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SA15 4SB

Trimsaran · Carmarthenshire · Wales

Updated September 2026

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Location overview

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Post town
Llanelli
Ward
Trimsaran
Local authority
Carmarthenshire
Constituency
Llanelli
Postcode district
SA15
Postcode sector
SA15 4

Nearby postcodes

Nearby postcode distances
Postcode Distance
SA15 4SE 72 m
SA15 4RS 73 m
SA15 4RR 125 m
SA15 4RN 146 m
SA15 4RH 225 m
Complete postcode fields and official codes
Postcode
SA15 4SB
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
SA
Postcode district
SA15
Postcode sector
SA15 4
Latitude
51.712168
Longitude
-4.226021
British National Grid easting
246,307
British National Grid northing
203,838

Statistical and administrative geographies

Country
Wales · W92000004
Region
W99999999
Local authority district
Carmarthenshire · W06000010
Electoral ward
Trimsaran · W05001224
Parish or community
W04001089
Westminster constituency
Llanelli · W07000098
Output area
W00003910
Lower layer super output area
Carmarthenshire 018D · W01000730
Middle layer super output area
Carmarthenshire 018 · W02000159

Postcode source versions

Explore SA15

Property

View all property records
9 recorded sales at this postcode
Address Date Price
2, Parc Heol Ddu, Pen Y Mynydd, Llanelli, SA15 4SB 12 December 2025 £165,000
5, Parc Heol Ddu, Pen Y Mynydd, Llanelli, SA15 4SB 3 September 2019 £124,000
Bryn Y Blodau, Parc Heol Ddu, Pen Y Mynydd, Llanelli, SA15 4SB 25 October 2018 £295,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
12
Primary
0
Secondary
0

  1. Trimsaran Community School

    Welsh establishment

    1.2 km

  2. Carway C.P. School

    Welsh establishment

    2.8 km

  3. Pwll C.P. Mixed School

    Welsh establishment

    3.0 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
145
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 72
  • Criminal damage and arson 23
  • Anti social behaviour 11
  • Drugs 10
  • Other theft 7

Census 2021

Population and age profile

Postcode residents
20

11 female, 9 male

Postcode households
11
Residents per household
1.8
SA15 4 residents
5,618

Age bands in SA15 4

Wider postcode sector
Age 0 to 14
16%

883 residents

Age 15 to 24
9.7%

536 residents

Age 25 to 44
23%

1,274 residents

Age 45 to 64
26.6%

1,473 residents

Age 65 and over
24.6%

1,362 residents

This postcode contained 0.4% of the sector's usual residents on Census Day. The age profile describes the wider SA15 4 sector, not people in this individual postcode.

Small counts are adjusted for privacy, so totals can differ slightly between Census tables.

Census Day: 21 March 2021. Sources: ONS/Nomis P001-P004 and ONS CT21_0228. Age table version 2024-04-08.

Fixed broadband coverage

Ofcom's predicted availability across all residential and commercial premises in this postcode in January 2026.

Superfast, 30 Mbit/s+
100%
Ultrafast, 100 Mbit/s+
0%
Ultrafast, 300 Mbit/s+
0%
Gigabit-capable
0%
Unable to receive decent fixed or FWA broadband
0%
Next Generation Access
100%
Decent broadband available from fixed wireless
0%

Predicted coverage, not measured speeds. Check availability for your address with a provider. Postcode-level full-fibre figures are not published in this release.

Source: Ofcom Connected Nations Spring 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.

GP practices

2

within 5 km

  • MEDDYGFA TYWYN BACH

    PARC Y MINOS STREET, BURRY PORT, SA16 0BN

    ODS code W92031

    3.4 km

  • MEDDYGFA'R SARN

    12 HEOL Y MEINCIAU, PONTYATES, LLANELLI, SA15 5TR

    ODS code W92013

    4.6 km

Main GP practices only; branch surgeries are excluded. Distances are straight-line. Contact the practice to check registration, services, opening hours and appointments.

Source acquired on 2026-09-05. Contains information from NHS England, licenced under the current version of the Open Government Licence.

Nearby transport

  • Dythel Park

    BCT · Heol-ddu

    0.1 miles

  • Dythel Park

    BCT · Heol-ddu

    0.1 miles

  • Trilwm

    BCT · Trimsaran

    0.5 miles

  • Trilwm

    BCT · Trimsaran

    0.6 miles

  • Waunyclun

    BCT · Waun y Clyn

    0.7 miles

Evidence in context

Property market

The five-year median is £165,000 from 1 recorded sale in SA15 4SB. This is a recorded-sale statistic, not a current valuation.

The latest UK House Price Index average for Carmarthenshire is £197,547 in June 2026, up 6.1% year on year.

Schools

12 open schools are in scope, including 0 primary and 0 secondary schools. Trimsaran Community School is the nearest published school at 0.7 miles.

Counts describe active establishment records. They do not assess admissions, catchments or quality.

Recorded crime

145 published events cover 12 months, averaging 12.083 events per published month. The largest recorded category is Violence and sexual offences with 72 events.

The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.