SL4 4SX postcode in Windsor, Windsor and Maidenhead

SL4 4SX is a postcode in Windsor, in the Eton & Castle ward of Windsor and Maidenhead. It is in the Windsor parliamentary constituency and the Thames Valley police force area, and has been in use since June 1997. It is a large-user postcode, which Royal Mail gives to a single address that gets a lot of mail.

Flooding Not on the at-risk list The Environment Agency lists no home or business here in an area at risk from rivers or the sea Typical price £520,000 Homes sold in SL4 4, last 12 months. ▲ 12.7% on the year before Nearest school St George's School 600 m in a straight line Nearest station Windsor & Eton Central 250 m in a straight line

Where SL4 4SX is, and what is near it

Map of SL4 4SX and what is near it Map of SL4 4SX: its centre point, with the 293 other postcodes in the SL4 4 sector, 4 schools, 2 railway stations, 3 GP practices and 16 bus stops. North is up; the scale bar is 500 m. SL4 4AA: also in SL4 4SL4 4AD: also in SL4 4SL4 4AE: also in SL4 4SL4 4AG: also in SL4 4SL4 4AZ: also in SL4 4SL4 4BA: also in SL4 4SL4 4BG: also in SL4 4SL4 4BJ: also in SL4 4SL4 4BL: also in SL4 4SL4 4BP: also in SL4 4SL4 4BS: also in SL4 4SL4 4BT: also in SL4 4SL4 4BU: also in SL4 4SL4 4BW: also in SL4 4SL4 4BY: also in SL4 4SL4 4BZ: also in SL4 4SL4 4DA: also in SL4 4SL4 4DB: also in SL4 4SL4 4DD: also in SL4 4SL4 4DE: also in SL4 4SL4 4DH: also in SL4 4SL4 4ED: also in SL4 4SL4 4EF: also in SL4 4SL4 4EH: also in SL4 4SL4 4EJ: also in SL4 4SL4 4EL: also in SL4 4SL4 4ER: also in SL4 4SL4 4ES: also in SL4 4SL4 4ET: also in SL4 4SL4 4EU: also in SL4 4SL4 4EW: also in SL4 4SL4 4EX: also in SL4 4SL4 4EY: also in SL4 4SL4 4FN: also in SL4 4SL4 4HA: also in SL4 4SL4 4HH: also in SL4 4SL4 4HJ: also in SL4 4SL4 4PU: also in SL4 4SL4 4RB: also in SL4 4 EtonWindsor SL4 4SX Map of SL4 4SX and what is near it Map of SL4 4SX: its centre point, with the 293 other postcodes in the SL4 4 sector, 4 schools, 2 railway stations, 3 GP practices and 16 bus stops. North is up; the scale bar is 1 km. EtonWindsor SL4 4SX
  • SL4 4SX
  • Other postcodes in SL4 4: press one for its page
  • 4 schools
  • 2 railway stations
  • 3 GP practices
  • 16 bus stops

Points are centre points, not buildings, and nothing drawn is a boundary. Open this area on OpenStreetMap (latitude 51.4812, longitude -0.6104)

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026; schools: Department for Education; stations and bus stops: Department for Transport; GP practices: NHS England; street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

Who looks after SL4 4SX?

ONS places a whole postcode in one council, one ward and one constituency, from a single point. A few postcodes cross a boundary, so an address at the edge can belong to the one next door. Your council tax bill or your poll card settles it for your address.

Council, police force area and constituency: ONS Postcode Directory, August 2026. The MP: UK Parliament, read 14 October 2026.

What broadband can you get at SL4 4SX?

Ofcom gives no broadband figures for SL4 4SX. It reports postcodes with homes or businesses it can match to its data, so a new postcode, or one with no premises on its list, has none.

Check one address, and mobile coverage, on Ofcom's checker Compare broadband at another postcode

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

When are the bins collected at SL4 4SX?

BinDayBuddy reads bin days from councils' own collection systems. It may have the days for SL4 4SX.

Check the bin days for SL4 4SX on BinDayBuddy

Source: BinDayBuddy, built from councils' own collection systems and public data. BinDayBuddy is run by Towpath Digital, which also runs this site. How we use it

Is SL4 4SX at risk of flooding?

From rivers and the sea, long term

The Environment Agency's list of postcodes with a home or business in an area at risk of flooding from rivers or the sea does not include SL4 4SX.

Rivers and the sea only, for the land around buildings, not each building. GOV.UK's checker answers for one address, surface water included.

Source: Environment Agency, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0.

