| Postcode | HA3 0QB | 
|---|---|
| Post Town | Harrow | 
| Nearest station | Preston Road (0 km) | 
| Bus stops | Ravenscroft Avenue (N) Preston Road Station (S) Woodcock Hill (S) Ravenscroft Avenue (S) Carlton Avenue East (N) Woodcock Hill (NW) | 
| London travel zone | 4 | 
| Roads in this postcode | |
| Number of UPRNs | 3 View | 
| Known addresses | 
                          No addresses found
                       | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 51.573507 | |
|---|---|---|
| Longitude | -0.294233 | |
| Easting | 518308 | |
| Northing | 187449 | |
| Grid reference | TQ183874 | |
| UTM reference | 30U 687496 5717073 | |
| what3words | decay.insect.laying | |
| FixPhrase | cringing magma stencil unknown | |
| Plus code | 9C3XHPF4+C8 | |
| Altitude | 46 metres (152 feet) | |
| Sunrise (today) | 6:54 | |
| Sunset (today) | 16:37 | |
| Distance away | ||
| Distance to sea | 50.5 KMs (31.4 miles) | 
| Parish | Brent, unparished area | E43000195 | 
|---|---|---|
| Ward | Kenton | E05013502 | 
| London Borough | Brent | E09000005 | 
| County | Greater London | E11000009 | 
| Constituency (2024) | Brent West | E14001123 | 
| MP | Barry Gardiner | Labour | 
| Police force | Metropolitan Police | |
| Water company | Affinity Water | |
| Sewage company | Thames Water | |
| NUTS/ITL 3 | Brent | |
| NUTS/ITL 2 | Outer London - West and North West | |
| NUTS/ITL 1 | London | |
| Country | England | E92000001 | 
| Date introduced | January 1980 | 
|---|---|
| Last updated | September 2025 | 
| User type | Large (addresses receive more than 25 items of mail per day) | 
| Quality | Within the building of the matched address closest to the postcode mean | 
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
|---|---|---|
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Urban: Nearer to a major town or city | |
| Rural/urban (2011) | Urban major conurbation | |
| Built up area (2024) | Brent | E63011958 | 
| Census output area (2021) | E00002356 | |
| Census output area (2011) | 4C2 | |
| Lower layer super output area (2021) | Brent 006E | E01000487 | 
| Lower layer super output area (2011) | Brent 006E | E01000487 | 
| Middle layer super output area (2021) | Barnhill The Avenue | E02000098 | 
| Middle layer super output area (2011) | Barnhill The Avenue | E02000098 | 
| Travel to work area | London | E30000234 | 
| Average property price in Harrow | £533,144 | 
|---|---|
| Annual change | 0.3% |