| Postcode | DA3 8LE | 
|---|---|
| Post Town | Longfield | 
| Nearest station | Meopham (2 km) | 
| Bus stops | The Green Man (E) The Green Man (W) Fairlight Cross (S) New Barn Road (W) | 
| Roads in this postcode | |
| Number of UPRNs | 9 View | 
| Known addresses | 3 Martin Down Cottages, Hartley Bottom Road, Longfield 4 Martin Down Cottages, Hartley Bottom Road, Longfield 5 Martin Down Cottages, Hartley Bottom Road, Longfield | 
| Main property type | Terraced | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 51.388913 | |
|---|---|---|
| Longitude | 0.328159 | |
| Easting | 562088 | |
| Northing | 168113 | |
| Grid reference | TQ620681 | |
| UTM reference | 31U 314104 5696462 | |
| what3words | lower.jungle.anyone | |
| FixPhrase | crimson magnify submitter washbasin | |
| Plus code | 9F3298QH+H7 | |
| Altitude | 83 metres (271 feet) | |
| Sunrise (today) | 6:51 | |
| Sunset (today) | 16:35 | |
| Distance away | ||
| Distance to sea | 8.7 KMs (5.4 miles) | 
| Parish | Longfield and New Barn | E04012919 | 
|---|---|---|
| Ward | Longfield, New Barn & Southfleet | E05012401 | 
| Local Authority District | Dartford | E07000107 | 
| County Electoral Division | Dartford Rural | E58000696 | 
| Local Authority | Kent | E10000016 | 
| County | Kent | E10000016 | 
| Constituency (2024) | Dartford | E14001191 | 
| MP | Jim Dickson | Labour | 
| Police force | Kent | |
| Water company | South East Water | |
| Sewage company | Thames Water | |
| NUTS/ITL 3 | Kent Thames Gateway | |
| 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) | 12 | |
|---|---|---|
| Households (2011) | 7 | |
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Smaller rural: Nearer to a major town or city | |
| Rural/urban (2011) | Rural hamlet and isolated dwellings | |
| Census output area (2021) | E00122649 | |
| Census output area (2011) | 6B4 | |
| Lower layer super output area (2021) | Dartford 013C | E01024159 | 
| Lower layer super output area (2011) | Dartford 013C | E01024159 | 
| Middle layer super output area (2021) | Longfield, New Barn & Southfleet | E02005040 | 
| Middle layer super output area (2011) | Longfield, New Barn & Southfleet | E02005040 | 
| Travel to work area | London | E30000234 | 
| Average property price in Dartford | £385,502 | 
|---|---|
| Annual change | 2.8% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 3 Martin Down Cottages, Hartley Bottom Road, Longfield | Semi-detached (freehold) | Sep 2021 | £385,000 | 
| Semi-detached (freehold) | May 2005 | £187,500 | |
| Semi-detached (freehold) | Apr 1995 | £56,000 | |
| 5 Martin Down Cottages, Hartley Bottom Road, Longfield | Terraced (freehold) | Dec 1997 | £80,000 | 
| 4 Martin Down Cottages, Hartley Bottom Road, Longfield | Terraced (freehold) | Nov 1997 | £79,950 |