B Barking Beckenham Bexleyheath Brentford Bromley C Croydon D Dagenham E Edgware Enfield H Harrow Hornchurch Hounslow I Ilford K Kingston upon Thames L London M Morden O Orpington P Petts Wood Pinner R Rainham Richmond Romford Ruislip S Sidcup Southall Stanmore Surbiton Sutton T Twickenham U Upminster Uxbridge W Wealdstone Wembley West Drayton Worcester Park