# CM23 5NQ: area report for a postcode in East Hertfordshire

CM23 5NQ 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 CM23 5NQ for neighbourhoods and points.

In: [East Hertfordshire](https://openindex.co.uk/east-hertfordshire) › [CM23](https://openindex.co.uk/postcode/cm23) › [CM23 5](https://openindex.co.uk/postcode/cm23-5)

## Around this postcode

- **51 crimes within 500 m**: August, down 20% on July. East Hertfordshire 005D: 66 a year per 1,000 people. (Map point) https://openindex.co.uk/map/street-crime?around=0.1683,51.8679,CM235NQ
- **Bishops Stortford, 270 m**: About 3 minutes on foot. (Exact point) https://openindex.co.uk/map/stations?around=0.1683,51.8679,CM235NQ
- **4 schools within 800 m**: Nearest is 190 m away. (Exact point) https://openindex.co.uk/map/schools?around=0.1683,51.8679,CM235NQ
- **No property in CM23 5NQ 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=0.1683,51.8679,CM235NQ
- **England’s least deprived 20%**: This neighbourhood, East Hertfordshire 005D. (Neighbourhood) https://openindex.co.uk/map/deprivation-england?around=0.1683,51.8679,CM235NQ
- **£457,417 average price**: For the whole of East Hertfordshire, July 2026. (Council) https://openindex.co.uk/map/house-prices?around=0.1683,51.8679,CM235NQ
- **3 GP practices within 1 km**: Nearest is 490 m away. (Postcode) https://openindex.co.uk/map/gp-practices?around=0.1683,51.8679,CM235NQ
- **10 supermarkets within 1 km**: Nearest is 190 m away. (Exact point) https://openindex.co.uk/map/supermarkets?around=0.1683,51.8679,CM235NQ
- **Gigabit broadband for every home and business at CM23 5NQ**: Superfast for 100%. What can be ordered, January 2026. (Postcode) https://openindex.co.uk/map/broadband-by-postcode?around=0.1683,51.8679,CM235NQ
- **Low road and rail noise at CM23 5NQ**: Road 50 dB, rail under 40 dB or not modelled (Lden, modelled for 2021) (Postcode) https://openindex.co.uk/map/noise-by-postcode?around=0.1683,51.8679,CM235NQ
- **In a radon Affected Area, class 2 of 6**: 1% to 3% 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=0.1683,51.8679,CM235NQ
- **12.2 µg/m³ nitrogen dioxide**: Modelled yearly average for this 1 km square, 2025. (1 km grid) https://openindex.co.uk/map/nitrogen-dioxide?around=0.1683,51.8679,CM235NQ

## Nearest schools

| School | Phase | Distance | Ofsted | Results |
| --- | --- | --- | --- | --- |
| [The Hertfordshire & Essex High School and Science College](https://openindex.co.uk/school/the-hertfordshire-and-essex-high-school-and-science-college-e140786) | Secondary | 190 m (2 minutes on foot) | Outstanding (overall), November 2023 | Attainment 8 of 62.0 (2025/26, provisional) |
| [Hockerill Anglo-European College](https://openindex.co.uk/school/hockerill-anglo-european-college-e136482) | Secondary | 400 m (5 minutes on foot) | Good (overall), June 2022 | Attainment 8 of 62.3 (2025/26, provisional) |
| [Thorn Grove Primary School](https://openindex.co.uk/school/thorn-grove-primary-school-e117277) | Primary | 540 m (7 minutes on foot) | Standards maintained, October 2024 | 60% met the expected standard at KS2 (2024/25) |
| [White Trees Independent School](https://openindex.co.uk/school/white-trees-independent-school-e140655) | Special | 760 m (10 minutes on foot) | No outcome in Ofsted's file | – |
| [St Michael's Church of England Primary School](https://openindex.co.uk/school/st-michaels-church-of-england-primary-school-e117426) | Primary | 870 m (11 minutes on foot) | Standards maintained, January 2025 | 68% met the expected standard at KS2 (2024/25) |
| [Windhill21](https://openindex.co.uk/school/windhill21-e141851) | Primary | 890 m (11 minutes on foot) | Standards maintained, March 2025 | 70% met the expected standard at KS2 (2024/25) |
| [All Saints Church of England Primary School and Nursery, Bishop's Stortford](https://openindex.co.uk/school/all-saints-church-of-england-primary-school-and-nursery-bishops-stortford-e117472) | Primary | 960 m (12 minutes on foot) | School remains Good, March 2023 | 61% met the expected standard at KS2 (2024/25) |
| [Summercroft Primary School](https://openindex.co.uk/school/summercroft-primary-school-e137351) | Primary | 1 km (13 minutes on foot) | School remains Good, December 2022 | 73% met the expected standard at KS2 (2024/25) |

