| Postcode | AL9 5EF | 
|---|---|
| Post Town | Hatfield | 
| Nearest station | Hatfield (Herts) (0 km) | 
| Bus stops | Hatfield Railway Station (N) The Ryde (NE) St Etheldreda's Drive (SE) St Etheldreda's Drive (NW) Cecil Crescent (SW) Cecil Crescent (NE) | 
| Roads in this postcode | |
| Number of UPRNs | 10 View | 
| Known addresses | 1 Dunham Mews, Hatfield 2 Dunham Mews, Hatfield 3 Dunham Mews, Hatfield 4 Dunham Mews, Hatfield 5 Dunham Mews, Hatfield 6 Dunham Mews, Hatfield 7 Dunham Mews, Hatfield 8 Dunham Mews, Hatfield 9 Dunham Mews, Hatfield | 
| Main property type | Terraced | 
| Businesses | 
| Latitude | 51.764067 | |
|---|---|---|
| Longitude | -0.213442 | |
| Easting | 523388 | |
| Northing | 208775 | |
| Grid reference | TL233087 | |
| UTM reference | 30U 692285 5738471 | |
| what3words | volunteered.sulk.hats | |
| FixPhrase | crinkly magma squeeze tightrope | |
| Plus code | 9C3XQQ7P+JJ | |
| Altitude | 77 metres (254 feet) | |
| Sunrise (today) | 6:54 | |
| Sunset (today) | 16:36 | |
| Distance away | ||
| Distance to sea | 54.3 KMs (33.7 miles) | 
| Parish | Hatfield | E04004819 | 
|---|---|---|
| Ward | Hatfield East | E05011062 | 
| Local Authority District | Welwyn Hatfield | E07000241 | 
| County Electoral Division | Hatfield East | E58000627 | 
| Local Authority | Hertfordshire | E10000015 | 
| County | Hertfordshire | E10000015 | 
| Constituency (2024) | Welwyn Hatfield | E14001573 | 
| MP | Andrew Lewin | Labour | 
| Police force | Hertfordshire | |
| Water company | Affinity Water | |
| Sewage company | Thames Water | |
| NUTS/ITL 3 | North and East Hertfordshire | |
| NUTS/ITL 2 | Bedfordshire and Hertfordshire | |
| NUTS/ITL 1 | East of England | |
| Country | England | E92000001 | 
| Date introduced | November 2010 | 
|---|---|
| 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) | 8 | |
| 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) | Hatfield | E63011549 | 
| Census output area (2021) | E00121500 | |
| Census output area (2011) | 5A3 | |
| Lower layer super output area (2021) | Welwyn Hatfield 011C | E01023926 | 
| Lower layer super output area (2011) | Welwyn Hatfield 011C | E01023926 | 
| Middle layer super output area (2021) | Hatfield East | E02004990 | 
| Middle layer super output area (2011) | Hatfield East | E02004990 | 
| Travel to work area | Stevenage and Welwyn Garden City | E30000272 | 
| Average property price in St Albans | £541,094 | 
|---|---|
| Annual change | -0.5% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 9 Dunham Mews, Hatfield | Flat (leasehold) | Sep 2022 | £440,000 | 
| Flat (leasehold) | Oct 2020 | £370,000 | |
| New build flat (leasehold) | Feb 2011 | £274,400 | |
| 2 Dunham Mews, Hatfield | Terraced (freehold) | Apr 2021 | £430,000 | 
| New build terraced (freehold) | Dec 2010 | £249,950 | |
| 7 Dunham Mews, Hatfield | Terraced (freehold) | May 2020 | £405,000 | 
| New build terraced (freehold) | Nov 2010 | £269,950 | |
| 1 Dunham Mews, Hatfield | Semi-detached (freehold) | Nov 2017 | £391,693 | 
| New build semi-detached (freehold) | Jan 2011 | £250,000 | |
| 6 Dunham Mews, Hatfield | Terraced (freehold) | Sep 2014 | £292,000 | 
| New build terraced (freehold) | Jan 2011 | £250,000 | |
| 5 Dunham Mews, Hatfield | New build terraced (freehold) | Feb 2011 | £249,950 | 
| 3 Dunham Mews, Hatfield | New build terraced (freehold) | Jan 2011 | £249,950 | 
| 4 Dunham Mews, Hatfield | New build terraced (freehold) | Nov 2010 | £269,950 | 
| 8 Dunham Mews, Hatfield | New build flat (leasehold) | Nov 2010 | £175,000 |