Voters in Salisbury Milford go to the polls on Thursday, October 15, following the resignation of Liberal Democrat councillor Alan Bayliss, who stepped down from both Wiltshire Council and Salisbury City Council for personal reasons at the beginning of September.

But the significance of the contest stretches well beyond Milford.

Following Mr Bayliss’s departure, Wiltshire Council’s 98 seats stand at 42 Liberal Democrats, 38 Conservatives, 10 Reform UK, seven independents and others, with Milford the sole vacancy.

That means victory would take the Lib Dems to 43 seats and restore the seat they won at last year’s elections, while a Conservative victory would increase their representation to 39 and narrow the gap between Wiltshire’s two biggest parties.

Neither can command an outright majority alone, making every seat particularly valuable as the parties seek influence over the direction of the authority.

Four candidates are fighting the contest: Mac McIntyre Brown for the Liberal Democrats, Laura Elizabeth Jones for the Conservatives, Simon Edgar Lever for Reform UK, and Sony Assuon for Labour.

The Lib Dems go into Thursday defending favourable territory. At the May 2025 council elections they took 43.9 per cent of the vote in Salisbury Milford, against 24 per cent for the Conservatives, 18.1 per cent for Reform, 8.7 per cent for Labour and 5.4 per cent for the Greens.

But the seat has changed political hands before. The Conservatives won Milford in 2021 before the Liberal Democrats captured it in 2025, meaning a Tory victory would amount to recapturing relatively recent territory.

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For the Lib Dems, therefore, the contest is about protecting their position as Wiltshire Council’s largest party and rebuilding their numbers after Mr Bayliss’s resignation.

For the Conservatives, it represents a chance to eat into that advantage and demonstrate that territory lost at the 2025 elections can be won back.

With just one cross on one ballot paper, Milford’s voters could therefore have an impact on the political arithmetic of the entire county.