The by-election was called following the resignation of Cllr Richard Arthur. The by-election was called following the resignation of Cllr Brian Loughran. The by-election was called following the resignation of Cllr Archie MacDonald. The by-election was called following the resignation of Cllr Frank Dobson. The by-election was called following the resignation of Cllr John Toomey. The by-election was called following the resignation of Cllr Ronald Raymond-Cox. 1978–1982 The by-election was called following the death of Cllr Donald Degerdon. The by-election was called following the resignation of Cllr Brian Stoner. The by-election was called following the resignation of Cllr Anthony Beaton. The by-election was called following the resignation of Cllr Richard Almond. The by-election was called following the resignation of Cllr Michael Morrissey. The by-election was called following the resignation of Cllr Christopher Gardiner. The by-election was called following the resignation of Cllr Jonathan Sofer. The by-election was called following the resignation of Cllr Roderick Cordara. The by-election was called following the resignation of Cllr Kevin Gould. 1982–1986 The by-election was called following the resignation of Cllr Derek Spencer. The by-election was called following the resignation of Cllr Teresa Ryan. The by-election was called following the resignation of Cllr John Mills. 1986–1990 The by-election was called following the death of Cllr Thomas Devine. The by-election was called following the resignation of Cllr Stephen Moon. The by-election was called following the resignation of Cllr Stephen Bevington. The by-election was called following the resignation of Cllr Selina Gee. 1990–1994 The by-election was called following the death of Cllr Alfred Saunders. The by-election was called following the resignation of Cllr Vaughan A. Emsley. The by-election was called following the resignation of Cllr John M. Wakeham. The by-election was called following the resignation of Cllr Julia O. Devote. The by-election was called following the resignation of Cllr Simon C. J. McDonald. The by-election was called following the resignation of Cllr Mary C. Helsdon. 1994–1998 The by-election was called following the resignation of Cllr Peter G. Day. The by-election was called following the resignation of Cllr Shelley Burke. 1998–2002 The by-election was called following the resignation of Cllr Mary Ryan. The by-election was called following the death of Cllr Julian J. Tobin. The by-election was called following the resignation of Cllr Jake Turnbull. The by-election was called following the resignation of Cllr Pamela Chesters. 2002–2006 The by-election was called following the resignation of Cllr Justin Barnard.