Chiseldon and Lawn The election this year in Chiseldon & Lawn is a by-election, caused by the death of sitting councillor and deputy mayor of Swindon Brian Mattock. Coun Mattock was elected for his seat in 2018 and the four-year term runs out next year, so the winning candidate in this ward in May will only serve for a year before having to stand for election again. Although polls last year were delayed for a year by the Covid-19 pandemic, future elections will be held according to the original cycle, rather than moving everything on a year. Chiseldon & Lawn is a ‘sister’ ward to next door Ridgeway.