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LL55 4HD

Llanberis · Gwynedd · Wales

Updated September 2026

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Location overview

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Post town
Caernarfon
Ward
Llanberis
Local authority
Gwynedd
Constituency
Dwyfor Meirionnydd
Postcode district
LL55
Postcode sector
LL55 4

Nearby postcodes

Nearby postcode distances
Postcode Distance
LL55 4HZ 30 m
LL55 4GA 35 m
LL55 4HE 68 m
LL55 4LE 97 m
LL55 4HA 113 m
Complete postcode fields and official codes
Postcode
LL55 4HD
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
LL
Postcode district
LL55
Postcode sector
LL55 4
Latitude
53.119908
Longitude
-4.128070
British National Grid easting
257,683
British National Grid northing
360,196

Statistical and administrative geographies

Country
Wales · W92000004
Region
W99999999
Local authority district
Gwynedd · W06000002
Electoral ward
Llanberis · W05001544
Parish or community
W04000069
Westminster constituency
Dwyfor Meirionnydd · W07000096
Output area
W00000418
Lower layer super output area
Gwynedd 005B · W01000081
Middle layer super output area
Gwynedd 005 · W02000014

Postcode source versions

Explore LL55

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

Property

At this postcode

View all property records
16 recorded sales at this postcode
Address Date Price
Crud Yr Awel, Tydu Road, Llanberis, Caernarfon, LL55 4HD 31 March 2026 £375,000
10, Tydu Road, Llanberis, Caernarfon, LL55 4HD 21 March 2025 £237,500
Plas Tirion, Tydu Road, Llanberis, Caernarfon, LL55 4HD 28 February 2025 £450,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
3
Primary
0
Secondary
0

  1. Ysgol Dolbadarn

    Welsh establishment

    231 m

  2. Ysgol Gwaun Gynfi

    Welsh establishment

    3.1 km

  3. Ysgol Gymuned Penisarwaun

    Welsh establishment

    4.3 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
135
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 47
  • Anti social behaviour 29
  • Shoplifting 11
  • Public order 10
  • Other theft 9

Census 2021

Population and age profile

Postcode residents
45

24 female, 21 male

Postcode households
19
Residents per household
2.4
LL55 4 residents
6,211

Age bands in LL55 4

Wider postcode sector
Age 0 to 14
16.3%

1,056 residents

Age 15 to 24
10.4%

674 residents

Age 25 to 44
23.7%

1,529 residents

Age 45 to 64
27.8%

1,796 residents

Age 65 and over
21.8%

1,410 residents

This postcode contained 0.7% of the sector's usual residents on Census Day. The age profile describes the wider LL55 4 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+
95.5%
Ultrafast, 100 Mbit/s+
27.3%
Ultrafast, 300 Mbit/s+
27.3%
Gigabit-capable
27.3%
Unable to receive decent fixed or FWA broadband
0%
Next Generation Access
100%
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.

NHS ODS

GP practices

1

within 5 km

  • THE SURGERY

    LLANBERIS SURGERY, HIGH STREET, LLANBERIS, CAERNARFON, LL55 4SU

    ODS code W94017

    243 m

Organisation records, not service availability
These are records marked active in NHS England's Organisation Data Service for England and Wales. Branch surgeries, pharmacies, dentists and hospitals are not included. They do not confirm patient registration, services, opening hours, appointments or care quality. Distances are straight-line from the postcode point.

Source acquired on 2026-09-03. Contains information from NHS England, licenced under the current version of the Open Government Licence.

Nearby transport

  • Joe Brown

    BCT · Llanberis

    0.1 miles

  • Joe Brown

    BCT · Llanberis

    0.1 miles

  • Dolbadarn Hotel

    BCT · Llanberis

    0.1 miles

  • Dolbadarn Hotel

    BCT · Llanberis

    0.1 miles

  • HSBC

    BCT · Llanberis

    0.1 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 £306,250 from 4 recorded sales in LL55 4HD. 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

3 open schools are in scope, including 0 primary and 0 secondary schools. Ysgol Dolbadarn is the nearest published school at 231 m.

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

Recorded crime

Published police records

135 published events cover 12 months, averaging 11.25 events per published month. The largest recorded category is Violence and sexual offences with 47 events.

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