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UK Parliament

House of Commons

How many seats are there in the House of Commons? How many sitting days have there been for each session? Who has been the Speaker? This selection of research briefings provides information on various aspects of the House of Commons.

Speakers of the House of Common and Chairmen and Deputy Chairmen of Ways and Means
List of all known Speakers of the House of Commons and Deputy Chairmen of Ways and Means from 1258 to present day

Number of seats in the House of Commons since 1707
List of the number of seats in the House of Commons from 1707 to the present day

Number of Commons sitting days by session since 1945
Notes the number of days sat by the House of Commons in each parliamentary session since 1945

Sittings of the House of Commons over 24 hours since 1901
List all instances where the House of Commons sat for a period longer than 24 hours since 1901

House of Commons trends
Provides key statistics on the workings of the House of Commons, its Members and its staff

House of Lords

House of Commons

Progress of Public Bills
Lists the dates of all stages of public bills in both Houses of Parliament

Sessional Returns
Summary of the work of the House of Commons with information on sitting times, use of procedural instruments and the work of select committees

Sessional Diary
The House of Commons Sessional Diary records the time spent in the House on different types of business

House of Commons Annual Accounts
Annual administration accounts for the House of Commons and its Members since 2001

House of Lords

Business statistics
Breakdown of the business and membership statistics for the House of Lords in each session of Parliament

Voting records
Breakdown of voting records for each session of Parliament

Public Bill statistics
Public Bill statistics from the House of Lords for each session of Parliament