| Postcode | DA3 8QN | 
|---|---|
| Post Town | Longfield | 
| Nearest station | Longfield (4 km) | 
| Bus stops | Bowes Wood (SW) Lambardes (E) Spring Cross (E) Foxbury (E) | 
| Roads in this postcode | |
| Number of UPRNs | 29 View | 
| Known addresses | 3 Westfield, New Ash Green 6 Westfield, New Ash Green 7 Westfield, New Ash Green 8 Westfield, New Ash Green 12 Westfield, New Ash Green 13 Westfield, New Ash Green 14 Westfield, New Ash Green 15 Westfield, New Ash Green 16 Westfield, New Ash Green 17 Westfield, New Ash Green 20 Westfield, New Ash Green 22 Westfield, New Ash Green 23 Westfield, New Ash Green 24 Westfield, New Ash Green 25 Westfield, New Ash Green | 
| Main property type | Semi-detached | 
| Businesses | 
| Latitude | 51.360602 | |
|---|---|---|
| Longitude | 0.308623 | |
| Easting | 560828 | |
| Northing | 164922 | |
| Grid reference | TQ608649 | |
| UTM reference | 31U 312629 5693364 | |
| what3words | mats.decent.noises | |
| FixPhrase | crimson magnify spooky unsorted | |
| Plus code | 9F329865+6C | |
| Altitude | 143 metres (469 feet) | |
| Sunrise (today) | 6:51 | |
| Sunset (today) | 16:35 | |
| Distance away | ||
| Distance to sea | 12 KMs (7.4 miles) | 
| Parish | Ash-cum-Ridley | E04012390 | 
|---|---|---|
| Ward | Ash and New Ash Green | E05009956 | 
| Local Authority District | Sevenoaks | E07000111 | 
| County Electoral Division | Sevenoaks Rural North East | E58000730 | 
| Local Authority | Kent | E10000016 | 
| County | Kent | E10000016 | 
| Constituency (2024) | Tonbridge | E14001549 | 
| MP | Tom Tugendhat | Conservative | 
| Police force | Kent | |
| Water company | South East Water | |
| Sewage company | Thames Water | |
| NUTS/ITL 3 | West Kent | |
| NUTS/ITL 2 | Kent | |
| NUTS/ITL 1 | South East | |
| 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) | 66 | |
|---|---|---|
| Households (2011) | 26 | |
| 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 city and town | |
| Built up area (2024) | Longfield, New Ash Green and Hartley | E63012295 | 
| Census output area (2021) | E00123933 | |
| Census output area (2011) | 6B2 | |
| Lower layer super output area (2021) | Sevenoaks 016C | E01024415 | 
| Lower layer super output area (2011) | Sevenoaks 016C | E01024415 | 
| Middle layer super output area (2021) | New Ash Green | E02006832 | 
| Middle layer super output area (2011) | New Ash Green | E02006832 | 
| Travel to work area | London | E30000234 | 
| Average property price in Dartford | £385,502 | 
|---|---|
| Annual change | 2.8% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 6 Westfield, New Ash Green | Detached (freehold) | Feb 2021 | £560,000 | 
| 14 Westfield, New Ash Green | Semi-detached (freehold) | Aug 2019 | £425,000 | 
| Semi-detached (freehold) | Jul 2002 | £170,000 | |
| 23 Westfield, New Ash Green | Detached (freehold) | Oct 2018 | £405,000 | 
| 24 Westfield, New Ash Green | Detached (freehold) | Aug 2018 | £512,500 | 
| 12 Westfield, New Ash Green | Semi-detached (freehold) | Dec 2014 | £379,995 | 
| Semi-detached (freehold) | Aug 2011 | £300,000 | |
| Semi-detached (freehold) | May 2007 | £319,995 | |
| Semi-detached (freehold) | May 1999 | £134,995 | |
| 17 Westfield, New Ash Green | Detached (freehold) | Dec 2013 | £297,000 | 
| 13 Westfield, New Ash Green | Semi-detached (freehold) | Nov 2012 | £309,000 | 
| 22 Westfield, New Ash Green | Terraced (freehold) | Jun 2010 | £320,000 | 
| Terraced (freehold) | Sep 2004 | £302,500 | |
| Terraced (freehold) | Sep 1999 | £160,000 | |
| 3 Westfield, New Ash Green | Semi-detached (freehold) | Oct 2009 | £290,000 | 
| Semi-detached (freehold) | Aug 1997 | £138,000 | |
| 16 Westfield, New Ash Green | Semi-detached (freehold) | May 2008 | £310,000 |