Council leader and Conservative councillor Robert Gordon CBE (Goffs Oak and Bury Green) died in October 2017.[25] The seat was held for the Conservatives by Lesley Greensmith in the by-election on 22 February 2018.[26]
Goffs Oak & Bury Green By Election 22 February 2018
Liberal Democrat councillor Charlotte Hogg (St Albans North) resigned from the council in March 2018.[27] A by-election was held on 3 May, where Roma Mills from the Labour Party captured the seat from the Liberal Democrats.[26]
The by-election was caused by the death of the incumbent Liberal Democrat, Paul Clark in December 2021. The Lib Dems won with an increased majority with Labour opting not to nominate a candidate.
The by-election was caused by the death of the Labour incumbent, Judi Billing in November 2022. Labour won with an increased majority with the Lib Dems opting not to nominate a candidate.
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^Whieldon, Fraser. "St Albans North councillor Charlotte Hogg resigns". Herts Advertiser. Retrieved 10 April 2018.
^"Local Elections Archive Project — Hitchin South Division". www.andrewteale.me.uk. Retrieved 31 March 2024.
^"Local Elections Archive Project — Hitchin North Division". www.andrewteale.me.uk. Retrieved 31 March 2024.