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LL57 4FL

Arllechwedd · Gwynedd · Wales

Updated September 2026

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Location overview

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Post town
Bangor
Ward
Arllechwedd
Local authority
Gwynedd
Constituency
Bangor Aberconwy
Postcode district
LL57
Postcode sector
LL57 4

Nearby postcodes

Nearby postcode distances
Postcode Distance
LL57 4HN 206 m
LL57 1PZ 217 m
LL57 1HQ 236 m
LL57 1YX 326 m
LL57 1PH 337 m
Complete postcode fields and official codes
Postcode
LL57 4FL
Status
Current
Introduced
1 December 2017
Terminated
Not published
Postcode area
LL
Postcode district
LL57
Postcode sector
LL57 4
Latitude
53.230768
Longitude
-4.109099
British National Grid easting
259,316
British National Grid northing
372,489

Statistical and administrative geographies

Country
Wales · W92000004
Region
W99999999
Local authority district
Gwynedd · W06000002
Electoral ward
Arllechwedd · W05001510
Parish or community
W04000073
Westminster constituency
Bangor Aberconwy · W07000083
Output area
W00000255
Lower layer super output area
Gwynedd 003A · W01000050
Middle layer super output area
Gwynedd 003 · W02000012

Postcode source versions

Explore LL57

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

Property

At this postcode

View all property records
59 recorded sales at this postcode
Address Date Price
50, Plas Y Coed, Bangor, LL57 4FL 15 December 2025 £173,000
11, Plas Y Coed, Bangor, LL57 4FL 1 August 2025 £265,000
37, Plas Y Coed, Bangor, LL57 4FL 29 July 2025 £255,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
16
Primary
0
Secondary
0

  1. Ysgol Glancegin

    Welsh establishment

    767 m

  2. Ysgol Gynradd Hirael

    Welsh establishment

    867 m

  3. Bangor Independent School

    Welsh establishment

    1.2 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
1,448
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 532
  • Anti social behaviour 218
  • Shoplifting 142
  • Public order 138
  • Criminal damage and arson 122

Census 2021

Population and age profile

Postcode residents
87

50 female, 37 male

Postcode households
40
Residents per household
2.2
LL57 4 residents
5,821

Age bands in LL57 4

Wider postcode sector
Age 0 to 14
16.1%

958 residents

Age 15 to 24
14%

833 residents

Age 25 to 44
25.3%

1,504 residents

Age 45 to 64
26.6%

1,583 residents

Age 65 and over
17.9%

1,067 residents

This postcode contained 1.5% of the sector's usual residents on Census Day. The age profile describes the wider LL57 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+
100%
Ultrafast, 100 Mbit/s+
100%
Ultrafast, 300 Mbit/s+
100%
Gigabit-capable
100%
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

5

within 5 km

  • GLANFA

    ORME ROAD, BANGOR, LL57 1AY

    ODS code W94040

    802 m

  • BRON DERW MEDICAL CENTRE

    GLYNNE ROAD, BANGOR, LL57 1AH

    ODS code W94034

    808 m

  • BODNANT SURGERY

    MENAI AVENUE, BANGOR, LL57 2HH

    ODS code W94010

    2.0 km

  • THE HEALTH CENTRE

    BEAUMARIS LIBRARY, BEAUMARIS, LL58 8AL

    ODS code W94009

    3.9 km

  • UPCC AT YSBYTY GWYNEDD

    UPCC AT YSBYTY GWYNEDO, PENRHOSGARNEDD, BANGOR, LL57 2PW

    ODS code W00191

    4.2 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

  • Glan Traeth

    BCT · Bangor

    0.1 miles

  • Glan Traeth

    BCT · Bangor

    0.1 miles

  • Pen y bryn

    BCT · Bangor

    0.2 miles

  • Pen y bryn

    BCT · Bangor

    0.2 miles

  • Maesgeirchen Entrance

    BCT · Maesgeirchen

    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.

Property market

Recorded sales

The five-year median is £212,500 from 16 recorded sales in LL57 4FL. 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

16 open schools are in scope, including 0 primary and 0 secondary schools. Ysgol Glancegin is the nearest published school at 767 m.

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

Recorded crime

Published police records

1,448 published events cover 12 months, averaging 120.667 events per published month. The largest recorded category is Violence and sexual offences with 532 events.

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