Statue of George Canning, Parliament Square

The Royal Institution of Chartered Surveyors (RICS) is a UK-based professional body for surveyors, founded in London in 1868. It works at a cross-governmental level, and aims to promote and enforce the highest international standards in the valuation, management and development of land, real estate, construction and infrastructure. Founded as the Institution of Surveyors, it received a royal charter in 1881, and in 1947 became the Royal Institution of Chartered Surveyors. With a London HQ and regional offices across the United Kingdom, plus international offices, it serves a 134,000-strong membership distributed over nearly 150 countries. The RICS is linked to other national surveying institutions, collaborates with other professional bodies, and, in 2013, was a founder member of a coalition to develop the International Property Measurement Standards (IPMS). It also produces cost information and professional guidance on valuation and other activities. In September 2021, an independent review exposed poor governance practices at the highest levels of the RICS organisation, prompting the resignations of the president, chief executive, interim chair of the governing council, and chair of the management board, in addition to the earlier resignation of the chief operating officer. The report was labelled an "appalling advert for our profession on the world stage".

A sculpture of the statesman and three-time Prime Minister of the United Kingdom, Edward Smith-Stanley, 14th Earl of Derby, is located in Parliament Square, London, England. The sculptor was Matthew Noble and the Grade II-listed statue was unveiled on 11 July 1874.The unveiling ceremony was performed by prime minister Benjamin Disraeli and those in attendance included Derby's son, Edward Stanley, 15th Earl of Derby, Charles Gordon-Lennox, 6th Duke of Richmond, Hugh Cairns, 1st Earl Cairns, Henry Liddell, 1st Earl of Ravensworth, numerous Members of Parliament and "a large number of ladies". At the conclusion of his speech, following the unveiling, Disraeli said: We have raised this statue to him not only as a memorial, but as an example; not merely to commemorate but to inspire. The four sides of the granite pedestal have bronze reliefs depicting Derby addressing the House of Commons during a debate on slavery, attending a Cabinet meeting, at a meeting of the Lancashire Relief Committee and at his inauguration as Chancellor of the University of Oxford.

The statue of Benjamin Disraeli is an outdoor bronze sculpture by Mario Raggi, located at the west side of Parliament Square in London. It was unveiled in 1883 and became a Grade II listed building in 1970.

The statue of Millicent Fawcett in Parliament Square, London, honours the British suffragist leader and social campaigner Dame Millicent Fawcett. It was made in 2018 by Gillian Wearing. Following a campaign and petition by the activist Caroline Criado Perez, the statue's creation was endorsed by both the Prime Minister of the United Kingdom, Theresa May, and the Mayor of London, Sadiq Khan. The statue, Parliament Square's first monument to a woman and also its first sculpture by a woman, was funded through the government's Centenary Fund, which marks 100 years since some women won the right to vote. The memorial was unveiled on 24 April 2018.

The Middlesex Guildhall is the home of the Supreme Court of the United Kingdom and of the Judicial Committee of the Privy Council. It stands on the south-west corner of Parliament Square in London. It is a Grade II* listed building.Constructed beginning in 1906 in what has been called "art nouveau gothic" style, initially the Guildhall served as an administrative and court centre for the County of Middlesex. It later served as a Crown Court building, until the establishment of the Supreme Court in the early 21st century.

The statue of Lord Palmerston is an outdoor bronze sculpture depicting Henry John Temple, 3rd Viscount Palmerston, located at Parliament Square in London, United Kingdom. The statue, sculpted by Thomas Woolner and unveiled in 1876, stands on a granite pedestal. It is Grade II listed.

The statue of Mahatma Gandhi in Parliament Square, Westminster, London, is a work by the sculptor Philip Jackson.

The statue of Robert Peel in Parliament Square, London, is a bronze sculpture of Sir Robert Peel, a former Prime Minister of the United Kingdom. It was sculpted by Matthew Noble and was one of the first three statues to be placed in the square.

