LL55 3BT

Penisa'r-waun · Gwynedd · Wales

Updated September 2026

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Location overview

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Post town
Caernarfon
Local authority
Gwynedd
Constituency
Dwyfor Meirionnydd
Postcode district
LL55
Postcode sector
LL55 3

Nearby postcodes

Nearby postcode distances
Postcode Distance
LL55 3BU 84 m
LL55 3BS 195 m
LL55 3BP 219 m
LL55 3BW 307 m
LL55 3PN 361 m
Complete postcode fields and official codes
Postcode
LL55 3BT
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
LL
Postcode district
LL55
Postcode sector
LL55 3
Latitude
53.155085
Longitude
-4.161249
British National Grid easting
255,581
British National Grid northing
364,175

Statistical and administrative geographies

Country
Wales · W92000004
Region
W99999999
Local authority district
Gwynedd · W06000002
Parish or community
W04000070
Westminster constituency
Dwyfor Meirionnydd · W07000096
Output area
W00000507
Lower layer super output area
Gwynedd 005C · W01000099
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
3 recorded sales at this postcode
Address Date Price
Caerffynnon, Penisarwaun, Caernarfon, LL55 3BT 21 December 2016 £232,500
Caerffynnon, Penisarwaun, Caernarfon, LL55 3BT 12 April 2012 £170,000
Bod Idris, Penisarwaun, Caernarfon, LL55 3BT 20 June 1996 £34,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
8
Primary
0
Secondary
0
  1. Ysgol Gymuned Penisarwaun

    Welsh establishment

    288 m
  2. Ysgol Brynrefail

    Welsh establishment

    2.1 km
  3. Ysgol Llanrug

    Welsh establishment

    2.2 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
41
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 14
  • Other theft 7
  • Burglary 5
  • Criminal damage and arson 5
  • Public order 4

Census 2021

Population and age profile

Postcode residents
11

5 female, 6 male

Postcode households
5
Residents per household
2.2
LL55 3 residents
2,998

Age bands in LL55 3

Wider postcode sector
Age 0 to 14
16.2%

495 residents

Age 15 to 24
11.6%

355 residents

Age 25 to 44
22.4%

682 residents

Age 45 to 64
30%

914 residents

Age 65 and over
19.8%

602 residents

This postcode contained 0.4% of the sector's usual residents on Census Day. The age profile describes the wider LL55 3 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+
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
100%
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

2

within 5 km

  • FELINHELI&PORTHAETHWY SU

    ROWEN, Y FELINHELI, LL56 4RX

    ODS code W94027

    4.7 km

  • THE SURGERY

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

    ODS code W94017

    4.7 km

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

  • Capel y Waun

    BCT · Penisar Waun

    0.1 miles
  • Capel y Waun

    BCT · Penisar Waun

    0.1 miles
  • Glan-yr-afon

    BCT · Penisar Waun

    0.2 miles
  • Glan-yr-afon

    BCT · Penisar Waun

    0.2 miles
  • Eglwys Santes Helen

    BCT · Penisar Waun

    0.2 miles

Evidence in context

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

Schools

Published establishments

8 open schools are in scope, including 0 primary and 0 secondary schools. Ysgol Gymuned Penisarwaun is the nearest published school at 288 m.

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

Recorded crime

Published police records

41 published events cover 12 months, averaging 3.417 events per published month. The largest recorded category is Violence and sexual offences with 14 events.

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