modified over time to meet the changing needs of those around them. Reserved for residents' use for much of its life, the Grade II-registered landscape was, after the Second World War, made a public space for everyone's enjoyment, through the Roosevelt Memorial Act. It was then managed by the Royal Parks until 2018, when Grosvenor Britain & Ireland took over its management. Following an international Call for Ideas in 2018, Grosvenor confirmed that the square would be redesigned to enhance its contribution to the environment and local communities. In June 2022, Westminster City Council approved a proposal to transform the square into "an extraordinary garden with groundbreaking environmental credentials". It is expected that, once started, the works would take around two years to complete. Bentley Boys of the 1920s In the 1920s, four of the "Bentley Boys" – Woolf Barnato, Tim Birkin, Glen Kidston and Bernard Rubin – took adjacent flats in the fashionable south-east corner of the square, where their day-long parties became something of social legend. So common was the sight of their large, green sports cars parked ad hoc outside their flats, that for many years London cab drivers referred to the spot as "Bentley Corner". American presence Grosvenor Square was long a center of American presence in London beginning when John Adams established the first American mission to the Court of St. James's in 1785. Adams lived, from 1785 to 1788, in the house which still stands on the corner of Brook and Duke Streets. During the Second World War American general Dwight D. Eisenhower established a military headquarters at 20 Grosvenor Square, and during this time the square was nicknamed "Eisenhower Platz". Until 2009, the United States Navy continued to use this building as its headquarters for United States Naval Forces Europe. A statue of wartime president Franklin D. Roosevelt sculpted by Sir William Reid Dick stands in the square, as does a later statue of Eisenhower, and a statue of president Ronald Reagan. The square also contains the Eagle Squadrons Memorial. The former United States Embassy of 1938–1960 on the square was purchased by the Canadian government and renamed Macdonald House. It was part of the Canadian High Commission in London until 2014, when all the functions of the Canadian High Commission were transferred to Canada House in Trafalgar Square. In 1960, a new United States Embassy was built on the western side of