# CM23 4QZ: area report for a postcode in East Hertfordshire

CM23 4QZ 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 4QZ for neighbourhoods and points.

In: [East Hertfordshire](https://openindex.co.uk/east-hertfordshire) › [CM23](https://openindex.co.uk/postcode/cm23) › [CM23 4](https://openindex.co.uk/postcode/cm23-4)

## Around this postcode

- **7 crimes within 500 m**: August, up 250% on July. East Hertfordshire 008E: 79 a year per 1,000 people. (Map point) https://openindex.co.uk/map/street-crime?around=0.1357,51.8543,CM234QZ
- **Bishops Stortford, 2.4 km**: About 30 minutes on foot. (Exact point) https://openindex.co.uk/map/stations?around=0.1357,51.8543,CM234QZ
- **1 school within 800 m**: Nearest is 690 m away. (Exact point) https://openindex.co.uk/map/schools?around=0.1357,51.8543,CM234QZ
- **No property in CM23 4QZ 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=0.1357,51.8543,CM234QZ
- **England’s least deprived 10%**: This neighbourhood, East Hertfordshire 008E. (Neighbourhood) https://openindex.co.uk/map/deprivation-england?around=0.1357,51.8543,CM234QZ
- **£457,417 average price**: For the whole of East Hertfordshire, July 2026. (Council) https://openindex.co.uk/map/house-prices?around=0.1357,51.8543,CM234QZ
- **No GP practices within 1 km**: None found within 2 km. (Postcode) https://openindex.co.uk/map/gp-practices?around=0.1357,51.8543,CM234QZ
- **1 supermarket within 1 km**: Nearest is 700 m away. (Exact point) https://openindex.co.uk/map/supermarkets?around=0.1357,51.8543,CM234QZ
- **Gigabit broadband for every home and business at CM23 4QZ**: Superfast for 100%. What can be ordered, January 2026. (Postcode) https://openindex.co.uk/map/broadband-by-postcode?around=0.1357,51.8543,CM234QZ
- **Low road and rail noise at CM23 4QZ**: Road 53 dB, rail under 40 dB or not modelled (Lden, modelled for 2021) (Postcode) https://openindex.co.uk/map/noise-by-postcode?around=0.1357,51.8543,CM234QZ
- **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=0.1357,51.8543,CM234QZ
- **10.5 µg/m³ nitrogen dioxide**: Modelled yearly average for this 1 km square, 2025. (1 km grid) https://openindex.co.uk/map/nitrogen-dioxide?around=0.1357,51.8543,CM234QZ

## Nearest schools

| School | Phase | Distance | Ofsted | Results |
| --- | --- | --- | --- | --- |
| [Manor Fields Primary School](https://openindex.co.uk/school/manor-fields-primary-school-e144960) | Primary | 690 m (9 minutes on foot) | Report card, June 2026: safeguarding met | 80% met the expected standard at KS2 (2024/25) |
| [Richard Whittington Primary School](https://openindex.co.uk/school/richard-whittington-primary-school-e151078) | Primary | 1.2 km (15 minutes on foot) | School remains Good, November 2019 | 80% met the expected standard at KS2 (2024/25) |
| [The Bishop's Stortford High School](https://openindex.co.uk/school/the-bishops-stortford-high-school-e117577) | Secondary | 1.3 km (17 minutes on foot) | School remains Outstanding, May 2023 | Attainment 8 of 58.8 (2025/26, provisional) |
| [Thorley Hill Primary School](https://openindex.co.uk/school/thorley-hill-primary-school-e117230) | Primary | 1.7 km (21 minutes on foot) | School remains Good, March 2024 | 87% met the expected standard at KS2 (2024/25) |
| [Hillmead Primary School](https://openindex.co.uk/school/hillmead-primary-school-e117310) | Primary | 1.7 km (21 minutes on foot) | School remains Good, March 2024 | 77% met the expected standard at KS2 (2024/25) |
| [St Joseph's Catholic Primary School B/S](https://openindex.co.uk/school/st-josephs-catholic-primary-school-b-s-e148491) | Primary | 1.8 km (22 minutes on foot) | Good (overall), December 2022 | 66% met the expected standard at KS2 (2024/25) |

## Recent sales nearby

| Month | Price | Home | Distance |
| --- | --- | --- | --- |
| May 2024 | £1,160,000 | Detached, established, freehold | 50 m |
| July 2024 | £1,122,500 | Detached, established, freehold | 140 m |
| February 2024 | £975,000 | Terraced, established, freehold | 180 m |
| August 2024 | £1,130,000 | Detached, established, freehold | 180 m |
| January 2025 | £910,000 | Semi-detached, established, freehold | 240 m |
| March 2025 | £658,000 | Semi-detached, established, freehold | 240 m |
| December 2025 | £860,000 | Detached, established, freehold | 240 m |
| December 2023 | £900,000 | Detached, established, freehold | 320 m |

## Within 1 km

- Pharmacies: ALLIED PHARMACY THORLEY (780 m)
- Dental practices: THORLEY DENTAL PRACTICE (780 m)
- Supermarkets: Sainsburys Thorley (700 m, Sainsburys)

## 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 008E (Neighbourhood)

- **Deprivation score: 4.4** (2025). East Hertfordshire 008E has a deprivation score of 4.4 in the English Indices of Deprivation 2025 (MHCLG). Joint 2,205th least deprived of 33,755. Source: English Indices of Deprivation 2025, 2025. Published 30 October 2025.
- **Median sale price: £525,000** (2025). The median price paid for a home in East Hertfordshire 008E was £525,000 in 2025. Joint 4,095th most expensive of 31,750. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026.
- **Population: 1,545** (2021). East Hertfordshire 008E had 1,545 usual residents at the census (ONS Census 2021). Joint 21,051st 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: 91.6%** (January 2026). In East Hertfordshire 008E, 91.6% 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: 51.8543, 0.1357

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=0.1357,51.8543,CM234QZ

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/cm23-4qz.

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/cm23-4qz