From surface water, across Windsor and Maidenhead

The Environment Agency publishes this for the whole council, not for SL4 4SX: 1,997 properties in Windsor and Maidenhead are at high risk (2.5% of all its properties). All the figures for Windsor and Maidenhead

Source: Environment Agency, Risk of Flooding from Surface Water, properties at risk by local authority, version 2025-09, listed 18 September 2026, Open Government Licence v3.0.

Flood warnings

The centre of SL4 4SX is not in any of the Environment Agency's flood warning or alert areas. Part of the postcode may still be, so check your own address when you sign up.

Sign up for flood warnings, free, on GOV.UK Check flood risk at another postcode

Source: Environment Agency, flood warning areas read 17 October 2026. Open Government Licence v3.0. How we use these

What do homes sell for near SL4 4SX?

Homes in SL4 4 sold for a typical £520,000 in the 12 months to August 2026, across 83 sales, up 12.7% on the 12 months before, HM Land Registry's figures show.

£520,000 typical price, the 12 months to August 2026
£461,250 12 months to August 2025
▲ up 12.7% on the 12 months before
  • Detached £852,000 27 sales
  • Semi-detached £610,000 14 sales
  • Terraced £450,000 28 sales
  • Flat or maisonette £285,000 14 sales

Each bar is that kind's typical price, against the most expensive kind here.

Across the whole SL4 district: a typical £500,000 from 407 sales.

How we work this out: house prices by postcode

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

Homes sold in SL4 4SX

HM Land Registry records no standard sales of homes in SL4 4SX from January 2024 to August 2026. The prices above are for the homes around it.

Sales at market value to a private buyer; the latest months are not complete. Own or live in a home listed here and would rather it were not? Ask us to take it off.

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

What council tax band are homes near SL4 4SX?

The Valuation Office Agency counts about 1,080 homes in the neighbourhood around SL4 4SX. The largest share of them, 22%, are in council tax band C. More were built before 1900 than in any other period (49%). A home's own band is set for that home: check it on GOV.UK.

Council tax bands, and a year's council tax

Council tax bands of the homes around SL4 4SX

Band D in Windsor and Maidenhead for 2026‑27: £1,953. For the bands the homes here are in, a year's council tax runs from £1,302 (band A) to £3,905 (band H); band C, the most common, is £1,736.

BandHomes around hereA year
Band Aabout 10 (1%)£1,302
Band Babout 140 (13%)£1,519
Band Cabout 240 (22%)£1,736
Band Dabout 230 (21%)£1,953
Band Eabout 200 (19%)£2,387
Band Fabout 140 (13%)£2,820
Band Gabout 110 (10%)£3,254
Band Habout 10 (1%)£3,905

When the homes were built

  1. 49% Before 1900
  2. 2% 1900 to 1918
  3. 2% 1919 to 1939
  4. 2% 1945 to 1964
  5. 17% 1965 to 1982
  6. 19% 1983 to 1999
  7. 2% 2000 to 2009
  8. 5% 2010 to 2019
  9. 2% 2020 or later

Averages for Windsor and Maidenhead before discounts, not any one home's bill.

Council tax: Ministry of Housing, Communities and Local Government, Council Tax levels set by local authorities in England 2026 to 2027, Table 10, published 25 March 2026, Open Government Licence v3.0. How we use it

Counts for the neighbourhood the centre of SL4 4SX is in (ONS area E01016544), rounded by the VOA.

Check one home's band on GOV.UK

Source: Valuation Office Agency, Council Tax: stock of properties, at 31 March 2026, Open Government Licence v3.0. How we use it

Which schools are near SL4 4SX?

The nearest open schools to SL4 4SX, in a straight line. Distance is not a catchment.

Primary

Secondary

Find and compare schools in England, on GOV.UK More schools near SL4 4SX, and how we find them

Source: Department for Education, Get Information about Schools, read 17 October 2026, Open Government Licence v3.0. Each school opens its own record there. How we use it

Where is the nearest station to SL4 4SX?

The nearest railway station to the centre of SL4 4SX is Windsor & Eton Central Rail Station, 250 metres away in a straight line.

  • Windsor & Eton Central Rail Station Railway station 250 mWalk
  • Windsor & Eton Riverside Rail Station Railway station 550 mWalk

Straight-line distances from the centre point, not routes. Walk: under 1.2 km. Cycle: 1.2 to 5 km. Drive: further.

16 bus stops within 400 metres, the nearest Charles Street, 137 m away.

More stations near SL4 4SX, and how we find them

Source: Department for Transport, NaPTAN, read 17 October 2026, Open Government Licence v3.0. How we use it

Which GP surgeries are near SL4 4SX?

The nearest GP practices to the centre of SL4 4SX, in a straight line. Each sets the area it takes patients from. In England, each opens its page at the Care Quality Commission, which inspects and rates it.

