The UK Postcode Database

SA3 4LJ

a postcode in Swansea

Introduced in January 1980
SA3 4LJ 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 SA3 4LJ

William Street - 16 properties, USRN 39102586

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

Coordinates

Latitude: 51.574 / 51°34'26"N

Longitude: -4.0006 / 4°0'2"W

UTM Reference: 30U 430659 5714131

OS Easting: 261458

OS Northing: 188020

OS Grid: SS614880

Location Encoding

Mapcode Local: GBR GX.FNVZ

Mapcode Global: VH4KG.LPXR

Open Location Code: 9C3QHXFX+HQ

Maidenhead Locator System: IO71xn97

Demographics

Urban/Rural Indicator: C1

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

ONS Population Classification: 2a3

  • Suburbanites and Peri-Urbanites
  • Inner Suburbs and Small Town Living
  • Terraced Communities

Index of Multiple Deprivation (IMD): 1719 / 1909

  • 10th decile
  • least deprived

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

Sun and Moon Times for SA3 4LJ on Friday 10 July 2026

Nautical twilight begins (First light) 03:17
Civil twilight begins (Dawn) 04:25
Sunrise 05:10
Transit (sun is at its highest) 13:21
Sunset 21:32
Civil twilight ends (Dusk) 22:17
Nautical twilight ends (Nightfall) 23:25
Hours of daylight today04:40 to 22:02
Hours of darkness tonight
(lighting-up time)
22:02 to 04:41
Moon Phase Waning Crescent
Moon Rises 00:01
Moon sets 17:05

For a full sun and moon calendar for SA3 4LJ, go to The Time and Place

Residential Property Sales in SA3 4LJ

DateAddressProperty TypeTenurePrice
12 April 2024 2 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £70,000
2 July 2021 9 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £290,000
29 June 2021 18 William Street, Mumbles, Swansea SA3 4LJ Detached Freehold £265,000
18 December 2020 11 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £254,500
23 April 2018 5 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £217,000
14 December 2016 18 William Street, Mumbles, Swansea SA3 4LJ Other property type Freehold £270,000
5 February 2016 7 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £215,000
18 January 2016 14 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £215,000
19 October 2015 11 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £204,000
15 May 2015 9 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £205,000
18 February 2011 8 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £190,000
17 December 2010 6 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £210,000
26 August 2010 7 William Street, Mumbles, Swansea SA3 4LJ Semi-detached Freehold £212,000
6 May 2010 13 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £210,000
13 December 2005 13 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £186,000
10 December 2004 7 William Street, Mumbles, Swansea SA3 4LJ Semi-detached Freehold £197,000
7 November 2003 9 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £167,000
14 June 2002 11 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £98,000
7 September 2001 9 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £84,500
14 July 2000 7 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £81,000
9 August 1999 5 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £53,000
9 June 1999 3 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £58,000
19 February 1999 10 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £53,000
24 September 1998 12 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £57,000
31 July 1998 9 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £65,950
11 July 1997 11 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £52,000
28 November 1996 9 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £61,000
17 May 1996 2 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £32,000
13 November 1995 7 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £60,000
27 February 1995 7 William Street, Mumbles, Swansea SA3 4LJ Terraced (including end-of-terrace) Freehold £60,000

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 SA3 4LJ

United Kingdom Parliament
Constituency

Gower

MP

Tonia Antoniazzi Labour

Senedd
Constituency

Gower

Senedd Member

Rebecca Evans Welsh Labour

Region

South Wales West

Senedd Members

Luke Fletcher Plaid Cymru

Tom Giffard Welsh Conservative Party

Altaf Hussain Welsh Conservative Party

Sioned Williams Plaid Cymru

Swansea Council
Unitary Authority electoral division (UTE)

Mumbles

Councillors

Francesca O'Brien Conservative

Angela O'Connor Conservative

Will Thomas Conservative

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

Government Statistical Services (GSS) data for SA3 4LJ

CodeNameData TypeData ThemeActive SinceData Owner
W00004417 Output Areas Statistical Building Block 1 January 2009 ONS
W01000825 Swansea 031C Lower layer Super Output Areas Statistical Building Block 1 February 2004 ONS
W02000198 Swansea 031 Middle layer Super Output Areas Statistical Building Block 1 August 2004 ONS
W04000583 Mumbles Communities Administrative 1 January 2009 WG (LGBC)
W05001056 Mumbles Electoral Wards Administrative/Electoral 5 May 2022 WG (LGBC)
W06000011 Swansea Unitary Authorities Administrative 1 January 2009 WG (LGBC)
W07000097 Gower Westminster Parliamentary Constituencies Electoral 4 July 2024 WG (BC)
W09000018 Gower Senedd Constituencies Electoral 1 January 2009 WG (BC)
W10000009 South Wales West Senedd Electoral Regions Electoral 1 January 2012 WG (BC)
W11000031 Swansea Bay University Health Board Local Health Boards Health 1 April 2019 WG (Health)
W15000003 South Wales Police Force Areas Other 1 January 2009 Home Office
W16000002 South West / Mid Wales Department for Children, Education, Lifelong Learning and Skills, WG Other 1 January 2009 WG (Educ)
W22000032 Swansea Travel to Work Areas Other 31 July 2015 ONS
W31000001 Wales Non-National Park Area Wales Non-National Park Area Other 1 January 2009 WG (Envt)
W35001784 Workplace Zones Census 31 December 2011 ONS
W45001113 Swansea Built Up Areas Census 17 April 2024 OS
W92000004 Wales 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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