Born in Solihull, Webbe was educated at King Edward's School, Birmingham and Queens' College, Cambridge, which he attended from 1904 to 1907. During World War I, he worked at the Ministry of Munitions. He worked as a director of several companies.
Webbe was a member of the London County Council from 1925 to 1949, representing Camberwell North West and then serving as an alderman, and he led the Municipal Reform Party on the Council for 12 years. He was a Deputy Lieutenant of the County of London. On 17 May 1939, he was first elected to Parliament in a by-election in the London constituency of Westminster Abbey, following the death of Sir Sidney Herbert, Bt. He remained the seat's MP until it was abolished for the 1950 general election, when he was elected for the new constituency of the Cities of London and Westminster. He retired from Parliament at the 1959 general election. He died in Surrey aged 79.
- The Times House of Commons 1955. The Times. 1955. Italic or bold markup not allowed in:
- Leigh Rayment's Historical List of MPs
- Hansard 1803–2005: contributions in Parliament by Harold Webbe
|Parliament of the United Kingdom|
Sir Sidney Herbert, Bt
| Member of Parliament for Westminster Abbey
1939 – 1950
|New constituency|| Member of Parliament for the Cities of London & Westminster
1950 – 1959
Sir Harry Hylton-Foster
|Party political offices|
| Leader of the Municipal Reform Party on London County Council
as leader of the Conservative Party on London County Council