# SL3 9BY: area report for a postcode in Windsor and Maidenhead

SL3 9BY is a postcode in Windsor and Maidenhead.

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 Windsor and Maidenhead. Open the map at SL3 9BY for neighbourhoods and points.

In: [Windsor and Maidenhead](https://openindex.co.uk/windsor-and-maidenhead) › [SL3](https://openindex.co.uk/postcode/sl3) › [SL3 9](https://openindex.co.uk/postcode/sl3-9)

## Around this postcode

- **9 crimes within 500 m**: August, down 25% on July. Windsor and Maidenhead 011B: 70 a year per 1,000 people. (Map point) https://openindex.co.uk/map/street-crime?around=-0.5795,51.4799,SL39BY
- **Datchet, 350 m**: About 4 minutes on foot. (Exact point) https://openindex.co.uk/map/stations?around=-0.5795,51.4799,SL39BY
- **2 schools within 800 m**: Nearest is 360 m away. (Exact point) https://openindex.co.uk/map/schools?around=-0.5795,51.4799,SL39BY
- **22 of 22 properties in SL3 9BY at high risk of flooding**: From rivers or the sea, with flood defences. Flood zones, which ignore defences: in flood zone 3. (Postcode) https://openindex.co.uk/map/flood-risk-by-postcode?around=-0.5795,51.4799,SL39BY
- **England’s least deprived 20%**: This neighbourhood, Windsor and Maidenhead 011B. (Neighbourhood) https://openindex.co.uk/map/deprivation-england?around=-0.5795,51.4799,SL39BY
- **£583,688 average price**: For the whole of Windsor and Maidenhead, August 2026. (Council) https://openindex.co.uk/map/house-prices?around=-0.5795,51.4799,SL39BY
- **1 GP practice within 1 km**: Nearest is 330 m away. (Postcode) https://openindex.co.uk/map/gp-practices?around=-0.5795,51.4799,SL39BY
- **2 supermarkets within 1 km**: Nearest is 590 m away. (Exact point) https://openindex.co.uk/map/supermarkets?around=-0.5795,51.4799,SL39BY
- **Gigabit broadband for every home and business at SL3 9BY**: Superfast for 100%. What can be ordered, January 2026. (Postcode) https://openindex.co.uk/map/broadband-by-postcode?around=-0.5795,51.4799,SL39BY
- **Moderate road and rail noise at SL3 9BY**: Road 61 dB, rail under 40 dB or not modelled (Lden, modelled for 2021) (Postcode) https://openindex.co.uk/map/noise-by-postcode?around=-0.5795,51.4799,SL39BY
- **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=-0.5795,51.4799,SL39BY
- **14.5 µg/m³ nitrogen dioxide**: Modelled yearly average for this 1 km square, 2025. (1 km grid) https://openindex.co.uk/map/nitrogen-dioxide?around=-0.5795,51.4799,SL39BY

## Nearest schools

| School | Phase | Distance | Ofsted | Results |
| --- | --- | --- | --- | --- |
| [Datchet St Mary's CofE Primary School](https://openindex.co.uk/school/datchet-st-marys-cofe-primary-school-e137788) | Primary | 360 m (5 minutes on foot) | School remains Good, February 2024 | 60% met the expected standard at KS2 (2024/25) |
| [Churchmead Church of England (VA) School](https://openindex.co.uk/school/churchmead-church-of-england-va-school-e133580) | Secondary | 670 m (8 minutes on foot) | Graded inspection, November 2024: no overall grade | Attainment 8 of 42.8 (2025/26, provisional) |
| [Eton End School](https://openindex.co.uk/school/eton-end-school-e110161) | Independent | 1.3 km (16 minutes on foot) | Not in Ofsted's state-funded schools file | – |
| [St George's School](https://openindex.co.uk/school/st-georges-school-e110131) | Independent | 1.9 km (24 minutes on foot) | Not in Ofsted's state-funded schools file | – |

