Dissolution of Parliament: recent developments
A research briefing examining recent developments in relation to the law concerning the dissolution of Parliament

The by-election in Rochester and Strood on 20 November 2014 was the 21st since the 2010 General Election. UKIP took the seat from the Conservatives with a majority of 2,920, pushing the Conservatives into second place.
By-elections 2010-15 (243 KB , PDF)
This research briefing sets out results of the 21 by-elections held during the 2010-15 Parliament.
Results for previous by-elections for parliaments since 1997 are available on the Parliament website.
By-elections 2010-15 (243 KB , PDF)
A research briefing examining recent developments in relation to the law concerning the dissolution of Parliament
This briefing sets out results of the by-elections held in the 2024 Parliament, including lists of candidates, vote share and voter turnout.
This list notes the number of by-elections by session since 1945-46 together with a list of the the successful candidates in by-elections since 2005.