# CM21 0HQ: area report for a postcode in East Hertfordshire

CM21 0HQ is a postcode in East Hertfordshire.

A postcode has no figures of its own: each layer is published for whole councils, neighbourhoods or exact points. The figures below are for the whole of East Hertfordshire. Open the map at CM21 0HQ for neighbourhoods and points.

In: [East Hertfordshire](https://openindex.co.uk/east-hertfordshire) › [CM21](https://openindex.co.uk/postcode/cm21) › [CM21 0](https://openindex.co.uk/postcode/cm21-0)

## Around this postcode

- **2 crimes within 500 m**: August, the same as July. East Hertfordshire 011B: 33 a year per 1,000 people. (Map point) https://openindex.co.uk/map/street-crime?around=0.1323,51.8074,CM210HQ
- **Harlow Mill, 1.9 km**: About 24 minutes on foot. (Exact point) https://openindex.co.uk/map/stations?around=0.1323,51.8074,CM210HQ
- **1 school within 800 m**: Nearest is 780 m away. (Exact point) https://openindex.co.uk/map/schools?around=0.1323,51.8074,CM210HQ
- **No property in CM21 0HQ listed at risk of flooding**: From rivers or the sea, with flood defences, in the Environment Agency's assessment. (Postcode) https://openindex.co.uk/map/flood-risk-by-postcode?around=0.1323,51.8074,CM210HQ
- **England’s least deprived 10%**: This neighbourhood, East Hertfordshire 011B. (Neighbourhood) https://openindex.co.uk/map/deprivation-england?around=0.1323,51.8074,CM210HQ
- **£457,417 average price**: For the whole of East Hertfordshire, July 2026. (Council) https://openindex.co.uk/map/house-prices?around=0.1323,51.8074,CM210HQ
- **1 GP practice within 1 km**: Nearest is 130 m away. (Postcode) https://openindex.co.uk/map/gp-practices?around=0.1323,51.8074,CM210HQ
- **No supermarkets within 1 km**: Nearest is 1.3 km away. (Exact point) https://openindex.co.uk/map/supermarkets?around=0.1323,51.8074,CM210HQ
- **37.5% can get gigabit broadband at CM21 0HQ**: Superfast for 100%. What can be ordered, January 2026. (Postcode) https://openindex.co.uk/map/broadband-by-postcode?around=0.1323,51.8074,CM210HQ
- **Low road and rail noise at CM21 0HQ**: Road 46 dB, rail under 40 dB or not modelled (Lden, modelled for 2021) (Postcode) https://openindex.co.uk/map/noise-by-postcode?around=0.1323,51.8074,CM210HQ
- **Not in a radon Affected Area**: Under 1% of homes in this 1 km square are estimated to be at or above the radon Action Level. (1 km grid) https://openindex.co.uk/map/radon?around=0.1323,51.8074,CM210HQ
- **11.6 µg/m³ nitrogen dioxide**: Modelled yearly average for this 1 km square, 2025. (1 km grid) https://openindex.co.uk/map/nitrogen-dioxide?around=0.1323,51.8074,CM210HQ

## Nearest schools

| School | Phase | Distance | Ofsted | Results |
| --- | --- | --- | --- | --- |
| [High Wych Church of England Primary School](https://openindex.co.uk/school/high-wych-church-of-england-primary-school-e117398) | Primary | 780 m (10 minutes on foot) | School remains Good, November 2023 | 63% met the expected standard at KS2 (2024/25) |
| [Mandeville Primary School](https://openindex.co.uk/school/mandeville-primary-school-e117305) | Primary | 1.4 km (18 minutes on foot) | Good (overall), February 2023 | 77% met the expected standard at KS2 (2024/25) |
| [Fawbert and Barnard Infants' School](https://openindex.co.uk/school/fawbert-and-barnard-infants-school-e117149) | Primary | 1.5 km (19 minutes on foot) | Outstanding (overall), March 2024 | – |
| [Reedings Junior School](https://openindex.co.uk/school/reedings-junior-school-e117280) | Primary | 1.7 km (22 minutes on foot) | School remains Good (Improving), next inspection graded, March 2024 | 77% met the expected standard at KS2 (2024/25) |
| [Leventhorpe](https://openindex.co.uk/school/leventhorpe-e137156) | Secondary | 1.9 km (24 minutes on foot) | Good (overall), April 2024 | Attainment 8 of 47.1 (2025/26, provisional) |

## Recent sales nearby

| Month | Price | Home | Distance |
| --- | --- | --- | --- |
| November 2025 | £517,500 | Semi-detached, established, freehold | 90 m |
| January 2026 | £645,000 | Detached, established, freehold | 130 m |
| May 2023 | £650,000 | Detached, established, freehold | 130 m |
| March 2025 | £850,000 | Detached, established, freehold | 140 m |
| May 2026 | £580,000 | Detached, established, freehold | 190 m |
| September 2023 | £579,950 | Semi-detached, established, freehold | 210 m |
| October 2025 | £575,000 | Detached, established, freehold | 230 m |
| March 2025 | £380,000 | Terraced, established, freehold | 290 m |

## Within 1 km

- GP practices: GARDENS AND JACOBS MEDICAL PARTNERSHIP (130 m)

