Tan Llan

Tan Llan is an L-shaped two-and-a-half-storey primary house dating from the 18th century, with a one-and-a-half-storey service range attached to the northeast. The building is constructed from rubble and features overlapping stone coping on the gable parapets, along with moulded kneelers. It has tall end chimneys that are capped and have weather-coursing. The symmetrical main front, facing southeast, has three windows and showcases Victorian-style fenestration. The central entrance includes a part-glazed door that is situated behind a large 20th-century conservatory. On either side of the entrance are storied, canted bay windows with plain sash windows. The first-floor center and second floor also have smaller sash windows, with the latter set within gabled rubble dormers, featuring deep verges and plain bargeboards. At the rear, there are 19th-century single-storey extensions with modern windows and a contemporary upper door that provides access to the banked garden behind. The service range is set back and has three gabled dormers similar to the main house, with large six-pane Victorian sashes. Below these dormers are additional six-pane windows of varying sizes and an off-centre entrance to the left, which includes French doors, along with a plain off-centre stack to the right. There is also a modern extension to the northeast.

Inside, there is a fine full-height original oak dog-leg staircase with a moulded rail and turned balusters, along with a similar gallery at the top and decorative tread-ends; however, the lower flight has lost its balusters. The first floor features four 18th-century six-panel doors that are raised and fielded, accompanied by simply moulded architraves. There are also four similar doors made of painted pine on the attic floor. The ground-floor living room on the left has a fireplace constructed from sections of small-field 18th-century oak panelling, which is raised and fielded as before.