LL54 5AD

Yr Eifl · Gwynedd · Wales

Updated September 2026

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Location overview

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

Nearby postcodes

Nearby postcode distances
Postcode	Distance
LL54 5BD	350 m
LL54 5BA	477 m
LL54 5AZ	505 m
LL54 5AY	566 m
LL54 5AT	576 m

Complete postcode fields and official codes

Postcode: LL54 5AD
Status: Current
Introduced: 1 January 1980
Terminated: Not published
Postcode area: LL
Postcode district: LL54
Postcode sector: LL54 5
Latitude: 52.981097
Longitude: -4.408442
British National Grid easting: 238,404
British National Grid northing: 345,352

Statistical and administrative geographies

Country: Wales · W92000004
Region: W99999999
Local authority district: Gwynedd · W06000002
Electoral ward: Yr Eifl · W05001570
Parish or community: W04000066
Westminster constituency: Dwyfor Meirionnydd · W07000096
Output area: W00000399
Lower layer super output area: Gwynedd 011C · W01000078
Middle layer super output area: Gwynedd 011 · W02000020

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

9 recorded sales at this postcode

Address	Date	Price
3, Bryn Ffynnon Terrace, Llanaelhaearn, Caernarfon, LL54 5AD	24 October 2024	£147,000
1, Bryn Ffynnon Terrace, Llanaelhaearn, Caernarfon, LL54 5AD	30 May 2022	£80,500
4, Bryn Ffynnon Terrace, Llanaelhaearn, Caernarfon, LL54 5AD	28 June 2018	£56,000

Schools

Within 3.1 miles of this postcode

View all nearby schools

Open schools: 2
Primary: 0
Secondary: 0

Ysgol Gynradd Llanaelhaearn

Welsh establishment
685 m
Ysgol Yr Eifl

Welsh establishment
1.8 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records

Published events: 30
Months covered: 12
Latest month: June 2026

Most recorded categories in this period

Violence and sexual offences 9
Anti social behaviour 8
Other theft 5
Criminal damage and arson 4
Burglary 2

Census 2021

Population and age profile

Postcode residents: 25
Postcode households: 11
Residents per household: 2.3
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 0.9% 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+: 85.7%
Ultrafast, 100 Mbit/s+: 85.7%
Ultrafast, 300 Mbit/s+: 85.7%
Gigabit-capable: 85.7%

Unable to receive decent fixed or FWA broadband: 0%
Next Generation Access: 85.7%
Decent broadband available from fixed wireless: 0%

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

Tyddyn Drain

BCT · Llanaelhaearn
0.0 miles
Tyddyn Drain

BCT · Llanaelhaearn
0.0 miles
Llanaelhaearn Clegir

BCT · Llanaelhaearn
0.2 miles
Llanaelhaearn Police Station

BCT · Llanaelhaearn
0.4 miles
Llanaelhaearn Police Station

BCT · Llanaelhaearn
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 £113,750 from 2 recorded sales in LL54 5AD. 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

2 open schools are in scope, including 0 primary and 0 secondary schools. Ysgol Gynradd Llanaelhaearn is the nearest published school at 685 m.

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

Recorded crime

Published police records

30 published events cover 12 months, averaging 2.5 events per published month. The largest recorded category is Violence and sexual offences with 9 events.

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