| Reference |
post code |
location 1 |
location 2 |
| RM12 29 | RM12 4 | CHESTNUT AVENUE/ACACIA AVENUE | |
| RM12 93 | RM12 4 | THE AVENUE | |
| RM12 199 | RM12 4 | GORDON AVENUE | |
| RM12 283 | RM12 4 | WARREN DRIVE | |
| RM12 292 | RM12 4 | WAYSIDE AVENUE | |
| RM12 303 | RM12 4 | ELM PARK AVENUE | |
| RM12 438 | RM12 4 | HORNCHURCH DELIVERY OFFICE | ABBS CROSS LANE |
| RM12 374 | RM12 4AQ | ALBANY ROAD POST OFFICE | ALBANY ROAD |
| RM12 109 | RM12 4RJ | ELM PARK POST OFFICE | ELM PARK AVENUE |
| RM12 1098 | RM12 4RJ | ELM PARK BUSINESS BOX | ELM PARK AVENUE |
| RM12 112 | RM12 4TN | HORNCHURCH ROAD POST OFFICE | HORNCHURCH ROAD |
| RM12 23 | RM12 4XR | ABBS CROSS LANE POST OFFICE | ABBS CROSS LANE |
| RM12 22 | RM12 5 | ROSEWOOD AVENUE | |
| RM12 159 | RM12 5 | HERON FLIGHT AVENUE | |
| RM12 168 | RM12 5 | SOUTHEND ROAD | |
| RM12 324 | RM12 5 | CONISTON WAY | |
| RM12 325 | RM12 5 | FARM WAY/LANCASTER | |
| RM12 339 | RM12 5 | ARBOUR WAY | |
| RM12 445 | RM12 5 | AIRFIELD WAY | |
| RM12 141 | RM12 5SA | MAYBANK AVENUE | |
| RM12 245 | RM12 6 | CORNWALL HOUSE STATION LANE | |
| RM12 335 | RM12 6 | ST.GEORGES HOSPITAL | |
| RM12 342 | RM12 6 | VAUGHAN AVENUE | |
| RM12 371 | RM12 6 | ALMA AVENUE | |
| RM12 440 | RM12 6 | RAVENSCOURT GROVE | |
| RM12 448 | RM12 6 | SWANBOURNE DRIVE | |
| RM12 143 | RM12 6EL | BEVAN WAY POST OFFICE | BEVAN WAY |
| RM12 20 | RM12 6RD | SUTTONS LANE POST OFFICE | SUTTONS LANE |
Map boundaries are based on data from