The House of Lords
How the unelected second chamber is composed, how it revises legislation, and the limits on its powers and the reform debate.
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The House of Lords is the second chamber of the United Kingdom Parliament, and one of its most distinctive institutions. Unlike the Commons, it is not elected. Its members are appointed, or sit by virtue of office or inheritance, and its central purpose is not to govern but to revise — to examine, improve and challenge legislation, and to ask the elected chamber to think again. How it is composed, what it can and cannot do, and whether it should be reformed are questions that go to the heart of debates about democracy and expertise.
Composition
The membership of the Lords is unusual and reflects layers of history.
- Life peers form the large majority. They are appointed for their lifetime, mostly on the advice of the Prime Minister, with some nominated by other party leaders or by the independent House of Lords Appointments Commission. Their titles are not hereditary and die with them.
- Hereditary peers once dominated the House, but the House of Lords Act 1999 removed most of them. As a transitional compromise, 92 were allowed to remain, sitting by virtue of inherited titles, with vacancies filled by by-elections. Their continued presence has long been contested.
- The Lords Spiritual are 26 senior bishops of the Church of England, including the Archbishops of Canterbury and York, who sit by virtue of their ecclesiastical office. They reflect the historic position of the established Church.
A further distinctive group are the crossbenchers — members who take no party whip and sit as independents. Their presence, alongside the absence of any single party majority, shapes the character of the House, obliging governments to win arguments on the merits rather than rely on numbers alone.
A revising chamber
The Lords is best understood as a revising chamber. Its principal task is to scrutinise and improve legislation rather than to originate the government’s programme or to block it. Peers examine bills clause by clause, propose amendments, and frequently send legislation back to the Commons with suggested changes, inviting MPs to reconsider particular points.
Supporters of an appointed second chamber argue that this work benefits from the expertise its members bring. Because peers are appointed rather than elected, the House can include senior figures from law, medicine, science, the armed forces, business, the arts and public life, who can scrutinise detail in a less party-driven way than the Commons. Critics respond that, however expert, an unelected chamber lacks democratic legitimacy and should not have the power to frustrate elected representatives.
Beyond legislation, the Lords debates major public issues, questions ministers, and runs respected select committees — for example on the constitution, the economy, science and international affairs — whose reports contribute to public debate and scrutiny.
Powers and limits
The defining feature of the Lords’ powers is that they are limited. The chamber cannot, as a rule, impose its will on the elected Commons.
The Parliament Acts 1911 and 1949 are central. They reduced the Lords’ power over most legislation from a veto to a power of delay: if the Commons passes a bill in successive sessions, it can become law without the Lords’ agreement. The 1911 Act also removed the Lords’ ability to delay money bills — those dealing with taxation and public spending — for more than about a month, firmly placing control of finance with the elected House.
Convention reinforces these legal limits. Under the Salisbury Convention, the Lords does not block or wreck at second reading legislation that implements a commitment in the governing party’s election manifesto. The reasoning is that an unelected chamber should not frustrate measures the government was elected to deliver. In practice, then, the Lords operates as a chamber of scrutiny and delay, exercising influence by persuasion and by forcing reconsideration, while leaving the final decision to the Commons.
The reform debate
Few British institutions have attracted as much reform debate as the Lords. The central question is one of composition and legitimacy. Reformers argue that a wholly or partly elected chamber would have the democratic mandate an appointed body lacks. Others favour keeping an appointed House, valuing its independence, expertise and the continuity it provides, and warning that an elected second chamber might rival the Commons and produce deadlock.
Particular flashpoints include the remaining hereditary peers, whose presence many regard as an anomaly; the seats reserved for bishops, questioned in a more secular and multi-faith society; and the size of the House, which has grown large and prompted calls for caps and retirement schemes. Proposals over the years have ranged from full election to full appointment to outright abolition.
Major structural reform has nonetheless proved persistently difficult, partly because there is no agreement on what should replace the current arrangements, and partly because changing the second chamber raises wider questions about the balance of power within Parliament. The result is a House that has evolved by stages rather than by wholesale redesign — a revising chamber whose composition and future remain live constitutional questions.
The House of Lords is:
Sources
- UK Parliament — The House of Lords website Official guidance on the membership, role and powers of the Lords.
- A. V. Dicey — Introduction to the Study of the Law of the Constitution book 1885; classic treatment of the relationship between the two Houses.
- The Constitution Unit (UCL) — The House of Lords website Non-partisan research on the Lords and on reform proposals.
- Erskine May — Erskine May: Parliamentary Practice book Authoritative reference on the procedures of both Houses.