B Barking Barnet Beckenham Brentford Bromley C Croydon D Dagenham E Edgware Enfield G Greenford H Hampton Harrow Hornchurch Hounslow I Ilford Isleworth K Kingston upon Thames L London M Mitcham Morden P Pinner R Richmond Romford Ruislip S Sidcup Stanmore Surbiton Sutton T Thornton Heath Twickenham U Upminster Uxbridge W Wallington Wembley Woodford Green