Building society

A building society is a financial institution owned by its members as a mutual organization, which offers banking and related financial services, especially savings and mortgage lending. They exist in the United Kingdom, Australia and New Zealand, and formerly in Ireland and several Commonwealth countries, including South Africa as mutual banks. They are similar to credit unions, but rather than promoting thrift and offering unsecured and business loans, the purpose of a building society is to provide home mortgages to members. Borrowers and depositors are society members, setting policy and appointing directors on a one-member, one-vote basis. Building societies often provide other retail banking services, such as current accounts, credit cards and personal loans. The term "building society" first arose in the 19th century in Great Britain from cooperative savings groups.

In the United Kingdom, building societies compete with banks for most consumer banking services, especially mortgage lending and savings accounts, and regulations permit up to half of their lending to be funded by debt to non-members, allowing societies to access wholesale bond and money markets to fund mortgages. The world's largest building society is Britain's Nationwide Building Society. In Australia, building societies also compete with retail banks and offer the full range of banking services to consumers.

Building societies as an institution began in late-18th century Birmingham – a town which was undergoing rapid economic and physical expansion driven by a multiplicity of small metalworking firms, whose many highly skilled and prosperous owners readily invested in property. Many of the early building societies were based in taverns or coffeehouses, which had become the focus for a network of clubs and societies for co-operation and the exchange of ideas among Birmingham's highly active citizenry as part of the movement known as the Midlands Enlightenment. The first building society to be established was Ketley's Building Society, founded by Richard Ketley, the landlord of the Golden Cross inn, in 1775. Members of Ketley's society paid a monthly subscription to a central pool of funds which was used to finance the building of houses for members, which in turn acted as collateral to attract further funding to the society, enabling further construction. By 1781 three more societies had been established in Birmingham, with a fourth in the nearby town of Dudley; and 19 more formed in Birmingham between 1782 and 1795. The first outside the English Midlands was established in Leeds in 1785.

Most of the original societies were fully terminating, where they would be dissolved when all members had a house: the last of them, First Salisbury and District Perfect Thrift Building Society, was wound up in March 1980. In the 1830s and 1840s a new development took place with the permanent building society, where the society continued on a rolling basis, continually taking in new members as earlier ones completed purchases, such as Leek Building Society. The main legislative framework for the building society was the Building Societies Act 1874 (37 & 38 Vict. c. 42), with subsequent amending legislation in 1894, 1939 (see Coney Hall), and 1960.

In their heyday, there were hundreds of building societies: just about every town in the country had a building society named after that town. Over succeeding decades the number of societies has decreased, as various societies merged to form larger ones, often renaming in the process, and other societies opted for demutualisation followed by – in the great majority of cases – eventual takeover by a listed bank. Most of the existing larger building societies are the result of the mergers of many smaller societies.

All building societies in the UK are members of the Building Societies Association. At the start of 2008, there were 59 building societies in the UK, with total assets exceeding £360 billion. The number of societies in the UK fell by four during 2008 due to a series of mergers brought about, to a large extent, by the consequences of the 2008 financial crisis. There were three further mergers in each of 2009 and 2010, a demutualisation and a merger in 2011, and four further mergers 2013–2018 which resulted in there being only one building society headquartered respectively in Scotland and Northern Ireland. Since then, the only merger has been in 2023, when the Manchester society merged with the Newcastle society.

In the 1980s, changes to British banking laws allowed building societies to offer banking services equivalent to normal banks. The management of a number of societies still felt that they were unable to compete with the banks, and a new Building Societies Act was passed in 1986 in response to their concerns. This permitted societies to 'demutualise'. If more than 75% of members voted in favour, the building society would then become a limited company like any other. Members' mutual rights were exchanged for shares in this new company. A number of the larger societies made such proposals to their members and all were accepted. Some listed on the London Stock Exchange, while others were acquired by larger financial groups.

The process began with the demutualisation of the Abbey National Building Society in 1989. Then, from 1995 to late 1999, eight societies demutualised accounting for two-thirds of building societies assets as at 1994. Five of these societies became joint stock banks (plc), one merged with another and the other four were taken over by plcs (in two cases after the mutual had previously converted to a plc).