| Postcode | HA2 8RA | 
|---|---|
| Post Town | Harrow | 
| Nearest station | Northolt (1 km) | 
| Bus stops | Somervell Road (N) Sandown Way (N) Sandown Way (S) Holyrood Avenue (E) Eastcote Lane (HA4) (S) Eastcote Lane (HA4) (N) | 
| London travel zone | 5 | 
| Roads in this postcode | |
| Number of UPRNs | 20 View | 
| Known addresses | 111 Walton Avenue, Harrow 113 Walton Avenue, Harrow 117 Walton Avenue, Harrow 119 Walton Avenue, Harrow 121 Walton Avenue, Harrow 123 Walton Avenue, Harrow 127 Walton Avenue, Harrow 129 Walton Avenue, Harrow 131 Walton Avenue, Harrow 133 Walton Avenue, Harrow 135 Walton Avenue, Harrow 137 Walton Avenue, Harrow 139 Walton Avenue, Harrow 141 Walton Avenue, Harrow 143 Walton Avenue, Harrow 145 Walton Avenue, Harrow 145A Walton Avenue, Harrow 147 Walton Avenue, Harrow | 
| Main property type | Semi-detached | 
| Businesses | 
| Latitude | 51.556732 | |
|---|---|---|
| Longitude | -0.37576 | |
| Easting | 512699 | |
| Northing | 185455 | |
| Grid reference | TQ126854 | |
| UTM reference | 30U 681915 5715002 | |
| what3words | refuse.pints.roses | |
| FixPhrase | cringing magician spilt unviable | |
| Plus code | 9C3XHJ4F+MM | |
| Altitude | 42 metres (138 feet) | |
| Sunrise (today) | 6:54 | |
| Sunset (today) | 16:38 | |
| Distance away | ||
| Distance to sea | 55.6 KMs (34.5 miles) | 
| Parish | Harrow, unparished area | E43000205 | 
|---|---|---|
| Ward | Roxeth | E05013559 | 
| London Borough | Harrow | E09000015 | 
| County | Greater London | E11000009 | 
| Constituency (2024) | Harrow West | E14001271 | 
| MP | Gareth Thomas | Labour | 
| Police force | Metropolitan Police | |
| Water company | Affinity Water | |
| Sewage company | Thames Water | |
| NUTS/ITL 3 | Harrow and Hillingdon | |
| 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 | Small (addresses receive less than 25 items of mail per day) | 
| Quality | Within the building of the matched address closest to the postcode mean | 
| Population (2011) | 72 | |
|---|---|---|
| Households (2011) | 20 | |
| 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) | Harrow | E63011900 | 
| Census output area (2021) | E00011100 | |
| Census output area (2011) | 4C2 | |
| Lower layer super output area (2021) | Harrow 031E | E01002224 | 
| Lower layer super output area (2011) | Harrow 031E | E01002224 | 
| Middle layer super output area (2021) | Earlsmead | E02000463 | 
| Middle layer super output area (2011) | Earlsmead | E02000463 | 
| Travel to work area | Slough and Heathrow | E30000266 | 
| Average property price in Harrow | £533,144 | 
|---|---|
| Annual change | 0.3% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 131 Walton Avenue, Harrow | Semi-detached (freehold) | Jan 2022 | £235,000 | 
| Semi-detached (freehold) | Dec 2005 | £235,000 | |
| 113 Walton Avenue, Harrow | Semi-detached (freehold) | May 2021 | £560,000 | 
| 129 Walton Avenue, Harrow | Semi-detached (freehold) | Aug 2020 | £395,000 | 
| Semi-detached (freehold) | Dec 2005 | £227,000 | |
| Semi-detached (freehold) | Oct 1997 | £98,000 | |
| 139 Walton Avenue, Harrow | Semi-detached (freehold) | May 2016 | £475,000 | 
| 127 Walton Avenue, Harrow | Semi-detached (freehold) | Dec 2015 | £399,950 | 
| Semi-detached (freehold) | Sep 1999 | £117,500 | |
| 119 Walton Avenue, Harrow | Semi-detached (freehold) | Nov 2015 | £445,000 | 
| 135 Walton Avenue, Harrow | Semi-detached (freehold) | Apr 2011 | £288,000 | 
| Semi-detached (freehold) | Dec 2004 | £228,200 | |
| Semi-detached (freehold) | Jun 2003 | £258,000 | |
| 117 Walton Avenue, Harrow | Semi-detached (freehold) | May 2010 | £250,000 | 
| 137 Walton Avenue, Harrow | Semi-detached (freehold) | Apr 2010 | £300,000 | 
| Semi-detached (freehold) | Aug 2004 | £225,000 | |
| 133 Walton Avenue, Harrow | Semi-detached (freehold) | May 2007 | £270,000 |