Bastion or garden feature, including ramps

This circular bastion or garden feature, with associated ramps, was constructed between 1956 and 1957 as part of the original design for the Golden Lane Estate, following a 1952 architectural competition. The initial design was by Geoffrey Powell, but the design was further developed and built by Chamberlin, Powell and Bon. The structure is primarily reinforced concrete clad in granite blocks. It comprises a circular bastion with a continuous seat on each side, a paved area in granite setts, and access via steps and a curved ramp with a steel balustrade.

The feature's significance lies in its role within the original layout of the Golden Lane Estate, which emphasized a north-south axis, and its ability to highlight the changes in ground levels. It is a prominent circular element within the formal grid of rectangular blocks, gardens, and terraces that characterize the estate. The design arose from a post-war urban landscape of derelict bombed warehouses, leading to the architects' focus on three-dimensional planning and the blending of picturesque elements with formal geometry, popular in the early 1950s. The design contains no natural elements. The development and importance of the Golden Lane Estate is further detailed in the listing for Great Arthur House.