Walls and gatepiers at entrance to Plas Coch

The entrance to Plas Coch features two gateways positioned closely together, with the right side serving as the main entrance. The main entrance includes two octagonal sandstone ashlar piers, each with a plinth and an octagonal conical cap. Vertical sandstone blocks with recessed moulded panels are set between the piers, although the left-hand pier is damaged. On either side of the main entrance are oval pierced ashlar panels with inset fleur-de-lys designs, along with a moulded sandstone plinth and coping. To the left of the main entrance are two additional piers with a single oval pierced panel between them.

To the south is a second entrance, likely added later, which is flanked by octagonal piers and decorative wrought iron gates. The two entrances are connected by rubble walling. The northern wall consists of five dressed sandstone piers, spaced approximately 10 meters apart, which are squared at the base and become octagonal above wall level, topped with octagonal conical caps. Centrally between these piers are vertical sandstone blocks with recessed moulded panels, with rubble walls in between and a moulded sandstone plinth and coping. The southern wall features three octagonal sandstone piers with plinths and octagonal conical caps that rise above wall level, also set about 10 meters apart, with a squared sandstone block positioned centrally between them.