Postal sector RH12 0
- Bricklayer Lane, Horsham, RH12 0AA
- Beeches Way, Horsham, RH12 0AB
- Beeches Way, Horsham, RH12 0AD
- Brickyard Way, Horsham, RH12 0AE
- Calvert Link, Horsham, RH12 0AF
- Calvert Link, Horsham, RH12 0AG
- Clifton Close, Horsham, RH12 0AH
- Illett Way, Horsham, RH12 0AJ
- Holmbush End, Horsham, RH12 0AL
- Kilnwood Close, Horsham, RH12 0AN
- Kilnwood Close, Horsham, RH12 0AP
- Millpond Lane, Horsham, RH12 0AQ
- Rainbow Field, Horsham, RH12 0AR
- Rushy Field, Horsham, RH12 0AS
- Mole Crescent, Horsham, RH12 0AT
- Clay Vale, Horsham, RH12 0AU
- Pondtail Walk, Horsham, RH12 0AW
- Rookfield Road, Horsham, RH12 0AX
- Willow Street, Horsham, RH12 0AY
- Holmbush Mews, Horsham, RH12 0AZ
- Holmbush Mews, Horsham, RH12 0BA
- Pondtail Avenue, Horsham, RH12 0BB
- Turnpike Lane, Horsham, RH12 0BD
- Arun Valley Way, Horsham, RH12 0BE
- Arun Valley Way, Horsham, RH12 0BF
- Calico Street, Horsham, RH12 0BG
- High Beeches, Horsham, RH12 0BH
- Hop Link, Horsham, RH12 0BJ
- Illett Way, Horsham, RH12 0BL
- Orchard Crescent, Horsham, RH12 0BN
- Tanners Way, Horsham, RH12 0BP
- Tributary Lane, Horsham, RH12 0BQ
- Arun Walk, Horsham, RH12 0BR
- Stillwell Way, Horsham, RH12 0BS
- Crows Wood, Horsham, RH12 0BT
- Alder Way, Horsham, RH12 0BU
- Holmbush Drive, Horsham, RH12 0BW
- Lots Drive, Horsham, RH12 0BX
- Somerset Road, Horsham, RH12 0BY
- Brewers Way, Horsham, RH12 0DA
- Brewers Way, Horsham, RH12 0DB
- Cambridgeshire Walk, Horsham, RH12 0DD
- Capon Park, Horsham, RH12 0DE
- Crusades Road, Horsham, RH12 0DF
- Tin Church Avenue, Horsham, RH12 0DG
- Brighton Link, Horsham, RH12 0DH
- Ely Way, Horsham, RH12 0DJ
- Flint Street, Horsham, RH12 0DL
- Illett Way, Horsham, RH12 0DN
- Somerset Road, Horsham, RH12 0DP
- Bertha Court, Horsham, RH12 0DQ
- Fourteenth Street, Horsham, RH12 0DR
- Harrys Way, Horsham, RH12 0DT
- Pasteur Avenue, Horsham, RH12 0DU
- Sired Way, Horsham, RH12 0DX
- Spruce Hill Brook, Horsham, RH12 0DY