English Heritage note that it is attached to Charlwood House (also Grade II* listed). The design is as the result of a competition won in 1961 by John Darbourne. The structure was built in 1964–67, and the interior fitted out 1968–69. The architects were John Darbourne and Geoffrey Darke, Darbourne & Darke.[1] It was later renamed as the Pimlico Beer Garden, then became the Moo Cantina Argentina restaurant for ten years, closing in 2022.[2]