Twelve principal authority by-elections across England, Wales and Scotland took place on Thursday 2nd July, carrying on a trend of unusually high numbers of by-elections over the past few weeks.
Reform UK were defending three seats. The Liberal Democrats, Labour and Independents/Localists were defending two each. Plaid Cymru and the Conservatives were defending one each.
Wales
Three by-elections took place in the county of Powys, with one in Torfaen. All four by-elections were triggered by a councillor winning a seat on the Senedd, and unlike in England, Welsh law dictates that you cannot hold both a council and Senedd seat.
Torfaen CBC, Llantarnam
The previous councillor in the Llantarnam ward in Torfaen won a by-election in 2023 as an Independent (he had previously been a Conservative councillor) before moving over to Reform UK. Three Independents had swept the ward in 2022, with Labour winning the two seats available at the election in 2017. While a technical gain from Independent, as the post had been occupied by Reform UK before the by-election, this can also be looked at as a Reform UK hold. This was not a Liberal Democrat target, standing for the first time here.
Thanks to Brendan Roberts for putting a Liberal Democrat choice on the ballot paper.
Reform UK: 505 (42.7%, new)
Labour: 362 (30.6%, +3.4%)
Plaid Cymru: 190 (16.1%, -1.6%)
Conservative: 58 (4.9%, new)
Green Party: 49 (4.1%, -6.8)
Lib Dem: 18 (1.5%, new)
Reform UK GAIN from Independent
Powys CC, Glantwymyn
This race was an unusual one as Plaid Cymru ran unopposed in the Glantwymyn council election back in 2022. It was contested this time again by Plaid Cymru, as well as Reform UK, the Conservatives and the Liberal Democrats. Unsurprisingly, Plaid Cymru held onto this seat with over 80% of the vote, given they have been the only party active here.
A huge thanks to Angela Strandrin for standing!
Plaid Cymru: 513 (81.8%, -18.2%)
Reform UK: 63 (10%, new)
Conservative: 28 (4.8%, new)
Lib Dem: 23 (3.7%, new)
Plaid Cymru HOLD
Powys CC, Yscir with Honddu Isaf & Llandew
Yscir with Honddu Isaf & Llandew had previously been held by the Conservatives who had beaten the Liberal Democrats in a two-horse race back in 2022 by a 16-point margin. No other parties stood. The Conservative councillor then defected to Reform UK before getting elected to the Senedd.
While our vote share fell from 2022 due to four other parties standing this time, we successfully fended off a strong Reform UK challenge while the Conservative vote collapsed, gaining the seat by a five-point margin. This race was supported by a grant from ALDC’s Fighting Fund.






