The UK Postcode Database

SL4 4UP

a postcode in Windsor and Maidenhead

Introduced in January 1980
SL4 4UP 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 4UP

Illingworth - 85 properties, USRN 44400816

Brudenell - 1 property, USRN 44400236

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

Coordinates

Latitude: 51.4715 / 51°28'17"N

Longitude: -0.643 / 0°38'34"W

UTM Reference: 30U 663700 5704889

OS Easting: 494350

OS Northing: 175594

OS Grid: SU943755

Location Encoding

Mapcode Local: GBR F8K.L89

Mapcode Global: VHFTF.S8YT

Open Location Code: 9C3XF9C4+HR

Maidenhead Locator System: IO91ql23

Demographics

Urban/Rural Indicator: C1

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

ONS Population Classification: 5b2

  • Ethnically Diverse Suburb-an Professionals
  • Suburban Professionals
  • Established Multi-Ethnic Suburbs

Index of Multiple Deprivation (IMD): 30771 / 32844

  • 10th decile
  • least deprived

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

Sun and Moon Times for SL4 4UP on Thursday 2 July 2026

Nautical twilight begins (First light) 02:52
Civil twilight begins (Dawn) 04:03
Sunrise 04:50
Transit (sun is at its highest) 13:06
Sunset 21:22
Civil twilight ends (Dusk) 22:09
Nautical twilight ends (Nightfall) 23:21
Hours of daylight today04:20 to 21:52
Hours of darkness tonight
(lighting-up time)
21:52 to 04:21
Moon Phase Waning Gibbous
Moon Sets 05:56
Moon Rises 22:02

