The UK Postcode Database

SL4 1BB

a postcode in Windsor and Maidenhead

Introduced in January 1980
SL4 1BB Normal (geographic) postcodes Large user postcodes

The nearby postcodes map only shows currently active postcodes. Postcode markers will cluster if they are close together, which may happen in densly populated built-up areas or where single premises have multiple postcodes.

Streets Associated with SL4 1BB

William Street - 50 properties, USRN 44401705

Victoria Street - 6 properties, USRN 44401634

Goswell Road - 2 properties, USRN 44400639

James Street - 1 property, USRN 44400827

Street names are those nearest to properties in this postcode, they are not necessarily the postal address

Coordinates

Latitude: 51.4808 / 51°28'50"N

Longitude: -0.6107 / 0°36'38"W

UTM Reference: 30U 665907 5706000

OS Easting: 496572

OS Northing: 176674

OS Grid: SU965766

Location Encoding

Mapcode Local: GBR F8L.2FR

Mapcode Global: VHFTG.C1HN

Open Location Code: 9C3XF9JQ+8P

Maidenhead Locator System: IO91ql65

Demographics

Urban/Rural Indicator: C1

  • urban city or town
  • a town or city, surrounded by populated countryside

ONS Population Classification: 3c2

  • Multicultural and Educated Urbanites
  • Diverse Educated Urban Singles
  • Career Progression

Index of Multiple Deprivation (IMD): 24265 / 32844

  • 8th decile
  • less deprived

Demographics are based on the LSOA containing this postcode and not necessarily this postcode alone

Sun and Moon Times for SL4 1BB on Wednesday 1 July 2026

Nautical twilight begins (First light) 02:50
Civil twilight begins (Dawn) 04:02
Sunrise 04:49
Transit (sun is at its highest) 13:06
Sunset 21:22
Civil twilight ends (Dusk) 22:09
Nautical twilight ends (Nightfall) 23:22
Hours of daylight today04:19 to 21:52
Hours of darkness tonight
(lighting-up time)
21:52 to 04:20
Moon Phase Waning Gibbous
Moon Sets 04:15
Moon Rises 21:43

For a full sun and moon calendar for SL4 1BB, go to The Time and Place

Residential Property Sales in SL4 1BB

DateAddressProperty TypeTenurePrice
17 September 2021 Flat 8, Mulberry House, 3, William Street, Windsor SL4 1BB Flat/apartment Leasehold £227,500
18 August 2014 Flat 9, Mulberry House, 3, William Street, Windsor SL4 1BB Flat/apartment Leasehold £300,000
15 August 2014 The Penthouse, 1, William Street, Windsor SL4 1BB Flat/apartment Leasehold £549,950
15 July 2014 Flat 8, Mulberry House, 3, William Street, Windsor SL4 1BB Flat/apartment Leasehold £260,000
4 July 2014 Flat 3, Mulberry House, 3, William Street, Windsor SL4 1BB Flat/apartment Leasehold £272,000
4 July 2014 Flat 4, Mulberry House, 3, William Street, Windsor SL4 1BB Flat/apartment Leasehold £245,000
3 July 2014 Flat 5, Mulberry House, 3, William Street, Windsor SL4 1BB Flat/apartment Leasehold £287,500
18 June 2014 Flat 2, Mulberry House, 3, William Street, Windsor SL4 1BB Flat/apartment Leasehold £293,000
16 June 2014 Flat 11, Mulberry House, 3, William Street, Windsor SL4 1BB Flat/apartment Leasehold £280,000
13 June 2014 Flat 10, Mulberry House, 3, William Street, Windsor SL4 1BB Flat/apartment Leasehold £295,000
5 June 2014 Flat 6, Mulberry House, 3, William Street, Windsor SL4 1BB Flat/apartment Leasehold £300,000
30 May 2014 Flat 12, Mulberry House, 3, William Street, Windsor SL4 1BB Flat/apartment Leasehold £258,000
15 May 2014 Flat 7, Mulberry House, 3, William Street, Windsor SL4 1BB Flat/apartment Leasehold £280,000
22 April 2014 Flat 1, Mulberry House, 3, William Street, Windsor SL4 1BB Flat/apartment Leasehold £278,000
7 April 2014 The Penthouse, Mulberry House, 3, William Street, Windsor SL4 1BB Flat/apartment Leasehold £713,000
22 November 2013 Flat 4, 1 William Street, Windsor SL4 1BB Flat/apartment Leasehold £297,000
18 September 2013 23 William Street, Windsor SL4 1BB Other property type Freehold £5,025,000
18 September 2013 23 William Street, Windsor SL4 1BB Other property type Leasehold £5,025,000
8 August 2012 Flat 1, 1 William Street, Windsor SL4 1BB Flat/apartment Leasehold £250,000
8 August 2012 The Penthouse, 1, William Street, Windsor SL4 1BB Flat/apartment Leasehold £351,000
7 August 2012 Flat 2, 1 William Street, Windsor SL4 1BB Flat/apartment Leasehold £210,000
13 January 2012 Flat 3, 1 William Street, Windsor SL4 1BB Flat/apartment Leasehold £274,950
4 May 2007 23 William Street, Windsor SL4 1BB Flat/apartment Leasehold £250,000
31 January 2003 23 William Street, Windsor SL4 1BB Flat/apartment Leasehold £220,000
23 May 2000 23 William Street, Windsor SL4 1BB Flat/apartment Leasehold £112,000
23 July 1999 25 William Street, Windsor SL4 1BB Semi-detached Leasehold £104,000
3 October 1997 23 William Street, Windsor SL4 1BB Flat/apartment Leasehold £80,000

