This office covers: WD3, WD4, WD5, WD6, WD7, WD17, WD18, WD19, WD23, WD24, WD25 (Rickmansworth, Chorleywood, Croxley Green, Sarratt, Chandlers Cross, Kings Langley, Abbots Langley, Bedmond, Borehamwood, Elstree, Well End, Radlett, Shenley, Watford, Cassiobury, Nascot Wood, Oxhey, Bushey, Bushey Heath, North Watford, Leavesden, Garston, Letchmore Heath), AL1, AL2, AL3, AL4, AL5, AL6, AL7, AL8, AL9, AL10 (St Albans, Bricket Wood, Frogmore, Napsbury, Chiswell Green, Rebourn, Colney Heath, Wheathampstead, Harpenden, Welwyn, Welwyn Garden City, Hatfield, Brookmans Park), HP1, HP2, HP3, HP4, HP5, HP6, HP7, HP8, HP9, HP10, HP11, HP12, HP13, HP14, HP15, HP16, HP17, HP18, HP19, HP20, HP21, HP22 (Hemel Hempstead, Boxmoor, Apsley, Bovingdon, Berkhamsted, Chesham, Amersham, Little Missenden, Chalfont St Giles, Little Chalfont, Beaconsfield, High Wycombe, Loudwater, Great Missenden, Aylesbury, Waddesdon) as well as all Home Counties including Hertfordshire and Bedfordshire.