2003 Brentwood Borough Council election

Elections to Brentwood Borough Council were held on 1 May 2003. One third of the council was up for election, all seats last being elected in 2002 following boundary changes. Twelve years of Liberal Democrat control ended with the council passing into no overall control.

After the election, the composition of the council was
 * Liberal Democrat 18
 * Conservative 16
 * Labour 3

Election result
The swing was 5.5% from the Liberal Democrats to the Conservatives.