Cart Shed and Cider Mill at Tynyllwyn

The Cart Shed and Cider Mill at Tynyllwyn is a 19th-century structure built of rubble stone with a stone tile roof. It consists of a cart shed with a narrower cider mill located behind it, along with an attached ruined lean-to on the left side. The cart shed features an open-fronted gable end facing the yard. On the left side wall, there is a large splayed buttress, a blocked doorway leading to the cider house, and a ventilation slit further left, along with an added lean-to at the left end. The right side wall contains a ruined former opening to the cider mill, which is set back behind the wall of the cart shed.

Inside, the cart shed has a tie-beam roof. The right side wall includes a raking buttress that spans its entire length and houses small beeboles. In the cider house, a ruined cider press remains in situ.