City of London Corporation
The historic municipal corporation and local authority governing the City of London, while also managing major civic, cultural, educational and open-space institutions.
Last updated August 22, 2026
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Overview
The City of London Corporation is the historic municipal authority for the City of London, the small central district commonly known as the Square Mile. The City is the historic core of London and a major international financial centre. The Corporation is legally styled the Mayor and Commonalty and Citizens of the City of London. In this context, “corporation” refers to a municipal corporation rather than a commercial company. The Corporation combines the functions of a local authority with responsibilities that are unusual among British councils. It provides local government services within the City, including planning, licensing, environmental management, public health, community services, cultural provision and the maintenance of streets and public spaces. It also operates or supports a substantial portfolio of institutions and assets, including the Barbican Centre, the Guildhall School of Music and Drama, City of London schools, historic markets, libraries, the City of London Police and extensive open spaces such as Epping Forest, Hampstead Heath, Highgate Wood and Queen's Park. A second major part of its role is its relationship with the financial and professional-services industries concentrated in the City. The Corporation promotes the City as a business and financial centre, represents aspects of the City's interests in national and international policy discussions, and manages a significant commercial property portfolio. This advocacy role exists alongside its statutory local-government responsibilities and does not make the Corporation a private-sector financial-services company. The institution has medieval origins. London’s civic administration developed from Anglo-Saxon assemblies, courts and customs, while the Corporation's legal existence is generally regarded as having continued by prescription because the City had long operated as an incorporated community. A royal charter issued by William the Conqueror around 1067 confirmed rights previously associated with London. Later charters and legal instruments preserved or expanded the City's privileges. Around the late twelfth century, London obtained the right to have its own mayor, an office that subsequently acquired the title Lord Mayor of London. The Corporation's governing structure includes the Lord Mayor, the Court of Aldermen, the Court of Common Council, the livery companies and the wider body of Freemen of the City. The Court of Common Council is the principal policy-making body, while the Court of Aldermen retains important ceremonial, electoral and institutional responsibilities. The City is divided into wards, each electing an alderman and common council members. Unlike most local authorities in the United Kingdom, the City's electoral arrangements include a business vote, allowing qualifying organizations operating in the City to appoint voters in addition to resident electors. The Corporation's special constitutional position has been repeatedly tested and reaffirmed. Its privileges were removed through a quo warranto process under Charles II in the 1680s, but were restored after the Glorious Revolution by legislation enacted under William III and Mary II. The Corporation was not reformed by the Municipal Corporations Act 1835, and its distinct institutional arrangements have continued to evolve through later legislation and Acts of Common Council. The name changed from Corporation of London to City of London Corporation in 2006. The change helped distinguish the authority governing the Square Mile from the Greater London Authority, which has regional responsibilities across Greater London. The Corporation remains active as a local authority, civic institution, landowner, service provider and representative of the City’s historic and economic interests.
