CM21 0BB maps, stats, and open data
CM21 0BB lies on Heron Close in Sawbridgeworth. CM21 0BB is located in the Sawbridgeworth electoral ward, within the local authority district of East Hertfordshire and the English Parliamentary constituency of Hertford and Stortford. The Sub Integrated Care Board (ICB) Location is NHS Hertfordshire and West Essex ICB - 06K and the police force is Hertfordshire. This postcode has been in use since October 1985.
CM21 0BB geodata
| Easting | 547728 |
| Northing | 214346 |
| Latitude | 51.808238 |
| Longitude | 0.141391 |
Where is CM21 0BB?
| Street | Heron Close |
| Town/City | Sawbridgeworth |
| Country | England |
| Postcode District | CM21 |
CM21 0BB Elevation
Elevation or altitude of CM21 0BB as distance above sea level:
| Metres | Feet | |
|---|---|---|
| Elevation | 60m | 197ft |
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.
Politics
| Ward | Sawbridgeworth |
|---|---|
| Constituency | Hertford And Stortford |
House Prices
Sales of detached houses in CM21 0BB
2025 31 MAR £780,000 |
2023 14 DEC £882,500 |
2023 28 NOV £860,000 |
2021 25 MAR £789,500 |
2017 11 AUG £700,000 |
5, HERON CLOSE, SAWBRIDGEWORTH, CM21 0BB 2016 20 OCT £749,950 |
8, HERON CLOSE, SAWBRIDGEWORTH, CM21 0BB 2015 26 MAR £612,000 |
2, HERON CLOSE, SAWBRIDGEWORTH, CM21 0BB 2013 13 MAR £495,000 |
7, HERON CLOSE, SAWBRIDGEWORTH, CM21 0BB 2012 21 SEP £579,950 |
4, HERON CLOSE, SAWBRIDGEWORTH, CM21 0BB 2012 31 AUG £550,000 |
Licence: Contains HM Land Registry data © Crown copyright and database right 2025. This data is licensed under the Open Government Licence v3.0.
Transport
Nearest bus stops to CM21 0BB
| High Wych Road (Harlow Road) | Sawbridgeworth | 143m |
| High Wych Road (Harlow Road) | Sawbridgeworth | 157m |
| Hand Lane (High Wych Road) | High Wych | 322m |
| Springhall Road (London Road) | Sawbridgeworth | 329m |
| Hand Lane (High Wych Road) | High Wych | 367m |
Nearest railway stations to CM21 0BB
| Sawbridgeworth Station | 1.5km |
| Harlow Mill Station | 2.1km |
| Harlow Town Station | 4.4km |
Broadband
Broadband access in CM21 0BB (2020 data)
| Percentage of properties with Next Generation Access | 100.0% |
| Percentage of properties with Superfast Broadband | 100.0% |
| Percentage of properties with Ultrafast Broadband | 22.7% |
| Percentage of properties with Full Fibre Broadband | 0.0% |
Superfast Broadband is between 30Mbps and 300Mbps
Ultrafast Broadband is > 300Mbps
Broadband speed in CM21 0BB (2019 data)
Download
| Median download speed | 61.6Mbps |
| Average download speed | 70.8Mbps |
| Maximum download speed | 200.00Mbps |
Upload
| Median upload speed | 18.7Mbps |
| Average upload speed | 16.7Mbps |
| Maximum upload speed | 20.00Mbps |
Broadband limitations in CM21 0BB (2020 data)
| 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% |
CM21 0BB gas and electricity consumption
Estimated total energy consumption in CM21 0BB by fuel type, 2015.
Gas
| Consumption (kWh) | 529,312 |
|---|---|
| Meter count | 21 |
| Mean (kWh/meter) | 25,205 |
| Median (kWh/meter) | 24,196 |
Electricity
| Consumption (kWh) | 143,331 |
|---|---|
| Meter count | 19 |
| Mean (kWh/meter) | 7,544 |
| Median (kWh/meter) | 7,618 |
- Consumption: The estimated total energy consumption, in kWh, across all meters in CM21 0BB, for 2015.
- Meter count: The total number of meters in CM21 0BB.
- Mean: The mean average consumption per meter, in kWh.
- Median: The median average consumption per meter, in kWh.
Source: Postcode level electricity estimates: 2015 (experimental)
Licence: Open Government Licence
Deprivation
15.6% of English postcodes are less deprived than CM21 0BB:Food Standards Agency
Three nearest food hygiene ratings to CM21 0BB (metres)
➜ Get more ratings from the Food Standards Agency
Nearest post box to CM21 0BB
| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Brook Road | 17:15 | 11:45 | 291m |
| Litle Penny | 17:00 | 11:45 | 365m |
| Gilders | 17:30 | 11:45 | 474m |
CM21 0BB ITL and CM21 0BB LAU
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 CM21 0BB:
| ITL 1 Code | Name |
|---|---|
| TLH | East |
| ITL 2 Code | Name |
| TLH2 | Bedfordshire and Hertfordshire |
| ITL 3 Code | Name |
| TLH23 | Hertfordshire CC |
| LAU 1 Code | Name |
| E07000242 | East Hertfordshire |
CM21 0BB census areas
The below table lists the Census Output Area (OA), Lower Layer Super Output Area (LSOA), and Middle Layer Super Output Area (MSOA) for CM21 0BB:
| Code | Name | |
|---|---|---|
| OA | E00119359 | |
| LSOA | E01023500 | East Hertfordshire 011B |
| MSOA | E02004888 | East Hertfordshire 011 |
Nearest postcodes to CM21 0BB
| CM21 9HT | High Wych Road | 64m |
| CM21 0EY | High Tree Close | 95m |
| CM21 0AZ | High Wych Road | 103m |
| CM21 0ER | The Crest | 126m |
| CM21 9HU | Bonks Hill | 143m |
| CM21 9HP | Harlow Road | 160m |
| CM21 9HS | Pishiobury Road | 221m |
| CM21 0EU | Dale Court | 224m |
| CM21 0EP | Burnside | 228m |
| CM21 9HE | Newton Drive | 238m |
- Contains OS data © Crown copyright and database right (2025)
- Contains Royal Mail data © Royal Mail copyright and Database right (2025)
- Contains National Statistics data © Crown copyright and database right (2025)
- Data produced by Land Registry © Crown copyright (2025)
- Contains Environment Agency data licensed under the Open Government Licence v3.0
- Everything else © GetTheData Publishing Limited (2025)
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