In 1925 there was a campaign to save the central garden from development and to keep it as a public open space. As a result, the Square was acquired for £5,000 by public subscription and opened on 15 October 1928 for use by local workers. This anticipated a wider involvement which culminated in the passing of the
London Squares Preservation Act 1931, "to provide for the preservation and restricting the user of certain squares gardens and enclosures in the administrative
county of London and for other purposes", in which the "Garden enclosure bounded on all sides by the roadway of Bridgewater Square" formed the first item in the Schedules incorporated in the Act. Section 3(1) of the Act stated that such squares can only be used for "authorized play, rest or recreation". No structures can be erected or placed on or over any protected square unless it is necessary or convenient, or in connection with the use and maintenance of the square for the authorized purposes. Section 3(10) of the Act provides that an offence is committed if the provisions of the Act are breached. There is a statutory duty under Section 11 to enforce the Act. Every person who fails to comply with its provision is liable to a penalty "not exceeding twenty pounds and to a daily penalty not exceeding the like amount". An article, "London Day by Day; City's Open Spaces", in the
Edinburgh Evening News for 27 January 1934 commended the Corporation of the City of London as keen to preserve every open space, saying that this "little oasis" had been threatened by building operations nearby and that "the City Corporation stepped in and not only secured the area for the work people in the neighbourhood but laid it out as a garden and erected a shelter". Immediately after the Second World War, in which the area was almost obliterated by bombing the ruined premises facing the Square were compulsorily purchased by order of the
Court of Common Council under the Acquisition of Land (Authorisation Procedure) Act 1946, but no mention was made of the central garden; and an article by the London Parks & Gardens Trust, "London Gardens Online" in 2013,
London Gardens Trust noted that the square is "now essentially part of the
Barbican Estate, it is used as a playground for a children's nursery", it having been leased to the
Bright Horizons City Child Nursery. In the 2020s the whole of the remaining garden area was enclosed by a padlocked palisade nearly eight feet high. Several buildings were erected there (all said to be temporary and thus not needing planning permission), and a stair and ramp leading to the nursery's offices in Bunyan Court were built on its western side. As a result, the Square, contrary to the provisions of the Act, is now inaccessible to the public. ==References==