| Postcode | SG12 9SJ | 
|---|---|
| Post Town | Ware | 
| Nearest station | St Margarets (Herts) (1 km) | 
| Bus stops | No nearby bus stops | 
| Roads in this postcode | |
| Number of UPRNs | 1 View | 
| Known addresses | Old School House, Great Amwell | 
| Main property type | Detached | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 51.793801 | |
|---|---|---|
| Longitude | -0.011607 | |
| Easting | 537225 | |
| Northing | 212442 | |
| Grid reference | TL372124 | |
| UTM reference | 30U 706074 5742329 | |
| what3words | dining.hello.priced | |
| FixPhrase | crinkly magnetic superhero verse | |
| Plus code | 9C3XQXVQ+G9 | |
| Altitude | 58 metres (190 feet) | |
| Sunrise (today) | 6:51 | |
| Sunset (today) | 16:37 | |
| Distance away | ||
| Distance to sea | 45.4 KMs (28.2 miles) | 
| Parish | Great Amwell | E04004732 | 
|---|---|---|
| Ward | Great Amwell & Stansteads | E05015363 | 
| Local Authority District | East Hertfordshire | E07000242 | 
| County Electoral Division | Ware South | E58000673 | 
| Local Authority | Hertfordshire | E10000015 | 
| County | Hertfordshire | E10000015 | 
| Constituency (2024) | Broxbourne | E14001139 | 
| MP | Lewis Cocking | Conservative | 
| Police force | Hertfordshire | |
| Water 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 | 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) | 2 | |
|---|---|---|
| Households (2011) | 1 | |
| 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 village | |
| Built up area (2024) | Great Amwell | E63011476 | 
| Census output area (2021) | E00119200 | |
| Census output area (2011) | 6A2 | |
| Lower layer super output area (2021) | East Hertfordshire 018A | E01023468 | 
| Lower layer super output area (2011) | East Hertfordshire 018A | E01023468 | 
| Middle layer super output area (2021) | Hertford Heath & Stanstead St Margarets | E02004895 | 
| Middle layer super output area (2011) | Hertford Heath & Stanstead St Margarets | E02004895 | 
| Travel to work area | Cambridge | E30000186 | 
| Average property price in Stevenage | £395,224 | 
|---|---|
| Annual change | 0.3% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| Old School House, Great Amwell | Detached (freehold) | Nov 1995 | £299,500 |