No overall control No overall control The 2004 Colchester Borough Council election took place on 10 June 2004 to elect members of Colchester Borough Council in Essex, England.

[2] A by-election took place in Wivenhoe Quay ward after the death of sitting Independent councillor Richard Davies.

[5] As a result, the Conservatives took all the seats on the council cabinet for the first time since that style of government was introduced in Colchester, with the Conservative group leader John Jowers becoming the new leader of the council.

A by-election took place on 21 October 2004 in Berechurch after the resignation of Liberal Democrat councillor Susan Brooks.

[7] Labour's Dave Harris took the seat from the Liberal Democrats by a majority of 345.