SL3 9BA

a postcode in Windsor and Maidenhead

Introduced in January 1980

SL3 9BA	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 SL3 9BA

Castle Avenue - 25 properties, USRN 44400289

Agars Place - 1 property, USRN 44400012

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

Coordinates

Latitude: 51.4918 / 51°29'30"N

Longitude: -0.5856 / 0°35'8"W

UTM Reference: 30U 667608 5707284

OS Easting: 498290

OS Northing: 177934

OS Grid: SU982779

Location Encoding

Mapcode Local: GBR F8F.GR5

Mapcode Global: VHFT8.SRSR

Open Location Code: 9C3XFCR7+PQ

Maidenhead Locator System: IO91ql98

Demographics

Urban/Rural Indicator: E1

rural village
a rural village surrounded by populated countryside

ONS Population Classification: 5b2

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

Index of Multiple Deprivation (IMD): 31148 / 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 SL3 9BA on Sunday 5 July 2026

Nautical twilight begins (First light)	02:55
Civil twilight begins (Dawn)	04:06
Sunrise	04:52
Transit (sun is at its highest)	13:06
Sunset	21:21
Civil twilight ends (Dusk)	22:07
Nautical twilight ends (Nightfall)	23:18

Hours of daylight today	04:22 to 21:51
Hours of darkness tonight (lighting-up time)	21:51 to 04:23
Moon Phase	Waning Gibbous
Moon Sets	09:48
Moon Rises	22:41

For a full sun and moon calendar for SL3 9BA, go to The Time and Place

Residential Property Sales in SL3 9BA

Date	Address	Property Type	Tenure	Price
25 September 2023	8 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£650,000
9 December 2022	4 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£625,000
15 September 2022	5 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£625,000
23 May 2022	21 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£1,085,000
2 September 2020	12 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£520,000
7 September 2018	6 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£495,000
8 November 2017	21 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£480,000
18 May 2017	8 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£460,000
26 September 2016	17 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£463,000
18 September 2012	10 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£385,000
2 December 2011	6 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£440,000
20 May 2011	16 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£322,500
23 April 2010	10 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£290,000
12 September 2007	24 Castle Avenue, Datchet, Slough SL3 9BA	Semi-detached	Freehold	£420,000
24 November 2006	5 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£380,000
11 May 2006	12 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£352,000
30 September 2005	24 Castle Avenue, Datchet, Slough SL3 9BA	Semi-detached	Freehold	£350,000
7 July 2004	9 Castle Avenue, Datchet, Slough SL3 9BA	Semi-detached	Freehold	£298,250
14 May 2004	18 Castle Avenue, Datchet, Slough SL3 9BA	Semi-detached	Freehold	£345,000
12 December 2003	19 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£315,000
2 September 2003	7 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£284,950
6 November 2002	12 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£319,950
28 August 2002	15 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£250,000
1 July 2002	3 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£232,000
28 February 2002	2 Castle Avenue, Datchet, Slough SL3 9BA	Semi-detached	Freehold	£277,000
15 February 2002	11 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£245,500
3 August 2001	14 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£245,000
23 July 1999	24 Castle Avenue, Datchet, Slough SL3 9BA	Semi-detached	Freehold	£155,000
24 May 1996	3 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£92,000
3 May 1996	17 Castle Avenue, Datchet, Slough SL3 9BA	Detached	Freehold	£81,000
29 March 1996	24 Castle Avenue, Datchet, Slough SL3 9BA	Semi-detached	Freehold	£115,000

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 SL3 9BA

United Kingdom Parliament

Constituency

Windsor

MP

Jack Rankin Conservative

Windsor and Maidenhead Council

Unitary Authority ward (UTW)

Datchet, Horton & Wraysbury

Councillors

David Buckley Reform UK

Jodie Grove Independent

Ewan Larcombe National Flood Prevention Party

SL3 9BA also falls within the Civil Parish of Datchet, which has its own parish council and parish councillors. These are not shown here.

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

Government Statistical Services (GSS) data for SL3 9BA

Code	Name	Data Type	Data Theme	Active Since	Data Owner
E00083627		Output Areas	Statistical Building Block	1 January 2009	ONS
E01016565	Windsor and Maidenhead 011B	Lower layer Super Output Areas	Statistical Building Block	1 February 2004	ONS
E02003431	Windsor and Maidenhead 011	Middle layer Super Output Areas	Statistical Building Block	1 August 2004	ONS
E04001216	Datchet	Civil Parishes	Administrative	1 January 2009	DLUHC
E05012503	Datchet, Horton & Wraysbury	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
E33040337		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
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
E63012104	Datchet	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

The UK Postcode Database