By-election results October 2009
Following the sad death of Councillor Martin Heywood, elections took place on Thursday 22 October 2009 for the Potters Bar Oakmere ward of the borough, the county ward of Borehamwood North and the Hillside ward for Elstree and Borehamwood Town Council.
The results are as follows - the winner is indicated in bold:
Potters Bar Oakmere - Hertsmere Borough Council
| Candidate | Party | Votes polled |
| Sevincli, Tugay | Conservative Party | 679 |
| Tengwo, Paul Pierre | Labour Party | 207 |
17.08% turnout
Borehamwood North - Hertfordshie County Council
| Candidate | Party | Votes polled |
| Gamble, Robert Graham | Liberal Democrats | 170 |
| Plancey, Alan | Conservative Party | 982 |
| Reefe, Leon Franklin | Labour Party | 928 |
| Ward, Francis (known as Frank) | 125 |
18.5% turnout
Hillside - Elstree and Borehamwood Town Council
| Candidate | Party | Votes polled |
| Kelly, Charles | Conservative Party | 608 |
| Scott Norman, Anthony David | Labour Party | 128 |
| Ward, Francis (known as Frank) | 314 |
16.2% turnout
