By-Elections were held on Thursday 23rd September 2004 following the death during the previous month of Conservative Councillor David Walsh who held seats on both Essex County Council and Basildon District Council.
The results of those By-Elections were as follows:
|
| Basildon District Laindon Park Ward (view electoral ward boundary map) |
| Candidate | Description | Votes |
| Fane William Henry Cummings | Liberal Democrat Party | 139 |
| Allan Robert Davies | Labour Party | 818 |
| David Michael King | British National Party | 365 |
| (Henry) Harry Thomas Tucker | Conservative Party | 582 |
| Alfred Thomas Viccary | Independent | 30 |
|  | |
| Essex County Basildon Westley Heights Division |
| Candidate | Description | Votes |
| (Hilary) Jane Dyer | Labour Party | 426 |
| Sandra Elizabeth Hillier | Conservative Party | 999 |
| Geoffrey Williams | Liberal Democrat Party | 1167 |