Property market
The five-year median is £254,500 from 3 recorded sales in LL55 4NW. 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.
LL55 4NW
Glaslyn · Gwynedd · Wales
Updated September 2026
Compare this postcodeLocation overview
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- Post town
- Caernarfon
- Ward
- Glaslyn
- Local authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd
- Postcode district
- LL55
- Postcode sector
- LL55 4
Nearby postcodes
Complete postcode fields and official codes
- Postcode
- LL55 4NW
- Status
- Current
- Introduced
- 1 January 1980
- Terminated
- Not published
- Postcode area
- LL
- Postcode district
- LL55
- Postcode sector
- LL55 4
- Latitude
- 53.042544
- Longitude
- -4.033407
- British National Grid easting
- 263,773
- British National Grid northing
- 351,407
Statistical and administrative geographies
- Country
- Wales · W92000004
- Region
- W99999999
- Local authority district
- Gwynedd · W06000002
- Electoral ward
- Glaslyn · W05001535
- Parish or community
- W04000048
- Westminster constituency
- Dwyfor Meirionnydd · W07000096
- Output area
- W00000546
- Lower layer super output area
- Gwynedd 010E · W01000107
- Middle layer super output area
- Gwynedd 010 · W02000019
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 LL55
Property
28 recorded
sales at this postcode
| Address | Date | Price |
|---|---|---|
| Glan Gwynant, Nant Gwynant, Caernarfon, LL55 4NW | 6 January 2025 | £335,000 |
| Bryn Afon, Nant Gwynant, Caernarfon, LL55 4NW | 8 September 2023 | £254,500 |
| Garreg Gam, Nant Gwynant, Caernarfon, LL55 4NW | 17 October 2022 | £159,000 |
Recorded crime
Within 1 mile of this postcode
- Published events
- 11
- Months covered
- 12
- Latest month
- June 2026
Most recorded categories in this period
- Violence and sexual offences 9
- Burglary 1
- Anti social behaviour 1
Census 2021
Population and age profile
- Postcode residents
- 27
- Postcode households
- 14
- Residents per household
- 1.9
- LL55 4 residents
- 6,211
10 female, 17 male
Age bands in LL55 4
Wider postcode sector- Age 0 to 14
- 16.3%
- Age 15 to 24
- 10.4%
- Age 25 to 44
- 23.7%
- Age 45 to 64
- 27.8%
- Age 65 and over
- 21.8%
1,056 residents
674 residents
1,529 residents
1,796 residents
1,410 residents
This postcode contained 0.4% of the sector's usual residents on Census Day. The age profile describes the wider LL55 4 sector, not people in this individual postcode.
Small counts are adjusted for privacy, so totals can differ slightly between Census tables.
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+
- 82.1%
- Ultrafast, 100 Mbit/s+
- 82.1%
- Ultrafast, 300 Mbit/s+
- 82.1%
- Gigabit-capable
- 82.1%
- Unable to receive decent fixed or FWA broadband
- 7.1%
- Next Generation Access
- 82.1%
- Decent broadband available from fixed wireless
- 0%
Predicted coverage, not measured speeds. Check availability for your address with a provider. Postcode-level full-fibre figures are not published in this release.
Source: Ofcom Connected Nations Spring 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.
Nearby transport
- 0.1 miles
Ysgoldy
BCT · Bethania
- 0.1 miles
Ysgoldy
BCT · Bethania
- 0.3 miles
Bryn Gwynant
BCT · Bethania
- 0.3 miles
Bryn Gwynant
BCT · Bethania
- 0.8 miles
Pont Bethania
BCT · Bethania
Evidence in context
Recorded crime
11 published events cover 12 months, averaging 0.917 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.