Find a GP on the NHS website

Source: NHS England, Organisation Data Service (GP practices), read 17 October 2026; ratings: Care Quality Commission, 1 October 2026, Open Government Licence v3.0. How we use it

Where can I charge an electric car near SL4 4SX?

0 within 1 km 1 within 3 km

The nearest charging points to the centre of SL4 4SX, as OpenStreetMap had them on 20 October 2026:

  • A charging point Charging point · No details mapped 2.9 kmCycle

OpenStreetMap is mapped by volunteers. It does not have every charger, and not every one it has gives its speed or plugs. Check a charger's own app before you set off.

See more chargers on Open Charge Map

Source: © OpenStreetMap contributors, Open Database Licence, map as of 20 October 2026. How we use it

Which dentists are near SL4 4SX?

The nearest to the centre of SL4 4SX, in a straight line. Those in England open their page at the Care Quality Commission, which inspects them. It gives few dentists a rating.

Source: Care Quality Commission (directory of 14 October 2026), Open Government Licence v3.0. This uses Care Quality Commission information. How we use it

Which hospitals are nearest to SL4 4SX?

The nearest NHS and private hospitals and clinics in England, in a straight line, with the Care Quality Commission's latest overall rating. One in Wales or Scotland may be nearer.

Not every hospital has an accident and emergency department. In an emergency, call 999.

Source: Care Quality Commission (directory of 14 October 2026, ratings of 1 October 2026), Open Government Licence v3.0. This uses Care Quality Commission information. How we use it

Which care homes are near SL4 4SX?

The nearest care homes to the centre of SL4 4SX, in a straight line, with the Care Quality Commission's latest overall rating.

Source: Care Quality Commission (directory of 14 October 2026, ratings of 1 October 2026), Open Government Licence v3.0. This uses Care Quality Commission information. How we use it

Which pharmacies are near SL4 4SX?

The nearest NHS pharmacies to the centre of SL4 4SX, in a straight line. Those in England show the opening hours they gave the NHS (list published July 2026) and open their page on the NHS website. A few work online or by post only: check before you go.

Hours can change on bank holidays. For urgent help when a pharmacy is closed, call NHS 111.

Source: NHS Business Services Authority (phone numbers: NHS Organisation Data Service), Open Government Licence v3.0. How we use it

Which vets are near SL4 4SX?

The nearest vets to the centre of SL4 4SX on OpenStreetMap, in a straight line. Each opens its entry on the map, with its opening hours and website where they are mapped.

OpenStreetMap may not have every vet. Out of hours, ring your own vet’s number first: the Royal College of Veterinary Surgeons says vets in practice must arrange round-the-clock emergency first aid and pain relief, themselves or through another service.

Source: © OpenStreetMap contributors, Open Database Licence, map as of 20 October 2026. How we use it

Is SL4 4SX in a conservation area?

The centre of SL4 4SX is not in any conservation area, listed building, tree preservation area, green belt or protected landscape that planning.data.gov.uk holds. Not every council has sent all its data, so check with the council before relying on it.

Source: planning.data.gov.uk, asked at the postcode's centre point. Open Government Licence v3.0. How we use it

How much crime is there near SL4 4SX?

Police.uk records 192 crimes and reports of anti-social behaviour within a mile of the centre of SL4 4SX in August 2026, the latest month it has published.

Violence and sexual offences61 reports
Anti-social behaviour23 reports
Shoplifting22 reports
Criminal damage and arson14 reports
Other theft13 reports
Burglary12 reports

Also: public order 11, vehicle crime 11, bicycle theft 10, theft from the person 7, robbery 3, drugs 2, other crime 2, possession of weapons 1.

Police.uk places each report at a nearby point, so this is an area, not a street.

Your local policing team on Police.uk How we work this out: crime by postcode, with the last 12 months

Source: data.police.uk, from its download of 30 September 2026, Open Government Licence v3.0. How we use it

The official record for SL4 4SX

Ward
Eton & Castle
Parish
Not in a parish
Region
South East
Country
England
Built-up area
Windsor
Rural or urban
Urban, nearer to a major town or city
In use since
June 1997

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Where to check what we do not hold

Around SL4 4SX

Go wider

Every postcode in the same sector, district or postcode area.

SL4 4 sector SL4 district SL postcode area Windsor postcodes

Questions about a postcode

Nearby postcodes

The nearest postcodes in use, measured in a straight line between centre points.

SL4 9GR0 mSL4 9GS0 mSL4 9GT0 mSL4 9GZ0 mSL4 9HA0 mSL4 9HD0 m
All of SL4

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode. How we use it

Check another postcode

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