In so doing, the briefing charts the principal developments affecting the House over the course of its history and highlights the main changes and legislation passed. Since the 19th century a number of Acts of Parliament have had a noteworthy effect on the role, powers and membership of the House of Lords. These include:
- Appellate Jurisdiction Act 1876
- Parliament Act 1911 and 1949
- Life Peerages Act 1958
- Peerage Act 1963
- House of Lords Act 1999
- House of Lords Reform Act 2014
- House of Lords (Expulsion and Suspension) Act 2015
This briefing identifies other proposals made that have sought to reform the House, either in regard to its role, powers and/or membership. Significant reform proposals over the last 100 years, including those sponsored by the Government of the day, have included:
- Bryce Commission 1918
- Parliament (No 2) Bill 1968–69
- Wakeham Commission 2000
- House of Lords Reform Bill 2012–13
- Strathclyde Review (2015)
This updated briefing also summarises the proposals for reform debated during the 2015–17 parliament.