday Centre is an agricultural building dating from around 1855, likely designed by architect John Norton. It is constructed from Sampford Brett red sandstone random rubble with brick and Bath stone dressings, topped with a double Roman tiled roof. The building features a louvred hood on the left side and a square brick stack rising from a stone base in the southeast corner.

The structure has an L-plan layout, consisting of a two-cell block oriented east-west and a single-cell north wing, all in a Gothic style. It is a single-storey building with a layout of 1:2 bays. The gabled north wing includes an unglazed rose window, while the right return has a damaged segmental doorway with no doors. The north front features segmental-headed long two-light casements that are partly boarded, along with outer bays that have segmental-headed stable doors and a damaged rectangular light above to the right. The right return faces the remains of a gas holder and includes a quatrefoil opening in the gable end, as well as a two-light segmental-headed mullioned window with wooden cusped tracery heads.

Inside, the left-hand room, as of the last survey in October 1983, only had a small segmental-headed opening into the chimney visible, and a louvred opening in the roof that was in poor condition. Any remaining features were obscured by agricultural machinery. This gas retort house was originally built to supply gas to St. Audries, which is now a school, and is one of the earliest estate gasworks. Welsh coal for the gasworks was landed at a now-vanished quay about half a mile to the north. The building is listed primarily for its historic interest and was noted to be in poor condition at the time of the survey in October 1983.