Legislation Acts of Parliament
| Title | Date of Royal Assent |
|---|---|
| Parliamentary Constituencies Act 1986 | 7 November 1986 |
| Northern Ireland Constitution Act 1973 | 18 July 1973 |
| House of Commons (Redistribution of Seats Act) 1949 | 24 November 1949 |
| Representation of the People Act 1948 | 30 July 1948 |
| House of Commons (Redistribution of Seats Act) 1944 | 26 October 1944 |
| Government of Ireland Act 1920 | 23 December 1920 |
| Redistribution of Seats (Ireland) Act 1918 | 6 February 1918 |
| Representation of the People Act 1918 | 6 February 1918 |