LL55 Postcode Data
Property data for the LL55 postcode district covering Gwynedd. Sold prices, crime statistics, energy performance, and demographic insights, all from HM Land Registry, Police UK, and the EPC Register.
Quick answer
The average sale price in LL55 is £124,735 (median £118,000), based on 49 HM Land Registry transactions. Police UK recorded 1 crimes within a 1-mile radius in 2026-03. The average EPC rating across 128 certified properties is 61/100.
Headline pricing in LL55 is below the UK national average (England & Wales average ~£290k as of 2025). Stock is dominated by terraced properties (25 of the last 49 sales). Energy efficiency here is weaker than average (expect higher running costs and lower mortgage-affordability scores from green lenders).
Avg sale price
£124,735
49 sales
Median price
£118,000
Crime incidents
1
2026-03
Avg EPC score
61/100
128 certs
Recent sold prices
Latest 30 property sales in the LL55 area, sourced from HM Land Registry Price Paid Data.
terraced
£89,800
25 sales
semi-detached
£127,954
11 sales
detached
£248,857
7 sales
flat-maisonette
£80,000
1 sales
| Date | Address | Type | Price |
|---|---|---|---|
| May 2025 | 6A, EASTGATE STREET, CAERNARFON | terraced | £55,000 |
| Aug 2024 | 9, BRO RHOS, CAERNARFON | terraced | £180,000 |
| Mar 2024 | FLAT, 40, BRIDGE STREET, CAERNARFON | other | £95,000 |
| Mar 2024 | 38, BRIDGE STREET, CAERNARFON | other | £65,000 |
| Dec 2023 | 44, BRIDGE STREET, CAERNARFON | other | £20,000 |
| Nov 2021 | 4, EASTGATE STREET, CAERNARFON | terraced | £87,500 |
| Oct 2021 | 30, BRO RHOS, CAERNARFON | terraced | £140,000 |
| Jul 2021 | MORFA, CAERNARFON | semi-detached | £211,000 |
| Feb 2020 | 2, TAN Y FFYNNON, CAERNARFON | semi-detached | £167,000 |
| Jan 2019 | LLWYN EITHIN, CAERNARFON | detached | £187,000 |
| Jul 2018 | 16, EASTGATE STREET, CAERNARFON | other | £157,500 |
| May 2018 | CHRIST CHURCH, BANGOR STREET, CAERNARFON | other | £300,000 |
| May 2018 | MORFA, CAERNARFON | semi-detached | £178,500 |
| Dec 2017 | CILCAIN, CAERNARFON | detached | £330,000 |
| Sept 2017 | 26, BRO RHOS, CAERNARFON | terraced | £147,000 |
Crime in LL55
1 reported crimes within a 1-mile radius of the postcode centroid in 2026-03, from Police UK data.
Violent Crime
1
Energy performance
Aggregate EPC stats from 128 recently-certified properties in the LL55 area.
Avg current score
61/100
Avg potential
78/100
Avg energy cost
£1,040/yr
Sample size
128
Rating distribution
A
0
B
0
C
37
D
59
E
25
F
4
G
3
Area information
- Local authority
- Gwynedd
- Country
- Wales
- Wards
- Bethel a'r Felinheli, Cadnant, Canol Tref Caernarfon
- Constituency
- Dwyfor Meirionnydd
- Latitude
- 53.1341
- Longitude
- -4.2039
More for LL55
Typical property
What the typical LL55 property looks like
Area summary, buyer notes, researched facts
Council tax
Gwynedd 2025/26 rates
All bands, monthly cost, discounts
Sold prices tool
Full transaction history for LL55
HM Land Registry from 1995
Corporate freeholders
Companies registered in LL55
Live Companies House data + PSCs
EPC checker
Look up any LL55 address
Energy ratings + improvement options
Crime checker
Local breakdown for LL55
Police UK monthly data
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Get a Property ReportData sources & methodology
Sold prices: HM Land Registry Price Paid Data, the official UK government records updated monthly. Sample uses the 30 most recent registered transactions in the postcode area.
Crime: Police UK street-level crime data. Counts cover a 1-mile radius from the LL55 postcode centroid for the most recent month available (typically 2 months behind).
EPC: opendatacommunities.org, the official UK Energy Performance Certificate register. Aggregate stats from up to 30 most recent certificates in the postcode.
Area data: postcodes.io, open data from the Office for National Statistics.