Brentwood borough council: Liz Cohen was elected councillor for Shenfield ward on 6 December. She gains for the Liberal Democrats a seat previously held by the Conservatives.
Chelmsford city council: Vacancy in Broomfield and The Walthams ward after the death of the longest serving councillor, Delmas Ashford. Ashford was an Independent councillor for most of his career, except for 1999-2011 when he was a Conservative. Term ends 2015.
Norfolk county council: Vacancy in North Coast division after the resignation of Stephen Bett, who has been elected Police and Crime Commissioner for Norfolk. He was elected as a Conservative but was sitting as an Independent at the time of his resignation. No byelection can be held because full council elections are due in May.
Norwich city council: There are two byelections on Wednesday 19 December. Crome ward will elect a councillor after the resignation of Labour Party councillor and former Lord Mayor Jenny Lay, who is fighting cancer; the term ends in 2014. Nelson ward will elect a replacement after the resignation of Green Party councillor David Rogers, who has denounced his former party; the term ends in 2016.
Wirral borough council: There are two byelections on 17 January 2013. The poll in Leasowe and Moreton East ward follows the death of Labour councillor Anne McArdle; term ends in 2014. The poll in Heswall ward follows the death of Conservative councillor Peter Johnson; the term there ends in 2016.
Cornwall council: Anthony Pascoe was elected councillor for Gwinear-Gwithian and St Erth division on 6 December, holding the seat for the Conservatives. There is also a vacancy in Ludgvan division after the resignation of Independent councillor Irene Bailey due to ill health; as her term had less than six months to run, she will not be replaced in a byelection.
Sedgmoor district council: Byelection on 24 January in Highbridge and Burnham Marine ward after the resignation of Liberal Democrat councillor Joe Leach, who has taken a politically restricted post. Term ends 2015.
South Staffordshire district council: Barry Bond was elected councillor for Wombourne North and Lower Penn ward on 6 December, holding the seat for the Conservatives. There is also a vacancy in Perton East ward after the death of Conservative councillor David Billson, who was deputy leader of the council. Term ends 2015.
Moray council: Vacancy in Heldon and Laich ward after the resignation of Scottish National Party councillor Carolle Ralph, who has stepped down after becoming the victim of a hate-mail campaign. Term ends 2017.
South Lanarkshire council: Byelection on 14 February in Rutherglen South ward after the death of Scottish National Party councillor Anne Higgins. Term ends 2017. Her death means that Labour now has exactly half of the seats and would gain overall control of the council if a Labour councillor was elected in the byelection.