Garden gatepiers to a cross terrace in the formal W gardens at Old Gwernyfed

The garden gate piers at Old Gwernyfed date back to around 1604 and are ornamental features similar to those found at Hay-on-Wye Castle. These square piers are made of channel-rusticated limestone ashlar and feature stepped necking mouldings, an arcaded frieze, and a moulded cornice. Each pier is topped with a stepped pyramidal cap that supports a fluted square pedestal and a ball finial. On either side of the piers, rubble garden walls extend for about 1.5 meters, incorporating piers within the garden that each contain an apse-headed niche facing back towards the house. The reveals of the piers hold pintles for double gates that open into the gardens.

Inside the garden, the terrace is approximately 100 meters wide and concludes with a splayed gate that is 3 meters wide, located directly opposite the piers. This gate is set within a rubble garden wall and leads to the driveway, exiting the formal garden.