SY23 4HD

Llanrhystyd · Ceredigion · Wales

Updated September 2026

Compare this postcode

Location overview

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Post town
Aberystwyth
Local authority
Ceredigion
Constituency
Ceredigion Preseli
Postcode district
SY23
Postcode sector
SY23 4

Nearby postcodes

Nearby postcode distances
Postcode Distance
SY23 4HB 643 m
SY23 4SS 740 m
SY23 5AE 796 m
SY23 5AF 943 m
SY23 4HF 1.1 km
Complete postcode fields and official codes
Postcode
SY23 4HD
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
SY
Postcode district
SY23
Postcode sector
SY23 4
Latitude
52.305780
Longitude
-4.066539
British National Grid easting
259,201
British National Grid northing
269,528

Statistical and administrative geographies

Country
Wales · W92000004
Region
W99999999
Local authority district
Ceredigion · W06000008
Parish or community
W04000383
Westminster constituency
Ceredigion Preseli · W07000093
Output area
W00002875
Lower layer super output area
Ceredigion 005C · W01000538
Middle layer super output area
Ceredigion 005 · W02000120

Postcode source versions

Explore SY23

5 recorded sales at this postcode
Address Date Price
Bryn Derw, Llangwyryfon, Aberystwyth, SY23 4HD 26 September 2025 £450,000
Plas Treflys, Llangwyryfon, Aberystwyth, SY23 4HD 18 October 2024 £340,000
Lleifior Fawr, Llangwyryfon, Aberystwyth, SY23 4HD 30 June 2023 £435,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
2
Primary
0
Secondary
0
  1. Ysgol Llangwyryfon

    Welsh establishment

    1.3 km
  2. Ysgol Gynradd Wirfoddol Myfenydd

    Welsh establishment

    5.0 km

Census 2021

Population and age profile

Postcode residents
32

17 female, 15 male

Postcode households
12
Residents per household
2.7
SY23 4 residents
5,417

Age bands in SY23 4

Wider postcode sector
Age 0 to 14
14.5%

711 residents

Age 15 to 24
9.6%

471 residents

Age 25 to 44
18.3%

898 residents

Age 45 to 64
30.9%

1,516 residents

Age 65 and over
26.8%

1,314 residents

This postcode contained 0.6% of the sector's usual residents on Census Day. The age profile describes the wider SY23 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+
13.3%
Ultrafast, 100 Mbit/s+
13.3%
Ultrafast, 300 Mbit/s+
13.3%
Gigabit-capable
13.3%
Unable to receive decent fixed or FWA broadband
0%
Next Generation Access
13.3%
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.

Nearby transport

  • Blaennant Crossroads

    BCT · Llangwyryfon

    0.1 miles
  • Blaennant Crossroads

    BCT · Llangwyryfon

    0.1 miles
  • Esgair Crossroads

    BCT · Llangwyryfon

    0.5 miles
  • Esgair Crossroads

    BCT · Llangwyryfon

    0.5 miles
  • Post Office

    BCT · Llangwyryfon

    0.8 miles

Evidence in context

Property market

The five-year median is £435,000 from 3 recorded sales in SY23 4HD. This is a recorded-sale statistic, not a current valuation.

The latest UK House Price Index average for Ceredigion is £237,176 in June 2026, up 1.6% year on year.

Schools

2 open schools are in scope, including 0 primary and 0 secondary schools. Ysgol Llangwyryfon is the nearest published school at 0.8 miles.

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