The Supreme Court (initialism: UKSC or the acronym: SCOTUK) is the final court of appeal in the United Kingdom for all civil cases, as well as for criminal cases originating in England, Wales and Northern Ireland. It also hears cases of the greatest public or constitutional importance affecting the whole population.The Court usually sits in the Middlesex Guildhall in Westminster, though it can sit elsewhere and has, for example, sat in the Edinburgh City Chambers, the Royal Courts of Justice in Belfast, and the Tŷ Hywel Building in Cardiff.The United Kingdom has a doctrine of parliamentary sovereignty, so the Supreme Court is much more limited in its powers of judicial review than the constitutional or supreme courts of some other countries. It cannot overturn any primary legislation made by Parliament. However, as with any court in the UK, it can overturn secondary legislation if, for an example, that legislation is found to be ultra vires to the powers in primary legislation allowing it to be made. Further, under section 4 of the Human Rights Act 1998, the Supreme Court, like some other courts in the United Kingdom, may make a declaration of incompatibility, indicating that it believes that the legislation subject to the declaration is incompatible with one of the rights in the European Convention on Human Rights. Such a declaration can apply to primary or secondary legislation. The legislation is not overturned by the declaration, and neither Parliament nor the government is required to agree with any such declaration. However, if they do accept a declaration, ministers can exercise powers under section 10 of the Human Rights Act to amend the legislation by statutory instrument to remove the incompatibility or ask Parliament to amend the legislation. As authorised by the Constitutional Reform Act 2005, Part 3, Section 23(1), the Supreme Court of the United Kingdom was formally established on 1 October 2009 and is a non-ministerial government department of the Government of the United Kingdom. Section 23 of the Constitutional Reform Act limits the number of judges on the Court to 12, though it also allows for this rule to be amended, to further increase the number of judges, if a resolution is passed in both Houses of Parliament.It assumed the judicial functions of the House of Lords, which had been exercised by the Lords of Appeal in Ordinary (commonly called "Law Lords"), the 12 judges appointed as members of the House of Lords to carry out its judicial business as the Appellate Committee of the House of Lords. Its jurisdiction over devolution matters had previously been exercised by the Judicial Committee of the Privy Council. The current President and Deputy President of the Supreme Court are Lord Reed of Allermuir and Lord Hodge respectively.

Her Majesty's Treasury (HM Treasury), sometimes referred to as the Exchequer, or more informally the Treasury, is the department of the Government of the United Kingdom responsible for developing and executing the government's public finance policy and economic policy. The Treasury maintains the Online System for Central Accounting and Reporting (OSCAR), the replacement for the Combined Online Information System (COINS), which itemises departmental spending under thousands of category headings, and from which the Whole of Government Accounts (WGA) annual financial statements are produced. The possessive adjective in the department's name varies depending upon the gender of the reigning monarch.

Nelson Mandela is a bronze sculpture in Parliament Square, London, of former President of South Africa and anti-apartheid activist Nelson Mandela. Originally proposed to Mandela by Donald Woods in 2001, a fund was set up and led by Woods's wife and Lord Richard Attenborough after the death of Woods. The then Mayor of London obtained permission from Westminster City Council to locate the statue on the north terrace of Trafalgar Square, but after an appeal it was located in Parliament Square instead where it was unveiled on 29 August 2007.

The Judicial Committee of the Privy Council (JCPC) is the highest court of appeal for certain British territories, some Commonwealth countries and a few UK bodies. Established on 13 August 1833 to hear appeals formerly heard by the King-in-Council, the Privy Council formerly acted as the court of last resort for the entire British Empire (other than for the United Kingdom itself), and continues to act as the highest court of appeal for several independent Commonwealth nations, the Crown Dependencies, and the British Overseas Territories.Formally a statutory committee of Her Majesty's Most Honourable Privy Council, the Judicial Committee consists of senior judges who are Privy Councillors: they are predominantly Justices of the Supreme Court of the United Kingdom and senior judges from the Commonwealth. It is often simply referred to as the 'Privy Council', although the Judicial Committee is not the same as the Privy Council of the United Kingdom, but rather a part of it. In Commonwealth realms, appeals are nominally made to "Her Majesty in Council" (i.e. the British monarch as formally advised by her Privy Counsellors), who then refers the case to the Judicial Committee for "advice", while in republics in the Commonwealth of Nations retaining the JCPC as their final court of appeal, appeals are made directly to the Judicial Committee itself. The panel of judges (typically five in number) hearing a particular case is known as "the Board". The "report" of the Board is always accepted by the Queen in Council as judgment.