Styles was elected as Member of Parliament for Sevenoaks at the 1924 general election, standing as a Conservative and defeating the sitting Member, Ronald Williams, a Liberal. He did not contest the election of 1929 and returned to private life.
In 1934, Styles settled in Sussex. During the Second World War of 1939 to 1945 he commanded the local Battalion of the Home Guard, when he was given the rank of Lieutenant-Colonel of the Royal Sussex Regiment. At the time of his death he was Chairman of the Governing Body of the Lewes Grammar School for Boys. His address in 1965 was Old Farmhouse, Rodmell, Lewes, Sussex.
- 'STYLES, (Herbert) Walter', in Who Was Who 1961–1970, (London: A. & C. Black, 1979 reprint, ISBN 0-7136-2008-0)
- 'Colonel H. W. Styles' in The Barbican No. 41, 1966, at old-lewesians.org.uk
- F. W. S. Craig, British Parliamentary Election Results, 1918-1949 (Political Reference Publications, Glasgow, 1949), p. 390
- Hansard 1803–2005: contributions in Parliament by Herbert Walter Styles
|Parliament of the United Kingdom|
R. S. A. Williams
|Member of Parliament for Sevenoaks
Sir Hilton Young