The HA4 8BY postcode was located in Hillingdon, Hillingdon postcode town, within London, England region.
It is now a terminated postcode, it was a Large User postcode introduced in 1980-01 and terminated on 1996-06.
| Name | Type |
|---|---|
| OA21CD | E00012142 |
| LSOA21CD | E01002436 |
| MSOA21CD | E02000497 |
| MSOA21 | Northwood Hills |
| Postcode Area | HA4 |
| Ward | Eastcote |
| LTLA22 | Hillingdon |
| UTLA22 | Hillingdon |
| Region | London |
| Country | England |
| Co-ordinates | [ -0.4094645536010311, 51.582774877847605 ] |