History
The City of London Corporation developed from the civic institutions of medieval London, although no single surviving document identifies a definitive founding date. Its legal continuity is generally explained through incorporation by prescription: the City had exercised civic rights and operated as a corporate community for such a long period that the law recognized its continuing existence. Anglo-Saxon London used assemblies and courts, including the Folkmoot and the Court of Husting. The administrative work of the latter institution contributed to the development of the Court of Aldermen. A royal charter granted by William the Conqueror around 1067 confirmed rights and privileges that Londoners had enjoyed under Edward the Confessor. Subsequent monarchs issued additional charters, creating a long legal tradition of recognized City liberties and customs. Magna Carta's provision concerning the ancient liberties of the City is one of the principal statutory references associated with this tradition. By approximately 1189, the City had secured the right to have its own mayor. The office later became known as the Lord Mayor of London and developed into one of the City's central civic institutions. As the City's population, commerce and administrative needs expanded, the aldermen increasingly required participation from the City's commoners. Representation of commoners was eventually formalized through the Court of Common Council, whose name is recorded from at least the fourteenth century. Records of the Corporation's administrative and judicial activity from the late thirteenth century survive in the City's Letter-Books. The Corporation's autonomy came under serious pressure during the reign of Charles II. A quo warranto proceeding in 1683 removed important civic privileges and placed the City's constitutional position at risk. Following the Glorious Revolution, Parliament restored and confirmed those privileges through the London, Quo Warranto Judgment Reversed Act 1689, enacted during the reign of William III and Mary II. The episode became an important part of the City's constitutional history. From the eighteenth century onward, the Court of Common Council became the Corporation's principal governing body as the demands of administration and local taxation increased. The Corporation's responsibilities also expanded beyond the narrow management of streets and civic institutions. After the Great Fire of London, a separate Commission of Sewers dealt with drainage, flood prevention, paving, cleaning, lighting, churchyards and burials. The Corporation had earlier possessed limited powers to raise certain local rates, but the City of London Sewers Act 1897 transferred the Commissioners of Sewers' powers and duties to the Corporation. The Common Council thereby obtained full rights to collect local rates in January 1898. The Corporation was not brought within the general municipal reforms of the Municipal Corporations Act 1835. Its electoral and constitutional arrangements remained distinct, partly because the City already possessed a comparatively broad franchise and a long-established civic structure. Over time, however, the decline of the City's residential population and the growth of its role as a central business district made the electoral system increasingly unusual. The non-residential vote, removed elsewhere in the United Kingdom in 1969, continued in the City. The City of London (Ward Elections) Act 2002 substantially expanded the business franchise and enabled more qualifying organizations to appoint voters. The City's demographic transformation was significant. Its resident population, once much larger, fell below 5,000 after the Second World War as offices replaced housing and commercial activity intensified. Residential development, particularly around the Barbican Estate, later increased the population. The Corporation therefore administers a locality in which the daytime workforce and business community greatly exceed the residential electorate. In 2006, the institution adopted the name City of London Corporation, replacing Corporation of London in common official usage. The change clarified the distinction between the local authority for the Square Mile and the Greater London Authority, which governs London at the regional level. The Corporation continues to perform local-government functions while maintaining responsibilities for economic advocacy, civic ceremony, heritage, education, culture, policing, property and open spaces. Its modern organization is structured around the Lord Mayor, the Court of Aldermen and the Court of Common Council. The City is divided into twenty-five wards. Aldermen serve on both the Court of Aldermen and the Common Council, while common council members are elected from the wards. The livery companies and their senior liverymen retain an important role in Common Hall, which elects the Lord Mayor, sheriffs and certain other officers. Senior officials include the Town Clerk, who is also the chief executive; the Chamberlain, who acts as treasurer and finance officer; the City Remembrancer; the City Surveyor; the Comptroller and City Solicitor; and senior judicial officers connected with the Central Criminal Court, commonly known as the Old Bailey. The Corporation's continuity, self-governing traditions and combination of local authority, institutional landlord, cultural patron and financial-centre representative make it unlike an ordinary London borough. Its contemporary legitimacy and operations nevertheless depend on modern legislation, elections, public administration and accountability.
- 2025
Most recent Common Council elections referenced
[1]The reference material identifies March 2025 as the most recent scheduled or completed cycle of Common Council elections.
- 2006
Corporation of London renamed
[1]The body adopted the name City of London Corporation to distinguish the authority for the Square Mile from the Greater London Authority.
- 2002
Business franchise expanded
[1]The City of London (Ward Elections) Act 2002 broadened the business vote and changed the basis on which organizations operating in the City could appoint electors.
- 1898
Common Council receives full local-rating powers
[1]Following the City of London Sewers Act 1897, the Corporation assumed the powers and duties of the Commissioners of Sewers and obtained full rights to collect local rates.
- 1690
Privileges restored after the Glorious Revolution
[1]The London, Quo Warranto Judgment Reversed Act restored and confirmed the City's privileges under William III and Mary II.
