Terraces and ornamental structures to SE of Cefn Mably

The terraces form 2 levels overlooking the Rhymney valley and are retained by rubble-stone and concrete revetments on the S and E sides. They have concrete and stone steps and piers. The upper terrace is laid with tarmac. It has a round turret at the SE angle and a low parapet on its S side in which there are 2 pairs of piers, on the W side leading to an octagonal turret on the W wall (erected in 1943 and dedicated to Dr Powell), and a mid C20 gazebo overlooking the valley below. The gazebo is built of coursed rubble and has a pyramidal stone-tile roof. The W and N sides are open, the S and E sides have 2 windows each.

The easternmost pair of piers on the upper terrace lead to concrete steps to the lower level (the winter garden), where there is a pavilion against the N wall. It is built of coursed stone with a central doorway flanked by windows, with similar windows to the return elevations, all with concrete architraves. A portico of fluted concrete piers and moulded entablature supports the former flat roof which was used as a viewing platform.