SO21 3BU lies on Blackthorn Close in South Wonston, Winchester. SO21 3BU is located in the Wonston and Micheldever electoral ward, within the local authority district of Winchester and the English Parliamentary constituency of Winchester. The Sub Integrated Care Board (ICB) Location is NHS Hampshire and Isle of Wight ICB - D9Y0V and the police force is Hampshire. This postcode has been in use since April 1985.


| Easting | 446431 |
| Northing | 135759 |
| Latitude | 51.119244 |
| Longitude | -1.337996 |
| Street | Blackthorn Close |
| Locality | South Wonston |
| Town/City | Winchester |
| Country | England |
| Postcode District | SO21 |
Elevation or altitude of SO21 3BU as distance above sea level:
| Metres | Feet | |
|---|---|---|
| Elevation | 110m | 361ft |
Elevation is measured from the approximate centre of the postcode, to the nearest point on an OS contour line from OS Terrain 50, which has contour spacing of ten vertical metres.
➜ How high above sea level am I? Find the elevation of your current position using your device's GPS.
| Ward | Wonston And Micheldever |
|---|---|
| Constituency | Winchester |
2025 4 AUG £399,950 |
2006 1 FEB £235,000 |
2004 9 JUL £174,995 |
1999 23 APR £85,000 |
| Groves Close (Downs Road) | Wonston | 79m |
| Groves Close (Downs Road) | Wonston | 87m |
| Orchard Road (Downs Road) | Wonston | 277m |
| Markson Road (Downs Road) | Wonston | 327m |
| Downs Road (Wrights Close) | Wonston | 358m |
| Percentage of properties with Next Generation Access | 100.0% |
| Percentage of properties with Superfast Broadband | 100.0% |
| Percentage of properties with Ultrafast Broadband | 0.0% |
| Percentage of properties with Full Fibre Broadband | 0.0% |
Superfast Broadband is between 30Mbps and 300Mbps
Ultrafast Broadband is > 300Mbps
| Median download speed | 27.4Mbps |
| Average download speed | 24.0Mbps |
| Maximum download speed | 42.03Mbps |
| Median upload speed | 5.7Mbps |
| Average upload speed | 4.7Mbps |
| Maximum upload speed | 9.05Mbps |
| Percentage of properties unable to receive 2Mbps | 0.0% |
| Percentage of properties unable to receive 5Mbps | 0.0% |
| Percentage of properties unable to receive 10Mbps | 0.0% |
| Percentage of properties unable to receive 30Mbps | 0.0% |
Estimated total energy consumption in SO21 3BU by fuel type, 2015.
| Consumption (kWh) | 291,296 |
|---|---|
| Meter count | 33 |
| Mean (kWh/meter) | 8,827 |
| Median (kWh/meter) | 8,815 |
| Consumption (kWh) | 97,627 |
|---|---|
| Meter count | 32 |
| Mean (kWh/meter) | 3,051 |
| Median (kWh/meter) | 2,734 |



➜ Get more ratings from the Food Standards Agency
| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| New Barn Crawley | 16:15 | 07:00 | 2,600m |
| Littleton Manor | 16:15 | 08:30 | 3,076m |
| Crawley Manor | 16:15 | 07:45 | 3,617m |
The below table lists the International Territorial Level (ITL) codes (formerly Nomenclature of Territorial Units for Statistics (NUTS) codes) and Local Administrative Units (LAU) codes for SO21 3BU:
| ITL 1 Code | Name |
|---|---|
| TLJ | South East (England) |
| ITL 2 Code | Name |
| TLJ3 | Hampshire and Isle of Wight |
| ITL 3 Code | Name |
| TLJ36 | Central Hampshire |
| LAU 1 Code | Name |
| E07000094 | Winchester |
The below table lists the Census Output Area (OA), Lower Layer Super Output Area (LSOA), and Middle Layer Super Output Area (MSOA) for SO21 3BU:
| Code | Name | |
|---|---|---|
| OA | E00118318 | |
| LSOA | E01023287 | Winchester 001B |
| MSOA | E02004829 | Winchester 001 |
| SO21 3GY | Cloudbank | 96m |
| SO21 3EP | Groves Close | 102m |
| SO21 3HB | Stainers Lane | 156m |
| SO21 3HS | Downlands Way | 164m |
| SO21 3HZ | Oaklands | 205m |
| SO21 3EW | Downs Road | 207m |
| SO21 3EX | Orchard Road | 209m |
| SO21 3ER | Lower Road | 212m |
| SO21 3EU | Downs Road | 258m |
| SO21 3HT | Walnut Tree Close | 259m |