For a full sun and moon calendar for SL4 4UP, go to The Time and Place

Residential Property Sales in SL4 4UP

DateAddressProperty TypeTenurePrice
30 June 2023 7 Illingworth, Windsor SL4 4UP Detached Freehold £1,090,000
21 April 2023 32 Illingworth, Windsor SL4 4UP Detached Freehold £1,100,000
5 December 2022 16 Illingworth, Windsor SL4 4UP Detached Freehold £1,060,000
15 July 2021 20 Illingworth, Windsor SL4 4UP Detached Freehold £1,130,000
21 May 2021 40 Illingworth, Windsor SL4 4UP Detached Freehold £900,000
12 March 2021 7 Illingworth, Windsor SL4 4UP Detached Freehold £950,000
22 January 2021 68 Illingworth, Windsor SL4 4UP Detached Freehold £925,000
12 November 2020 19 Illingworth, Windsor SL4 4UP Detached Freehold £1,220,000
2 August 2019 12 Illingworth, Windsor SL4 4UP Detached Freehold £980,000
15 November 2017 8 Illingworth, Windsor SL4 4UP Detached Freehold £1,030,000
16 October 2017 54 Illingworth, Windsor SL4 4UP Detached Freehold £980,000
19 December 2016 74 Illingworth, Windsor SL4 4UP Detached Freehold £975,000
7 October 2016 51 Illingworth, Windsor SL4 4UP Semi-detached Freehold £795,000
19 August 2016 53 Illingworth, Windsor SL4 4UP Detached Freehold £1,185,000
21 March 2016 20 Illingworth, Windsor SL4 4UP Detached Freehold £1,010,000
14 March 2016 19 Illingworth, Windsor SL4 4UP Detached Freehold £1,025,000
16 February 2016 66 Illingworth, Windsor SL4 4UP Detached Freehold £810,000
12 February 2016 62 Illingworth, Windsor SL4 4UP Detached Freehold £875,000
28 January 2016 67 Illingworth, Windsor SL4 4UP Detached Freehold £970,000
23 October 2015 27 Illingworth, Windsor SL4 4UP Detached Freehold £960,000
8 September 2015 13 Illingworth, Windsor SL4 4UP Detached Freehold £1,100,000
27 July 2015 68 Illingworth, Windsor SL4 4UP Detached Freehold £790,000
24 June 2015 14 Illingworth, Windsor SL4 4UP Detached Freehold £840,000
26 May 2015 61 Illingworth, Windsor SL4 4UP Detached Freehold £850,000
22 April 2015 70 Illingworth, Windsor SL4 4UP Detached Freehold £789,950
18 July 2014 37 Illingworth, Windsor SL4 4UP Detached Freehold £1,100,000
30 April 2014 15 Illingworth, Windsor SL4 4UP Detached Freehold £920,000
31 May 2013 71 Illingworth, Windsor SL4 4UP Detached Freehold £775,000
8 February 2013 60 Illingworth, Windsor SL4 4UP Detached Freehold £700,000
8 February 2013 2 Illingworth, Windsor SL4 4UP Detached Freehold £810,000
26 March 2012 2 Illingworth, Windsor SL4 4UP Detached Freehold £700,000
22 December 2011 8 Illingworth, Windsor SL4 4UP Detached Freehold £960,000
31 August 2011 4 Illingworth, Windsor SL4 4UP Detached Freehold £745,000
4 March 2011 77 Illingworth, Windsor SL4 4UP Detached Freehold £935,000
10 December 2010 9 Illingworth, Windsor SL4 4UP Detached Freehold £720,000
8 April 2010 60 Illingworth, Windsor SL4 4UP Detached Freehold £635,000
3 March 2010 19 Illingworth, Windsor SL4 4UP Detached Freehold £900,000
2 October 2008 72 Illingworth, Windsor SL4 4UP Detached Freehold £665,000
31 July 2008 30 Illingworth, Windsor SL4 4UP Detached Freehold £845,000
12 December 2007 67 Illingworth, Windsor SL4 4UP Detached Freehold £685,000
17 September 2007 29 Illingworth, Windsor SL4 4UP Detached Freehold £890,000
3 August 2007 12 Illingworth, Windsor SL4 4UP Detached Freehold £670,000
26 July 2007 77 Illingworth, Windsor SL4 4UP Detached Freehold £679,950
11 July 2007 71 Illingworth, Windsor SL4 4UP Detached Freehold £690,000
25 June 2007 17 Illingworth, Windsor SL4 4UP Detached Freehold £769,125
17 April 2007 14 Illingworth, Windsor SL4 4UP Detached Freehold £680,000
11 December 2006 15 Illingworth, Windsor SL4 4UP Detached Freehold £685,000
4 August 2006 63 Illingworth, Windsor SL4 4UP Detached Freehold £720,000
7 April 2006 4 Illingworth, Windsor SL4 4UP Detached Freehold £655,000
1 July 2005 58 Illingworth, Windsor SL4 4UP Detached Freehold £545,000
14 March 2005 39 Illingworth, Windsor SL4 4UP Detached Freehold £490,000
17 December 2004 19 Illingworth, Windsor SL4 4UP Detached Freehold £700,000
6 December 2004 50 Illingworth, Windsor SL4 4UP Detached Freehold £570,000
