| Postcode | KT3 6JR | 
|---|---|
| Post Town | New Malden | 
| Nearest station | Motspur Park (1 km) | 
| Bus stops | West Barnes Level Crossing (S) West Barnes Level Crossing (N) Cavendish Avenue (KT3) (E) Shannon Corner  Cavendish Avenue (W) Trafalgar Court (S) Carters Bridge (W) | 
| London travel zone | 4 | 
| Roads in this postcode | |
| Number of UPRNs | 20 View | 
| Known addresses | 3 Seaforth Avenue, New Malden 7 Seaforth Avenue, New Malden 9A Seaforth Avenue, New Malden 15 - 17 Seaforth Avenue, New Malden 15 Seaforth Avenue, New Malden 17 Seaforth Avenue, New Malden 19 Seaforth Avenue, New Malden 29 Seaforth Avenue, New Malden 33 Seaforth Avenue, New Malden | 
| Main property type | Terraced | 
| Businesses | 
| Latitude | 51.400505 | |
|---|---|---|
| Longitude | -0.23627 | |
| Easting | 522788 | |
| Northing | 168306 | |
| Grid reference | TQ227683 | |
| UTM reference | 30U 692239 5697988 | |
| what3words | tummy.spoken.tinsel | |
| FixPhrase | cringe magma sapling uniformed | |
| Plus code | 9C3XCQ27+6F | |
| Altitude | 18 metres (58 feet) | |
| Sunrise (today) | 6:53 | |
| Sunset (today) | 16:38 | |
| Distance away | ||
| Distance to sea | 45.3 KMs (28.1 miles) | 
| Parish | Merton, unparished area | E43000214 | 
|---|---|---|
| Ward | West Barnes | E05013827 | 
| London Borough | Merton | E09000024 | 
| County | Greater London | E11000009 | 
| Constituency (2024) | Wimbledon | E14001586 | 
| MP | Mr Paul Kohler | Liberal Democrat | 
| Police force | Metropolitan Police | |
| Water company | Thames Water | |
| NUTS/ITL 3 | Merton, Kingston upon Thames and Sutton | |
| NUTS/ITL 2 | Outer London - South | |
| 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) | 39 | |
|---|---|---|
| Households (2011) | 17 | |
| 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) | Merton | E63012245 | 
| Census output area (2021) | E00017545 | |
| Census output area (2011) | 4C3 | |
| Lower layer super output area (2021) | Merton 016E | E01003471 | 
| Lower layer super output area (2011) | Merton 016E | E01003471 | 
| Middle layer super output area (2021) | Raynes Park | E02000704 | 
| Middle layer super output area (2011) | Raynes Park | E02000704 | 
| Travel to work area | London | E30000234 | 
| Average property price in Kingston upon Thames | £561,027 | 
|---|---|
| Annual change | -3.4% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 7 Seaforth Avenue, New Malden | Detached (freehold) | Sep 2020 | £555,000 | 
| Detached (freehold) | Nov 2012 | £285,000 | |
| 17 Seaforth Avenue, New Malden | Terraced (freehold) | Jul 2017 | £710,000 | 
| Terraced (freehold) | Jul 2016 | £445,000 | |
| 15 Seaforth Avenue, New Malden | Terraced (freehold) | Sep 2016 | £630,000 | 
| 29 Seaforth Avenue, New Malden | Semi-detached (freehold) | May 2016 | £560,000 | 
| 3 Seaforth Avenue, New Malden | Semi-detached (freehold) | Nov 2011 | £344,000 | 
| 33 Seaforth Avenue, New Malden | Semi-detached (freehold) | May 2007 | £343,000 | 
| Semi-detached (freehold) | Jan 1996 | £86,000 | |
| 9A Seaforth Avenue, New Malden | Terraced (freehold) | Mar 2003 | £130,000 | 
| 19 Seaforth Avenue, New Malden | Detached (freehold) | Oct 2001 | £219,000 | 
| 15 - 17 Seaforth Avenue, New Malden | Terraced (freehold) | Aug 1997 | £180,000 |