# TW18 1SZ: area report for a postcode in Spelthorne

TW18 1SZ is a postcode in Spelthorne.

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 Spelthorne. Open the map at TW18 1SZ for neighbourhoods and points.

In: [Spelthorne](https://openindex.co.uk/spelthorne) › [TW18](https://openindex.co.uk/postcode/tw18) › [TW18 1](https://openindex.co.uk/postcode/tw18-1)

## Around this postcode

- **5 crimes within 500 m**: August, up 150% on July. Spelthorne 012A: 87 a year per 1,000 people. (Map point) https://openindex.co.uk/map/street-crime?around=-0.4887,51.4031,TW181SZ
- **Chertsey, 2.3 km**: About 29 minutes on foot. (Exact point) https://openindex.co.uk/map/stations?around=-0.4887,51.4031,TW181SZ
- **No schools within 800 m**: Nearest is 810 m away. (Exact point) https://openindex.co.uk/map/schools?around=-0.4887,51.4031,TW181SZ
- **No property in TW18 1SZ 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=-0.4887,51.4031,TW181SZ
- **England’s most deprived 50%**: This neighbourhood, Spelthorne 012A. (Neighbourhood) https://openindex.co.uk/map/deprivation-england?around=-0.4887,51.4031,TW181SZ
- **£439,609 average price**: For the whole of Spelthorne, July 2026. (Council) https://openindex.co.uk/map/house-prices?around=-0.4887,51.4031,TW181SZ
- **No GP practices within 1 km**: Nearest is 1.8 km away. (Postcode) https://openindex.co.uk/map/gp-practices?around=-0.4887,51.4031,TW181SZ
- **No supermarkets within 1 km**: Nearest is 1.7 km away. (Exact point) https://openindex.co.uk/map/supermarkets?around=-0.4887,51.4031,TW181SZ
- **87.5% can get gigabit broadband at TW18 1SZ**: Superfast for 87.5%. What can be ordered, January 2026. (Postcode) https://openindex.co.uk/map/broadband-by-postcode?around=-0.4887,51.4031,TW181SZ
- **Low road and rail noise at TW18 1SZ**: Road 45 dB, rail under 40 dB or not modelled (Lden, modelled for 2021) (Postcode) https://openindex.co.uk/map/noise-by-postcode?around=-0.4887,51.4031,TW181SZ
- **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=-0.4887,51.4031,TW181SZ
- **14.7 µg/m³ nitrogen dioxide**: Modelled yearly average for this 1 km square, 2025. (1 km grid) https://openindex.co.uk/map/nitrogen-dioxide?around=-0.4887,51.4031,TW181SZ

## Nearest schools

| School | Phase | Distance | Ofsted | Results |
| --- | --- | --- | --- | --- |
| [Laleham CofE VA Primary School](https://openindex.co.uk/school/laleham-cofe-va-primary-school-e125229) | Primary | 810 m (10 minutes on foot) | School remains Good (Improving), next inspection graded, October 2023 | 67% met the expected standard at KS2 (2024/25) |
| [Stepgates Community School](https://openindex.co.uk/school/stepgates-community-school-e125122) | Primary | 1.8 km (22 minutes on foot) | Good (overall), June 2023 | 56% met the expected standard at KS2 (2024/25) |
| [Saxon Primary School](https://openindex.co.uk/school/saxon-primary-school-e140250) | Primary | 1.9 km (24 minutes on foot) | Standards maintained, November 2024 | 66% met the expected standard at KS2 (2024/25) |
| [St Anne's Catholic Primary School](https://openindex.co.uk/school/st-annes-catholic-primary-school-e143365) | Primary | 1.9 km (24 minutes on foot) | Good (overall), March 2024 | 73% met the expected standard at KS2 (2024/25) |
| [Littleton CofE Infant School](https://openindex.co.uk/school/littleton-cofe-infant-school-e125231) | Primary | 2 km (25 minutes on foot) | School remains Good, July 2023 | – |

## Recent sales nearby

| Month | Price | Home | Distance |
| --- | --- | --- | --- |
| May 2023 | £230,000 | Flat or maisonette, established, leasehold | 10 m |
| May 2025 | £425,000 | Flat or maisonette, established, leasehold | 20 m |
| May 2024 | £590,000 | Flat or maisonette, established, freehold | 50 m |
| April 2023 | £370,000 | Flat or maisonette, established, leasehold | 60 m |
| May 2025 | £500,000 | Detached, established, freehold | 220 m |
| May 2025 | £667,500 | Detached, established, freehold | 440 m |
| September 2025 | £900,000 | Detached, established, freehold | 450 m |
| August 2025 | £935,000 | Detached, established, freehold | 460 m |

## Within 1 km

## Key figures

- **Average house price: £439,609** (July 2026). Spelthorne’s average house price was £439,609 in July 2026 (HM Land Registry). Down 2.9% in a year. Source: UK House Price Index, July 2026. Published 16 September 2026.
- **Median full-time pay: £44,265** (2025). Full-time workers living in Spelthorne earned a median of £44,265 in 2025 (ONS earnings survey). 61st highest paid of 348. Source: Annual Survey of Hours and Earnings, 2025. Published 23 October 2025.
- **House price to pay: 9.9×** (2025). A home in Spelthorne costs 9.9 times local full-time pay. Joint 56th 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: 14.9** (2025). Spelthorne has a deprivation score of 14.9 in the English Indices of Deprivation 2025 (MHCLG). Joint 94th least deprived of 296. Source: English Indices of Deprivation 2025, 2025. Published 30 October 2025.

## Spelthorne 012A (Neighbourhood)

- **Deprivation score: 19.6** (2025). Spelthorne 012A has a deprivation score of 19.6 in the English Indices of Deprivation 2025 (MHCLG). Joint 14,983rd most deprived of 33,755. Source: English Indices of Deprivation 2025, 2025. Published 30 October 2025.
- **Median sale price: £608,250** (2025). The median price paid for a home in Spelthorne 012A was £608,250 in 2025. 2,558th most expensive of 31,750. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026.
- **Population: 1,506** (2021). Spelthorne 012A had 1,506 usual residents at the census (ONS Census 2021). Joint 23,210th 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 Spelthorne 012A, 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.

## TW18 (Postcode district)

- **Median sale price: £450,000** (2025). The median price paid for a home in TW18 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: 27,495** (2021). TW18 had 27,495 usual residents at the census (ONS Census 2021). 1,055th 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: 0%** (2022). About 0% of people in TW18 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: 89.6%** (January 2026). In TW18, 89.6% 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: [Spelthorne](https://openindex.co.uk/spelthorne)
- Centre: 51.4031, -0.4887

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

## Your MP

- [Spelthorne](https://openindex.co.uk/constituency/spelthorne): Lincoln Jopp (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

- [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=-0.4887,51.4031,TW181SZ

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/tw18-1sz.

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/tw18-1sz