20 August 2004 25 Illingworth, Windsor SL4 4UP Detached Freehold £560,000
9 December 2003 26 Illingworth, Windsor SL4 4UP Detached Freehold £535,000
4 December 2003 73 Illingworth, Windsor SL4 4UP Detached Freehold £540,000
1 August 2003 4 Illingworth, Windsor SL4 4UP Detached Freehold £540,000
28 July 2003 64 Illingworth, Windsor SL4 4UP Detached Freehold £540,000
23 May 2003 71 Illingworth, Windsor SL4 4UP Detached Freehold £500,000
20 February 2003 20 Illingworth, Windsor SL4 4UP Detached Freehold £535,000
21 January 2003 3 Illingworth, Windsor SL4 4UP Detached Freehold £565,000
20 November 2002 70 Illingworth, Windsor SL4 4UP Detached Freehold £525,000
2 August 2002 63 Illingworth, Windsor SL4 4UP Detached Freehold £529,000
24 May 2002 28 Illingworth, Windsor SL4 4UP Detached Freehold £430,000
27 June 2001 47 Illingworth, Windsor SL4 4UP Detached Freehold £485,000
15 June 2001 60 Illingworth, Windsor SL4 4UP Detached Freehold £450,000
4 June 2001 48 Illingworth, Windsor SL4 4UP Detached Freehold £475,000
9 April 2001 17 Illingworth, Windsor SL4 4UP Detached Freehold £499,950
30 November 2000 49 Illingworth, Windsor SL4 4UP Detached Freehold £390,000
15 November 2000 27 Illingworth, Windsor SL4 4UP Detached Freehold £548,500
26 June 2000 42 Illingworth, Windsor SL4 4UP Detached Freehold £195,000
13 March 2000 44 Illingworth, Windsor SL4 4UP Detached Freehold £345,000
9 March 2000 30 Illingworth, Windsor SL4 4UP Detached Freehold £372,500
1 February 2000 3 Illingworth, Windsor SL4 4UP Detached Freehold £360,000
16 September 1999 52 Illingworth, Windsor SL4 4UP Detached Freehold £328,000
20 August 1999 34 Illingworth, Windsor SL4 4UP Detached Freehold £299,950
25 June 1999 19 Illingworth, Windsor SL4 4UP Detached Freehold £340,000
10 June 1999 64 Illingworth, Windsor SL4 4UP Detached Freehold £319,000
8 January 1999 56 Illingworth, Windsor SL4 4UP Detached Freehold £325,000
11 December 1998 27 Illingworth, Windsor SL4 4UP Detached Freehold £395,000
30 November 1998 47 Illingworth, Windsor SL4 4UP Detached Freehold £375,000
27 March 1998 32 Illingworth, Windsor SL4 4UP Detached Freehold £313,000
26 March 1998 29 Illingworth, Windsor SL4 4UP Detached Freehold £305,000
30 June 1997 49 Illingworth, Windsor SL4 4UP Detached Freehold £221,500
3 June 1997 61 Illingworth, Windsor SL4 4UP Detached Freehold £237,000
24 March 1997 11 Illingworth, Windsor SL4 4UP Detached Freehold £285,000
13 March 1997 32 Illingworth, Windsor SL4 4UP Detached Freehold £240,000
25 November 1996 17 Illingworth, Windsor SL4 4UP Detached Freehold £245,000
27 September 1996 31 Illingworth, Windsor SL4 4UP Semi-detached Freehold £340,000
24 May 1996 27 Illingworth, Windsor SL4 4UP Detached Freehold £268,000
8 September 1995 55 Illingworth, Windsor SL4 4UP Detached Freehold £192,500
18 June 1995 38 Illingworth, Windsor SL4 4UP Detached Freehold £249,950
1 June 1995 46 Illingworth, Windsor SL4 4UP Detached Freehold £110,050
19 May 1995 69 Illingworth, Windsor SL4 4UP Detached Freehold £217,500
7 February 1995 52 Illingworth, Windsor SL4 4UP Detached Freehold £207,000

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 4UP

United Kingdom Parliament
Constituency

Windsor

MP

Jack Rankin Conservative

Windsor and Maidenhead Council
Unitary Authority ward (UTW)

Clewer & Dedworth East

Councillors

Alison Carpenter the Borough first

Helen Price Independent

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

Government Statistical Services (GSS) data for SL4 4UP

CodeNameData TypeData ThemeActive SinceData Owner
E00083790 Output Areas Statistical Building Block 1 January 2009 ONS
E01016597 Windsor and Maidenhead 015D Lower layer Super Output Areas Statistical Building Block 1 February 2004 ONS
E02003435 Windsor and Maidenhead 015 Middle layer Super Output Areas Statistical Building Block 1 August 2004 ONS
E05012499 Clewer & Dedworth East 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
E33040354 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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