# SL4 3JA: area report for a postcode in Windsor and Maidenhead

SL4 3JA 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 SL4 3JA for neighbourhoods and points.

In: [Windsor and Maidenhead](https://openindex.co.uk/windsor-and-maidenhead) › [SL4](https://openindex.co.uk/postcode/sl4) › [SL4 3](https://openindex.co.uk/postcode/sl4-3)

## Around this postcode

- **16 crimes within 500 m**: August, down 36% on July. Windsor and Maidenhead 015C: 43 a year per 1,000 people. (Map point) https://openindex.co.uk/map/street-crime?around=-0.6096,51.4738,SL43JA
- **Windsor and Eton Central, 1.1 km**: About 13 minutes on foot. (Exact point) https://openindex.co.uk/map/stations?around=-0.6096,51.4738,SL43JA
- **5 schools within 800 m**: Nearest is 160 m away. (Exact point) https://openindex.co.uk/map/schools?around=-0.6096,51.4738,SL43JA
- **9 of 9 properties in SL4 3JA at very low risk of flooding**: From rivers or the sea, with flood defences. Flood zones, which ignore defences: in flood zone 2. (Postcode) https://openindex.co.uk/map/flood-risk-by-postcode?around=-0.6096,51.4738,SL43JA
- **England’s least deprived 10%**: This neighbourhood, Windsor and Maidenhead 015C. (Neighbourhood) https://openindex.co.uk/map/deprivation-england?around=-0.6096,51.4738,SL43JA
- **£575,036 average price**: For the whole of Windsor and Maidenhead, July 2026. (Council) https://openindex.co.uk/map/house-prices?around=-0.6096,51.4738,SL43JA
- **3 GP practices within 1 km**: Nearest is 420 m away. (Postcode) https://openindex.co.uk/map/gp-practices?around=-0.6096,51.4738,SL43JA
- **5 supermarkets within 1 km**: Nearest is 850 m away. (Exact point) https://openindex.co.uk/map/supermarkets?around=-0.6096,51.4738,SL43JA
- **Gigabit broadband for every home and business at SL4 3JA**: Superfast for 100%. What can be ordered, January 2026. (Postcode) https://openindex.co.uk/map/broadband-by-postcode?around=-0.6096,51.4738,SL43JA
- **Moderate road and rail noise at SL4 3JA**: Road 62 dB, rail under 40 dB or not modelled (Lden, modelled for 2021) (Postcode) https://openindex.co.uk/map/noise-by-postcode?around=-0.6096,51.4738,SL43JA
- **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=-0.6096,51.4738,SL43JA
- **13.9 µg/m³ nitrogen dioxide**: Modelled yearly average for this 1 km square, 2025. (1 km grid) https://openindex.co.uk/map/nitrogen-dioxide?around=-0.6096,51.4738,SL43JA

## Nearest schools

| School | Phase | Distance | Ofsted | Results |
| --- | --- | --- | --- | --- |
| [The Queen Anne Royal Free CofE Controlled First School](https://openindex.co.uk/school/the-queen-anne-royal-free-cofe-controlled-first-school-e109997) | Primary | 160 m (2 minutes on foot) | Graded inspection, November 2024: no overall grade | – |
| [The King's House School, Windsor](https://openindex.co.uk/school/the-kings-house-school-windsor-e138768) | Independent | 180 m (2 minutes on foot) | Not in Ofsted's state-funded schools file | – |
| [Queensmead House School](https://openindex.co.uk/school/queensmead-house-school-e147663) | Special | 280 m (4 minutes on foot) | No outcome in Ofsted's file | – |
| [Upton House School](https://openindex.co.uk/school/upton-house-school-e110130) | Independent | 330 m (4 minutes on foot) | Not in Ofsted's state-funded schools file | – |
| [Trevelyan Middle School](https://openindex.co.uk/school/trevelyan-middle-school-e143390) | Secondary | 630 m (8 minutes on foot) | Standards maintained, December 2024 | 63% met the expected standard at KS2 (2024/25) |
| [The Lawns Nursery School](https://openindex.co.uk/school/the-lawns-nursery-school-e109758) | Nursery | 1.1 km (14 minutes on foot) | School remains Outstanding, July 2024 | – |
| [Oakfield First School](https://openindex.co.uk/school/oakfield-first-school-e148786) | Primary | 1.1 km (14 minutes on foot) | Standards maintained, January 2025 | – |
| [The Green Room School](https://openindex.co.uk/school/the-green-room-school-e141225) | Special | 1.1 km (14 minutes on foot) | No outcome in Ofsted's file | – |