Key to property sale icons:

First sale of newbuild property. This includes new properties created from existing properties, such as residential conversions of commercial or agricultural property, or subdivision of a larger residential property.
Subsequent sale of existing property.
Standard sale at market value to private individual.
Additional (non-standard) sale. This includes repossessions, buy-to-lets and transfers of property sold to non-private individuals.

Elected Representatives for SL4 1BB

United Kingdom Parliament
Constituency

Windsor

MP

Jack Rankin Conservative

Windsor and Maidenhead Council
Unitary Authority ward (UTW)

Eton & Castle

Councillors

Devon Davies Liberal Democrats

Julian Tisi Liberal Democrats

Mark Wilson Liberal Democrats

Elected representative data is updated approximately monthly, so may not include recent by-elections or vacancies.

Government Statistical Services (GSS) data for SL4 1BB

CodeNameData TypeData ThemeActive SinceData Owner
E00083534 Output Areas Statistical Building Block 1 January 2009 ONS
E01016545 Windsor and Maidenhead 012A Lower layer Super Output Areas Statistical Building Block 1 February 2004 ONS
E02003432 Windsor and Maidenhead 012 Middle layer Super Output Areas Statistical Building Block 1 August 2004 ONS
E05012504 Eton & Castle Electoral Wards/Divisions Administrative/Electoral 2 May 2019 DLUHC
E06000040 Windsor and Maidenhead Unitary Authorities Administrative 1 January 2009 DLUHC
E12000008 South East Regions Administrative 1 January 2009 DLUHC
E14001588 Windsor Westminster Parliamentary Constituencies Electoral 4 July 2024 LGBC
E23000029 Thames Valley Police Force Areas Other 1 January 2009 Home Office
E30000266 Slough and Heathrow Travel to Work Areas Other 31 July 2015 ONS
E33037200 Workplace Zones Census 31 December 2011 ONS
E37000035 Thames Valley Berkshire Local Enterprise Partnerships Other 28 October 2010 BEIS
E38000252 NHS Frimley ICB - D4U1Y Sub Integrated Care Board Locations Health 1 July 2022 ODS
E40000005 South East NHS England Regions Health 1 April 2018 ODS
E43000259 Windsor and Maidenhead, unparished area Non-Civil Parished Areas Census 1 April 2019 ONS
E54000034 NHS Frimley Integrated Care Board Integrated Care Boards Health 1 July 2022 ODS
E56000012 Surrey and Sussex Cancer Alliances Health 1 September 2016 NHS England
E63012122 Windsor Built Up Areas Census 17 April 2024 OS
E65000001 England Non-National Park Area England Non-National Park Area Census 27 February 2023 ONS
E92000001 England Country Administrative 1 January 2009 ONS

All public sector data is licensed under the Open Government Licence v2.0.

The UK Postcode Database is a Good Stuff website.

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