LL54 5TW

Y Groeslon · Gwynedd · Wales

Updated September 2026

Compare this postcode

Location overview

Drag to pan. Use + or - to zoom. Open larger map

Post town: Caernarfon
Ward: Y Groeslon
Local authority: Gwynedd
Constituency: Dwyfor Meirionnydd
Postcode district: LL54
Postcode sector: LL54 5

Nearby postcodes

Nearby postcode distances
Postcode	Distance
LL54 5TA	1.5 km
LL54 5TP	1.6 km
LL54 5TR	1.6 km
LL54 5TJ	1.6 km
LL54 5TQ	1.6 km

Complete postcode fields and official codes

Postcode: LL54 5TW
Status: Current
Introduced: 1 January 1980
Terminated: Not published
Postcode area: LL
Postcode district: LL54
Postcode sector: LL54 5
Latitude: 53.086775
Longitude: -4.336176
British National Grid easting: 243,638
British National Grid northing: 356,945

Statistical and administrative geographies

Country: Wales · W92000004
Region: W99999999
Local authority district: Gwynedd · W06000002
Electoral ward: Y Groeslon · W05001569
Parish or community: W04000072
Westminster constituency: Dwyfor Meirionnydd · W07000096
Output area: W00000377
Lower layer super output area: Gwynedd 008A · W01000073
Middle layer super output area: Gwynedd 008 · W02000017

Postcode source versions

Ordnance Survey: Code-Point Open Version 2026-08 · Current postcode units in Great Britain · OGL-3.0
Office for National Statistics: ONS Postcode Directory Version 2026-08 · United Kingdom; Northern Ireland excluded pending rights review; Crown Dependencies outside product scope · OGL-3.0 with third-party rights
Ordnance Survey: Boundary-Line Version 2026-05 · Local-authority boundaries in Great Britain · OS OpenData Licence

Explore LL54

Use the wider postcode district to compare the same evidence across more locations.

Property

At this postcode

View all property records

78 recorded sales at this postcode

Address	Date	Price
Parc Llanfair, 2, Dinas Dinlle, Caernarfon, LL54 5TW	19 December 2025	£113,000
The Curlews, Dinas Dinlle, Caernarfon, LL54 5TW	12 September 2025	£413,000
The Spinney, Dinas Dinlle, Caernarfon, LL54 5TW	6 August 2024	£405,000

Schools

Within 3.1 miles of this postcode

View all nearby schools

Open schools: 1
Primary: 0
Secondary: 0

Ysgol Gynradd Llandwrog

Welsh establishment
1.8 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records

Published events: 17
Months covered: 12
Latest month: June 2026

Most recorded categories in this period

Anti social behaviour 4
Criminal damage and arson 4
Violence and sexual offences 4
Other theft 2
Public order 1

Census 2021

Population and age profile

Postcode residents: 78
Postcode households: 36
Residents per household: 2.2
LL54 5 residents: 2,930

Age bands in LL54 5

Wider postcode sector

Age 0 to 14: 15.3%
Age 15 to 24: 9.3%
Age 25 to 44: 18.6%
Age 45 to 64: 31.8%
Age 65 and over: 25%

This postcode contained 2.7% of the sector's usual residents on Census Day. The age profile describes the wider LL54 5 sector, not people in this individual postcode.

How to read these estimates

The standard postcode headcounts and the commissioned age table are separate ONS outputs. Small counts are disclosure-controlled, and totals can differ slightly between tables. Coverage is England and Wales only.

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+: 72.6%
Ultrafast, 100 Mbit/s+: 72.6%
Ultrafast, 300 Mbit/s+: 72.6%
Gigabit-capable: 72.6%

Unable to receive decent fixed or FWA broadband: 0%
Next Generation Access: 72.6%
Decent broadband available from fixed wireless: 17.7%

Coverage is a modelled postcode-level snapshot, not a speed test or a guarantee for a named property. Check availability with providers before making a decision. Ofcom does not publish postcode-level full-fibre coverage in this release for commercial-confidentiality reasons.

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

Nearby transport

Dinas Dinlle Caravan Park

BCT · Dinas Dinlle
0.1 miles
Dinas Dinlle Caravan Park

BCT · Dinas Dinlle
0.1 miles
Dinas Dinlle Beach

BCT · Dinas Dinlle
0.2 miles
Dinas Dinlle Beach

BCT · Dinas Dinlle
0.2 miles
Plas Tan Dinas

BCT · Dinas Dinlle
0.4 miles

Evidence in context

A factual reading of the data in this report's scope. It is not a location score or a recommendation.

Property market

Recorded sales

The five-year median is £240,000 from 11 recorded sales in LL54 5TW. This is a recorded-sale statistic, not a current valuation.

The latest UK House Price Index average for Gwynedd is £206,665 in June 2026, up 5.7% year on year.

Schools

Published establishments

1 open schools are in scope, including 0 primary and 0 secondary schools. Ysgol Gynradd Llandwrog is the nearest published school at 1.1 miles.

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

Recorded crime

Published police records

17 published events cover 12 months, averaging 1.417 events per published month. The largest recorded category is Anti social behaviour with 4 events.

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