## Recent sales nearby

| Month | Price | Home | Distance |
| --- | --- | --- | --- |
| June 2023 | £385,000 | Flat or maisonette, established, leasehold | 10 m |
| September 2024 | £415,000 | Flat or maisonette, established, leasehold | 10 m |
| June 2023 | £350,000 | Flat or maisonette, established, leasehold | 60 m |
| July 2026 | £510,000 | Terraced, established, freehold | 70 m |
| March 2025 | £315,000 | Flat or maisonette, established, leasehold | 110 m |
| July 2026 | £365,000 | Flat or maisonette, established, leasehold | 110 m |
| August 2025 | £700,000 | Terraced, established, freehold | 110 m |
| January 2026 | £2,450,000 | Detached, established, freehold | 190 m |

## Within 1 km

- GP practices: LEE HOUSE SURGERY (420 m); SHEET STREET SURGERY (710 m); CLARENCE MEDICAL CENTRE (850 m)
- Pharmacies: WINDSOR PHARMACY (620 m); SUPERDRUG PHARMACY (910 m); BOOTS (910 m)
- Dental practices: DENTAL SURGERY (390 m); WINDSOR DENTAL CENTRE (480 m); COMPLETE DENTAL (500 m); SMILE ROOMS (770 m); DENTAL SURGERY (780 m)
- Supermarkets: Tesco Windsor Peascod (850 m, Tesco); Co-op Windsor (880 m, The Southern Co-operative); M&S Windsor (890 m, Marks and Spencer); Waitrose Windsor (980 m, Waitrose); Morrisons Daily Windsor Springfield (990 m, Morrisons)

## Key figures

- **Average house price: £575,036** (July 2026). Windsor and Maidenhead’s average house price was £575,036 in July 2026 (HM Land Registry). Down 3.9% in a year. Source: UK House Price Index, July 2026. Published 16 September 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: 12.1×** (2025). A home in Windsor and Maidenhead costs 12.1 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 16 September 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 015C (Neighbourhood)

- **Deprivation score: 2.8** (2025). Windsor and Maidenhead 015C has a deprivation score of 2.8 in the English Indices of Deprivation 2025 (MHCLG). Joint 836th least deprived of 33,755. Source: English Indices of Deprivation 2025, 2025. Published 30 October 2025.
- **Median sale price: £505,000** (2025). The median price paid for a home in Windsor and Maidenhead 015C was £505,000 in 2025. Joint 4,609th most expensive of 31,750. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026.
- **Population: 1,964** (2021). Windsor and Maidenhead 015C had 1,964 usual residents at the census (ONS Census 2021). Joint 5,930th 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: 86.9%** (January 2026). In Windsor and Maidenhead 015C, 86.9% 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.

## SL4 (Postcode district)

- **Median sale price: £517,250** (2025). The median price paid for a home in SL4 was £517,250 in 2025. 251st most expensive of 2,235. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026.
- **Population: 45,871** (2021). SL4 had 45,871 usual residents at the census (ONS Census 2021). 289th 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: 23%** (2022). About 23% of people in SL4 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: 83.5%** (January 2026). In SL4, 83.5% 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: 51.4738, -0.6096

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), 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=-0.6096,51.4738,SL43JA

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/sl4-3ja.

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/sl4-3ja