The 2011 Rutland County Council election took place on 5 May 2011. The whole of Rutland County Council was up for election.
By-elections between May 2011 - May 2015
By-elections are called when a representative councillor resigns or dies, so are unpredictable. A by-election is held to fill a political office that has become vacant between the scheduled elections.
References
Rutland County Council election, 2011 Wikipedia(Text) CC BY-SA