The House of Lords chamber at the Palace of Westminster. Image: UK Parliament (Parliamentary copyright).

The House of Lords Explained: How Britain's Unelected Upper Chamber Really Works

Few British institutions attract as much argument as the House of Lords. It is one of only a handful of legislatures anywhere in the world whose members are not elected, yet it has the power to force the elected government of the day to think again. In 2026 it also went through one of the biggest changes in its history, when the last hereditary peers lost their seats. So what is the Lords for, who sits there now, and how does it actually shape the laws Britain lives under?

Key facts

• What it is: the upper house of the Parliament of the United Kingdom, sitting at the Palace of Westminster alongside the House of Commons.
• Size: just under 800 sitting members, making it one of the largest legislative chambers in the world.
• How members get there: they are appointed as life peers, nominated by the Prime Minister, other party leaders or the House of Lords Appointments Commission; there are no elections for the Lords.
• Lords Spiritual: up to 26 bishops of the Church of England also sit, including the Archbishops of Canterbury and York.
• Hereditary peers: removed entirely in 2026 after sitting in Parliament for centuries.
• Lord Speaker: Lord Forsyth of Drumlean, elected by peers and in office since 2 February 2026.

What the House of Lords actually is

The Lords is the second chamber of Parliament. Its roots go back to the 11th century, and the familiar two-chamber system took shape in the 14th. Where the Commons is elected and its MPs answer to constituents, peers answer to nobody in particular. That is exactly the point, supporters say: the Lords is meant to be a chamber of scrutiny rather than a chamber of politicians worried about the next election.

The chamber itself tells you something about how it works. Members sit on red leather benches (green in the Commons), facing each other across the floor. The Government sits on the benches to the right of the Woolsack, the large cushion-like seat on which the Lord Speaker presides, with the Opposition on the left. Peers who belong to no party, the Crossbenchers, sit directly opposite. At the far end stands the throne, used by the monarch at the State Opening of Parliament, when the King delivers the speech setting out the Government's plans in front of both Houses.

Who sits in the Lords now

The House has three kinds of member. The largest group is the Lords Temporal who sit as life peers: men and women appointed by the King on the advice of the Prime Minister, usually on the recommendation of party leaders or the independent House of Lords Appointments Commission, which proposes non-party peers chosen for their expertise. Peerages are for life and cannot be renounced by successors, so the size of the House has no fixed limit.

Second are the Lords Spiritual: up to 26 bishops of the Church of England, including the Archbishops of Canterbury and York. Britain remains the only country in the world, alongside Iran, with clerics sitting as of right in its legislature.

The third group, the hereditary peers, no longer exists. For most of the Lords' history hereditaries were the majority. Tony Blair's government cut them down to 92 in 1999, and the House of Lords (Hereditary Peers) Act 2026 removed the rest entirely. The Act received royal assent on 18 March 2026 and took effect when the first session of the 59th Parliament was prorogued on 29 April 2026. Some of the departing peers were made life peers so they could stay, but the principle that you could inherit a seat in Parliament is gone.

As of early October 2026 the House has just under 800 sitting members. The Conservatives are the largest party group, followed by Labour, with the Liberal Democrats and more than 150 independent Crossbenchers making up much of the rest. Because membership is for life, the party balance changes slowly: a new government does not automatically get a friendly upper house.

What it does with legislation

Every Bill that is not introduced in the Commons has to get through both Houses before it becomes law, and that is where the Lords earns its keep. Ministers introduce the Bill, peers debate it in general terms, then a committee of the whole House or a smaller committee goes through it line by line, proposing amendments. Any Bill amended in the Lords goes back to the Commons, and if the two Houses disagree the measure goes back and forth, in the process known as parliamentary ping-pong, until one side gives way.

Crucially, the Lords cannot normally kill a Bill. Under the Parliament Acts of 1911 and 1949, the Commons can force through most legislation even if the Lords keeps objecting: the Lords can delay an ordinary Bill for about a year, and a money Bill for about a month, but not stop it. There is also the Salisbury convention, the understanding that the Lords will not block measures that appeared in the winning party's election manifesto.

That sounds weak, but in practice it is not. Governments dislike delays, and they dislike the Commons being forced to use the Parliament Acts, which looks heavy-handed. So Lords amendments are often accepted. Peers tend to be expert on detail: former judges, generals, civil servants, scientists and business people pick apart legislation in ways that constituency MPs, with less time and narrower expertise, often cannot.

How the Lords holds the government to account

Beyond law-making, the Lords runs select committees that are widely regarded as among the best in Parliament. Its committees on the Constitution, economic affairs, international relations and science produce reports that ministers take seriously, partly because the peers asking the questions often know more than the ministers answering them.

Peers also question ministers directly. Government ministers in the Lords answer oral questions and take part in debates, and the weekly exchange gives the opposition and Crossbenchers a regular chance to press the government on the record. None of this is glamorous, and it gets far less coverage than Prime Minister's Questions, but it is a steady form of scrutiny that the Commons alone does not provide.

Why it matters now

The Lords is in the middle of its most significant reshaping for a generation. The removal of the hereditary peers was the first big step of a reform programme, and Labour's manifesto proposed more, including a mandatory retirement age of 80 for peers, which has not yet been legislated. The balance of the House will also shift over this Parliament as new appointments are made.

The current government's legislative programme gives the Lords plenty to do. Bills such as the Courts and Tribunals Bill, which carries the justice reforms announced this month, must pass through the upper house, where peers with legal backgrounds will examine the detail of magistrates' sentencing powers and court reform line by line. On defence, the Lords' international relations and defence committees keep sustained attention on procurement and strategy questions that often slip past the Commons in the rush of daily business.

Critics argue the Lords is undemocratic by design and should be replaced with an elected senate, while others say appointment frees peers to scrutinise honestly without chasing votes. Both sides agree on one thing: as long as Westminster works the way it does, understanding the red-benches chamber is essential to understanding how Britain is actually governed.

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Sources

• UK Parliament, parliament.uk: the Lord Speaker's role; 2026 Lord Speaker election (Tier 1).
• House of Commons Library research briefing CBP-10219: Lords membership by party (Tier 1).
• Wikipedia: House of Lords; Lord Speaker; House of Lords (Hereditary Peers) Act 2026; 2026 Lord Speaker election (modern summaries, cross-checked against the sources above).
• Reuters and press reporting on the departure of the last hereditary peers, April/May 2026 (Tier 2 cross-reference).