The by-election was called following the resignation of Cllr. Michael B. Forsyth. The by-election was called following the resignation of Cllr. Francis Maude. The by-election was called following the death of Cllr. Jean Merriton.
1986-1990
The by-election was called following the resignation of Cllr. Peter J. Hartley. The by-election was called following the resignation of Cllr. Rachel E. Whittaker. The by-election was called following the resignation of Cllr. Patricia M. Kirwan.
1990-1994
The by-election was called following the resignation of Cllr. Barry C. Legg. The by-election was called following the resignation of Cllr. Shirley Porter. The by-election was called following the resignation of Cllr. Joseph Glickman. The by-election was called following the death of Cllr. Hugh G. Garside.
1994-1998
The by-election was called following the resignation of Cllr. Peter C. S. Bradley. The by-election was called following the resignation of Cllr. Karen P. Buck. The by-election was called following the resignation of Cllr. Andrew H. Dismore.
1998-2002
The by-election was called following the resignation of Cllr. Nicola Russell. The by-election was called following the resignation of Cllr. Richard A. Stirling-Gibb. The by-election was called following the resignation of Cllr. Ron M. Harley. The by-election was called following the resignations of Cllrs. Jillian A. Selbourne and Gary P. Martin. The by-election was called following the resignation of Cllr. Jonathan S. Djanogly.
2002-2006
The by-election was called following the resignation of Cllr. Josephine S. Ohene-Djan.
2006-2010
The by-election was called following the death of Cllr. Kevin A. Gardner. The by-election was called following the resignation of Cllr. Michael G. Vearncombe. The by-election was called following the death of Cllr. Antony G. Mothersdale. The by-election was called following the resignation of Cllr. Simon H. Milton. The by-election was called following the death of Cllr. Ian G. Wilder. The by-election was called following the death of Cllr. Mushtaq A. Qureshi.
2010-2014
The by-election was called following the resignation of Cllr. Colin Barrow. The by-election was called following the resignation of Cllr. Harvey C. J. Marshall.
2014-2018
The by-election was called following the resignation of Cllr. Edward J. C. Argar. The by-election was called following the resignation of Cllr. Nilavra Mukerji. The by-election was called following the death of Cllr. Audrey R. Lewis. The by-election was called following the resignation of Cllr. Vincenzo Rampulla.
2018-2022
The by-election was called following the resignation of Cllr. Robert J. Davis.