## Recent sales nearby

| Month | Price | Home | Distance |
| --- | --- | --- | --- |
| April 2025 | £795,000 | Detached, established, freehold | 90 m |
| September 2024 | £920,000 | Detached, established, freehold | 160 m |
| May 2023 | £810,000 | Detached, established, freehold | 170 m |
| July 2023 | £250,000 | Flat or maisonette, established, leasehold | 190 m |
| June 2025 | £740,000 | Detached, established, freehold | 190 m |
| January 2026 | £755,000 | Detached, established, freehold | 220 m |
| March 2023 | £700,000 | Detached, established, freehold | 250 m |
| May 2025 | £875,000 | Detached, established, freehold | 250 m |

## Within 1 km

- Stations: Datchet (360 m, 4 minutes on foot)
- GP practices: DATCHET HEALTH CENTRE (330 m)
- Pharmacies: DATCHET VILLAGE PHARMACY (480 m)
- Dental practices: HORTON ROAD (DENTAL SURGERY) (470 m)
- Supermarkets: Spar - Datchet (590 m, Spar); Tesco Datchet Express (720 m, Tesco)

## Key figures

- **Average house price: £583,688** (August 2026). Windsor and Maidenhead’s average house price was £583,688 in August 2026 (HM Land Registry). Down 0.2% in a year. Source: UK House Price Index, August 2026. Published 21 October 2026.
- **Median full-time pay: £47,387** (2025). Full-time workers living in Windsor and Maidenhead earned a median of £47,387 in 2025 (ONS earnings survey). 27th highest paid of 348. Source: Annual Survey of Hours and Earnings, 2025. Published 23 October 2025.
- **House price to pay: 12.3×** (2025). A home in Windsor and Maidenhead costs 12.3 times local full-time pay. Joint 20th least affordable of 348. Source: Worked out by Open Index from the UK House Price Index and the ONS earnings survey. Published 21 October 2026.
- **Deprivation score: 8.9** (2025). Windsor and Maidenhead has a deprivation score of 8.9 in the English Indices of Deprivation 2025 (MHCLG). 12th least deprived of 296. Source: English Indices of Deprivation 2025, 2025. Published 30 October 2025.

## Windsor and Maidenhead 011B (Neighbourhood)

- **Deprivation score: 7.0** (2025). Windsor and Maidenhead 011B has a deprivation score of 7.0 in the English Indices of Deprivation 2025 (MHCLG). Joint 5,060th least deprived of 33,755. Source: English Indices of Deprivation 2025, 2025. Published 30 October 2025.
- **Median sale price: £725,000** (2025). The median price paid for a home in Windsor and Maidenhead 011B was £725,000 in 2025. Joint 1,349th most expensive of 31,750. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026.
- **Population: 1,677** (2021). Windsor and Maidenhead 011B had 1,677 usual residents at the census (ONS Census 2021). Joint 14,501st 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: 89.6%** (January 2026). In Windsor and Maidenhead 011B, 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.

## SL3 (Postcode district)

- **Median sale price: £453,000** (2025). The median price paid for a home in SL3 was £453,000 in 2025. Joint 407th most expensive of 2,235. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026.
- **Population: 50,366** (2021). SL3 had 50,366 usual residents at the census (ONS Census 2021). 202nd 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: 4%** (2022). About 4% of people in SL3 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: 91.9%** (January 2026). In SL3, 91.9% 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: [Windsor and Maidenhead](https://openindex.co.uk/windsor-and-maidenhead)
- Centre: 51.4799, -0.5795

Council: [Windsor and Maidenhead](https://openindex.co.uk/windsor-and-maidenhead) (Unitary authority, 100%).

## Your MP

- [Windsor](https://openindex.co.uk/constituency/windsor): Jack Rankin (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), August 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=-0.5795,51.4799,SL39BY

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/sl3-9by.

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 2026.10.9. The HTML page: https://openindex.co.uk/postcode/sl3-9by