# CM11 1NH: area report for a postcode in Chelmsford

CM11 1NH is a postcode in Chelmsford.

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 Chelmsford. Open the map at CM11 1NH for neighbourhoods and points.

In: [Chelmsford](https://openindex.co.uk/chelmsford) › [CM11](https://openindex.co.uk/postcode/cm11) › [CM11 1](https://openindex.co.uk/postcode/cm11-1)

## Around this postcode

- **Billericay, 3.7 km**: The nearest station, in a straight line. (Exact point) https://openindex.co.uk/map/stations?around=0.4721,51.6316,CM111NH
- **1 school within 800 m**: Nearest is 310 m away. (Exact point) https://openindex.co.uk/map/schools?around=0.4721,51.6316,CM111NH
- **No property in CM11 1NH 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=0.4721,51.6316,CM111NH
- **England’s least deprived 30%**: This neighbourhood, Chelmsford 018D. (Neighbourhood) https://openindex.co.uk/map/deprivation-england?around=0.4721,51.6316,CM111NH
- **£378,080 average price**: For the whole of Chelmsford, July 2026. (Council) https://openindex.co.uk/map/house-prices?around=0.4721,51.6316,CM111NH
- **No GP practices within 1 km**: None found within 2 km. (Postcode) https://openindex.co.uk/map/gp-practices?around=0.4721,51.6316,CM111NH
- **No supermarkets within 1 km**: None found within 2 km. (Exact point) https://openindex.co.uk/map/supermarkets?around=0.4721,51.6316,CM111NH
- **Gigabit broadband for every home and business at CM11 1NH**: Superfast for 100%. What can be ordered, January 2026. (Postcode) https://openindex.co.uk/map/broadband-by-postcode?around=0.4721,51.6316,CM111NH
- **Low road and rail noise at CM11 1NH**: Road 45 dB, rail under 40 dB or not modelled (Lden, modelled for 2021) (Postcode) https://openindex.co.uk/map/noise-by-postcode?around=0.4721,51.6316,CM111NH
- **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=0.4721,51.6316,CM111NH
- **10.0 µg/m³ nitrogen dioxide**: Modelled yearly average for this 1 km square, 2025. (1 km grid) https://openindex.co.uk/map/nitrogen-dioxide?around=0.4721,51.6316,CM111NH

## Nearest schools

| School | Phase | Distance | Ofsted | Results |
| --- | --- | --- | --- | --- |
| [Downham Church of England Voluntary Controlled Primary School](https://openindex.co.uk/school/downham-church-of-england-voluntary-controlled-primary-school-e152141) | Primary | 310 m (4 minutes on foot) | School remains Good, September 2021 | – |
| [Ramsden Hall Academy](https://openindex.co.uk/school/ramsden-hall-academy-e142612) | Special | 1.5 km (19 minutes on foot) | Good (overall), October 2022 | – |

## Recent sales nearby

| Month | Price | Home | Distance |
| --- | --- | --- | --- |
| January 2025 | £1,200,000 | Detached, established, freehold | 10 m |
| March 2025 | £530,000 | Detached, established, freehold | 70 m |
| January 2025 | £520,000 | Semi-detached, established, freehold | 130 m |
| November 2024 | £900,331 | Detached, established, freehold | 240 m |
| November 2025 | £1,195,000 | Detached, established, freehold | 240 m |
| October 2024 | £535,000 | Detached, established, freehold | 290 m |
| July 2026 | £731,000 | Detached, established, freehold | 290 m |
| March 2026 | £515,000 | Detached, established, freehold | 310 m |

## Within 1 km

## Key figures

- **Average house price: £378,080** (July 2026). Chelmsford’s average house price was £378,080 in July 2026 (HM Land Registry). Down 2.3% in a year. Source: UK House Price Index, July 2026. Published 16 September 2026.
- **Median full-time pay: £46,179** (2025). Full-time workers living in Chelmsford earned a median of £46,179 in 2025 (ONS earnings survey). 39th highest paid of 348. Source: Annual Survey of Hours and Earnings, 2025. Published 23 October 2025.
- **House price to pay: 8.2×** (2025). A home in Chelmsford costs 8.2 times local full-time pay. Joint 123rd 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: 13.1** (2025). Chelmsford has a deprivation score of 13.1 in the English Indices of Deprivation 2025 (MHCLG). Joint 65th least deprived of 296. Source: English Indices of Deprivation 2025, 2025. Published 30 October 2025.

## Chelmsford 018D (Neighbourhood)

- **Deprivation score: 9.6** (2025). Chelmsford 018D has a deprivation score of 9.6 in the English Indices of Deprivation 2025 (MHCLG). Joint 8,252nd least deprived of 33,755. Source: English Indices of Deprivation 2025, 2025. Published 30 October 2025.
- **Median sale price: £623,000** (2025). The median price paid for a home in Chelmsford 018D was £623,000 in 2025. Joint 2,367th most expensive of 31,750. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026.
- **Population: 2,332** (2021). Chelmsford 018D had 2,332 usual residents at the census (ONS Census 2021). Joint 1,825th 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: 90.1%** (January 2026). In Chelmsford 018D, 90.1% 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.

## CM11 (Postcode district)

- **Median sale price: £490,000** (2025). The median price paid for a home in CM11 was £490,000 in 2025. Joint 299th most expensive of 2,235. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026.
- **Population: 19,148** (2021). CM11 had 19,148 usual residents at the census (ONS Census 2021). 1,238th 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: 0%** (2022). About 0% of people in CM11 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: 87.6%** (January 2026). In CM11, 87.6% 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.

## About

- Type: Postcode
- Council: [Chelmsford](https://openindex.co.uk/chelmsford)
- Centre: 51.6316, 0.4721

Council: [Chelmsford](https://openindex.co.uk/chelmsford) (District, 100%).

## Your MP

- [Maldon](https://openindex.co.uk/constituency/maldon): Sir John Whittingdale (Conservative), 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

- [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=0.4721,51.6316,CM111NH

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/cm11-1nh.

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. The HTML page: https://openindex.co.uk/postcode/cm11-1nh