| Postcode | SG4 8PH | 
|---|---|
| Post Town | Hitchin | 
| Nearest station | Luton Airport Parkway (5 km) | 
| Bus stops | 
                       Millway (SW) 
Brownings Lane (N) 
Brownings Lane (S) 
                     | 
                  
| Roads in this postcode | |
| Number of UPRNs | 10 View | 
| Known addresses | 
                       21 Windmill Road, Breachwood Green 
                       | 
                  
| Main property type | Semi-detached | 
| Businesses | 
                     
                        No businesses found
                     
                   | 
                
| Latitude | 51.892787 | |
|---|---|---|
| Longitude | -0.335985 | |
| Easting | 514605 | |
| Northing | 222890 | |
| Grid reference | TL146228 | |
| UTM reference | 30U 683306 5752468 | |
| what3words | economies.chest.hears | |
| FixPhrase | crisped magician suitor valley | |
| Plus code | 9C3XVMV7+4J | |
| Altitude | 156 metres (511 feet) | |
| Sunrise (today) | 7:02 | |
| Sunset (today) | 16:29 | |
| Distance away | ||
| Distance to sea | 69.4 KMs (43.1 miles) | 
| Parish | King's Walden | E04004782 | 
|---|---|---|
| Ward | Hitchwood | E05015767 | 
| Local Authority District | North Hertfordshire | E07000099 | 
| County Electoral Division | Hitchin Rural | E58000641 | 
| Local Authority | Hertfordshire | E10000015 | 
| County | Hertfordshire | E10000015 | 
| Constituency (2024) | Hitchin | E14001289 | 
| MP | Alistair Strathern | 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 | 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) | 11 | |
|---|---|---|
| Households (2011) | 5 | |
| 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 | |
| Census output area (2021) | E00119978 | |
| Census output area (2011) | 8A1 | |
| Lower layer super output area (2021) | North Hertfordshire 014D | E01023624 | 
| Lower layer super output area (2011) | North Hertfordshire 014D | E01023624 | 
| Middle layer super output area (2021) | Ickleford, Great Offley & Whitwell | E02004922 | 
| Middle layer super output area (2011) | Ickleford, Great Offley & Whitwell | E02004922 | 
| Travel to work area | Luton | E30000237 | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 21 Windmill Road, Breachwood Green | Semi-detached (freehold) | Sep 2022 | £425,000 | 
| Semi-detached (freehold) | Mar 2001 | £142,000 |