## Recent sales nearby

| Month | Price | Home | Distance |
| --- | --- | --- | --- |
| May 2026 | £670,000 | Semi-detached, established, freehold | 10 m |
| December 2025 | £237,500 | Flat or maisonette, established, leasehold | 40 m |
| January 2025 | £215,000 | Flat or maisonette, established, leasehold | 50 m |
| August 2025 | £390,000 | Terraced, established, freehold | 90 m |
| October 2025 | £389,995 | Terraced, established, freehold | 100 m |
| March 2026 | £665,000 | Detached, established, freehold | 130 m |
| July 2026 | £320,000 | Terraced, established, freehold | 130 m |
| May 2025 | £615,000 | Semi-detached, established, freehold | 140 m |

## Within 1 km

- Stations: Bishops Stortford (270 m, 3 minutes on foot)
- GP practices: HELIX MEDICAL CENTRE (490 m); SOUTH STREET SURGERY (520 m); CHURCH STREET PARTNERSHIP (720 m)
- Pharmacies: HOBBS PHARMACY (490 m); TRINITY PHARMACY (510 m); BOOTS (670 m)
- Dental practices: THE ORTHODONTIC PRACTICE (270 m); RIVERSIDE DENTAL PRACTICE (450 m); SOUTH STREET (DENTAL SURGERY) (510 m); THE DENTIST (540 m); SMILE AND WELLBEING DENTAL (580 m)
- Supermarkets: Aldi Hockerill Bishop's Stortford (190 m, Aldi); Co-op Bishop's Stortford (290 m, East of England Co-operative); Sainsburys Bishops Stortford (530 m, Sainsburys); M&S Bishops Stortford (540 m, Marks and Spencer); Spar - Bishops Stortford (550 m, Spar)

## 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 005D (Neighbourhood)

- **Deprivation score: 6.4** (2025). East Hertfordshire 005D has a deprivation score of 6.4 in the English Indices of Deprivation 2025 (MHCLG). Joint 4,401st least deprived of 33,755. Source: English Indices of Deprivation 2025, 2025. Published 30 October 2025.
- **Median sale price: £365,229** (2025). The median price paid for a home in East Hertfordshire 005D was £365,229 in 2025. 10,679th most expensive of 31,750. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026.
- **Population: 1,523** (2021). East Hertfordshire 005D had 1,523 usual residents at the census (ONS Census 2021). Joint 22,287th 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: 86.7%** (January 2026). In East Hertfordshire 005D, 86.7% 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.

## CM23 (Postcode district)

- **Median sale price: £437,500** (2025). The median price paid for a home in CM23 was £437,500 in 2025. Joint 471st most expensive of 2,235. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026.
- **Population: 44,136** (2021). CM23 had 44,136 usual residents at the census (ONS Census 2021). 332nd most 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: 61%** (2022). About 61% of people in CM23 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: 87.7%** (January 2026). In CM23, 87.7% 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: 51.8679, 0.1683

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=0.1683,51.8679,CM235NQ

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/cm23-5nq.

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/cm23-5nq