- 1683
Civic privileges removed by quo warranto
[1]Under Charles II, a quo warranto process stripped the Corporation of important privileges and challenged the City's constitutional autonomy.
William the Conqueror confirms London's privileges
[1]A royal charter issued around this date confirmed rights and privileges associated with the citizens of London, providing an early surviving documentary reference to the City's continuing civic status.
London gains its own mayor
[1]Around this period the City obtained the right to have its own mayor, an office that later developed into the Lord Mayor of London.
Early administrative records begin
[1]The earliest surviving records of the City's chamberlains, clerks and the proceedings of the Aldermen and Common Council date from this period and are preserved in the Letter-Books.
Common Council is established as a recognized body
[1]The Court of Common Council is recorded by name from at least this period, reflecting the formal participation of the City's commoners in civic government.
Products and positioning
A historic, institutionally distinctive local authority that combines municipal administration, stewardship of major civic and cultural assets, management of extensive open spaces, and representation of the City of London's business and financial interests.
Local government
Municipal administration
The Corporation provides local-authority functions for the City of London, including planning, licensing, environmental services, public health, community and children's services, street management, local taxation and democratic administration. Some statutory functions also extend into the Inner Temple and Middle Temple, historic areas adjoining the City.
Public safety
City of London Police
The Corporation acts as the police authority for the City of London Police area. The force covers the City, including the Inner Temple and Middle Temple, and operates separately from the Metropolitan Police, which serves most of Greater London.
Culture and arts
Barbican Centre
The Barbican Centre is a major cultural institution within the Corporation's portfolio. It presents and supports music, theatre, dance, visual arts, cinema and related cultural activity as part of the City's civic and cultural infrastructure.
Education and performing arts
Guildhall School of Music and Drama
The Guildhall School of Music and Drama is a specialist higher-education and conservatoire institution associated with the Corporation. It provides advanced training in music, acting and technical theatre disciplines.
Education
City of London schools
The Corporation is associated with the governance of the City of London School, City of London School for Girls and City of London Freemen's School. These institutions form part of its educational portfolio and are overseen through dedicated governing structures.
Parks and environmental stewardship
Open spaces and commons
The Corporation manages or oversees extensive open spaces beyond the Square Mile, including Epping Forest, Hampstead Heath, Highgate Wood and Queen's Park. These assets support public recreation, landscape conservation, biodiversity and heritage stewardship.
Property and market management
Markets and civic property
Through its markets, property and related committees, the Corporation manages civic assets and commercial property connected with the City. It also maintains a central London commercial property portfolio and supports the operation of historic markets.
Brand decisions
2006
Adoption of the City of London Corporation nameStrategyBackground
The former name, Corporation of London, could be confused with the Greater London Authority, the regional government for the wider London area.
Action taken
The institution changed its public name to City of London Corporation while retaining its formal legal style as the Mayor and Commonalty and Citizens of the City of London.
Aftermath
The new name clarified that the body governs the historic City of London, or Square Mile, rather than Greater London as a whole.
2002
Expansion of the business electoral franchiseOtherBackground
The City's resident population had declined substantially while its daytime business population had become much larger. The resulting electoral system was increasingly different from that of other United Kingdom local authorities.
Action taken
The City of London (Ward Elections) Act 2002 expanded the business vote and established rules allowing qualifying organizations to appoint electors according to workforce size and eligibility criteria.
Aftermath
Business electors became a major component of the City's electorate, alongside residents and other eligible individual voters.
1897
Transfer of sewers and related civic functionsStrategyBackground
Drainage, flood prevention, paving, cleaning, lighting and certain burial-related responsibilities had previously been handled by a separate Commission of Sewers established after the Great Fire of London.
Action taken
The City of London Sewers Act 1897 transferred the Commission's powers and duties to the Corporation.
Aftermath
The Common Council gained full local-rating powers in January 1898 and consolidated responsibility for these municipal functions.
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