## Key figures

- **Average house price: £457,417** (July 2026). East Hertfordshire’s average house price was £457,417 in July 2026 (HM Land Registry). Up 3.7% in a year. Source: UK House Price Index, July 2026. Published 16 September 2026.
- **Median full-time pay: £52,184** (2025). Full-time workers living in East Hertfordshire earned a median of £52,184 in 2025 (ONS earnings survey). 8th highest paid of 348. Source: Annual Survey of Hours and Earnings, 2025. Published 23 October 2025.
- **House price to pay: 8.8×** (2025). A home in East Hertfordshire costs 8.8 times local full-time pay. Joint 96th least affordable of 348. Source: Worked out by Open Index from the UK House Price Index and the ONS earnings survey. Published 16 September 2026.
- **Deprivation score: 9.8** (2025). East Hertfordshire has a deprivation score of 9.8 in the English Indices of Deprivation 2025 (MHCLG). Joint 19th least deprived of 296. Source: English Indices of Deprivation 2025, 2025. Published 30 October 2025.

## East Hertfordshire 011B (Neighbourhood)

- **Deprivation score: 4.5** (2025). East Hertfordshire 011B has a deprivation score of 4.5 in the English Indices of Deprivation 2025 (MHCLG). Joint 2,287th least deprived of 33,755. Source: English Indices of Deprivation 2025, 2025. Published 30 October 2025.
- **Median sale price: £710,000** (2025). The median price paid for a home in East Hertfordshire 011B was £710,000 in 2025. Joint 1,459th most expensive of 31,750. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026.
- **Population: 1,667** (2021). East Hertfordshire 011B had 1,667 usual residents at the census (ONS Census 2021). Joint 14,929th most populated of 46,844. Source: Census 2021, England and Wales and Scotland's Census 2022 and Census 2021, Northern Ireland, 2021. Published 21 July 2026.
- **Gigabit broadband coverage: 70.0%** (January 2026). In East Hertfordshire 011B, 70.0% of homes and businesses could get gigabit-capable broadband in January 2026 (Ofcom). UK 87.8%. Source: Connected Nations (Ofcom), January 2026. Published 13 May 2026.

## CM21 (Postcode district)

- **Median sale price: £450,000** (2025). The median price paid for a home in CM21 was £450,000 in 2025. Joint 412th most expensive of 2,235. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026.
- **Population: 11,371** (2021). CM21 had 11,371 usual residents at the census (ONS Census 2021). 803rd least populated of 2,756. Source: Census 2021, England and Wales and Scotland's Census 2022 and Census 2021, Northern Ireland, 2021. Published 21 July 2026.
- **People in radon Affected Area squares: 21%** (2022). About 21% of people in CM21 live in a 1 km square that the radon atlas marks as a radon Affected Area. UK 44%. Source: Worked out by Open Index from the UKHSA and BGS radon atlas and census output areas. Published 1 December 2022.
- **Gigabit broadband coverage: 82.8%** (January 2026). In CM21, 82.8% of homes and businesses could get gigabit-capable broadband in January 2026 (Ofcom). UK 87.8%. Source: Connected Nations (Ofcom), January 2026. Published 13 May 2026.

## About

- Type: Postcode
- Council: [East Hertfordshire](https://openindex.co.uk/east-hertfordshire)
- Centre: 51.8074, 0.1323

Council: [East Hertfordshire](https://openindex.co.uk/east-hertfordshire) (District, 100%).

## Your MP

- [Hertford and Stortford](https://openindex.co.uk/constituency/hertford-and-stortford): Josh Dean (Labour), MP since July 2024.

As of 18 October 2026. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

## Sources

- [Street-level crime](https://openindex.co.uk/sources/street-crime), August 2026 (Map point)
- [Rail and Tube stations](https://openindex.co.uk/sources/stations), 2024/25 (Exact point)
- [Schools](https://openindex.co.uk/sources/schools) (Exact point)
- [Flood risk by postcode](https://openindex.co.uk/sources/flood-risk-by-postcode), June 2026 (Postcode)
- [English Indices of Deprivation 2025](https://openindex.co.uk/sources/deprivation-england), 2025 (Neighbourhood)
- [Average house price](https://openindex.co.uk/sources/house-prices), July 2026 (Council)
- [GP practices](https://openindex.co.uk/sources/gp-practices) (Postcode)
- [Supermarkets](https://openindex.co.uk/sources/supermarkets) (Exact point)
- [Broadband by postcode](https://openindex.co.uk/sources/broadband-by-postcode), January 2026 (Postcode)
- [Road and rail noise by postcode](https://openindex.co.uk/sources/noise-by-postcode), 2021 (Postcode)
- [Radon potential](https://openindex.co.uk/sources/radon) (1 km grid)
- [Nitrogen dioxide (NO2)](https://openindex.co.uk/sources/nitrogen-dioxide), 2025 (1 km grid)

On the map: https://openindex.co.uk/map/sold-prices?around=0.1323,51.8074,CM210HQ

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/cm21-0hq.

Open Index's own text and the figures it works out are licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source data keeps its publishers' licences, named with each figure. Give each figure's period and source with it.

Snapshot 2026.10.8, https://doi.org/10.5281/zenodo.23508850. The HTML page: https://openindex.co.uk/postcode/cm21-0hq