Grand Lodge to Glan Gwna Hall

The Grand Lodge to Glan Gwna Hall is a picturesque Gothic-style building dating from the 19th century. It is a two-storey structure with a roughly L-shaped plan, constructed from regularly coursed and dressed snecked rubblestone blocks, featuring red brick chimney stacks. The slate roofs are adorned with red ridge tiles and fretted, cusped bargeboards that have carved finials at the overhanging verges.

The building has a wrap-around verandah on two sides, supported by rustic posts, and features a hipped roof that is interrupted by an open gable on the east side. This gable covers a six-light mullioned and transomed bay window with a stone base and leaded latticed lights above the transom. Above this, there is a similar half-dormer cross-window, also with leaded latticed lights and a shallow hipped roof that breaks the eaves. The south side has a bay window like the one on the east, but without a gable above it; there is a leaded cross-window above this with a dripstone to the gable end.

On the west elevation, there is a gabled porch that projects from the verandah, featuring a 20th-century diagonal boarded door. To the immediate left of the porch is an integral lateral stack with three circular terracotta shafts that are clustered together and decorated with twisted designs, along with moulded bases and capping. The projecting gabled range includes a three-light mullioned and transomed window, similar to the other ground-floor windows, with leaded latticed lights only above the transom and under a dripstone. The north side has a two-storey lean-to on the gable end, which is positioned above a rapid fall in ground level and features 20th-century fenestration.

The interior was not accessible at the time of the survey.