LL39 Postcode Data
Property data for the LL39 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 LL39 is £153,822 (median £135,000), based on 97 HM Land Registry transactions.
Headline pricing in LL39 is below the UK national average (England & Wales average ~£290k as of 2025). Stock is dominated by terraced properties (53 of the last 97 sales).
Avg sale price
£153,822
97 sales
Median price
£135,000
Crime incidents
n/a
Avg EPC score
n/a
74 certs
Recent sold prices
Latest 30 property sales in the LL39 area, sourced from HM Land Registry Price Paid Data.
terraced
£148,046
53 sales
detached
£177,406
24 sales
semi-detached
£113,143
14 sales
| Date | Address | Type | Price |
|---|---|---|---|
| Oct 2025 | 6, ARTHOG TERRACE, ARTHOG | terraced | £175,000 |
| Aug 2025 | 2, ARTHOG TERRACE, ARTHOG | terraced | £150,000 |
| Apr 2025 | 9, ST MARYS TERRACE, ARTHOG | semi-detached | £170,000 |
| Mar 2025 | 11, ARTHOG TERRACE, ARTHOG | terraced | £130,000 |
| Nov 2024 | AFON MORFA, ARTHOG | other | £500,000 |
| Sept 2024 | 3, MAWDDACH CRESCENT, ARTHOG | terraced | £485,000 |
| Sept 2024 | TY BACH TWT, ARTHOG | terraced | £219,950 |
| Aug 2024 | 5, ARTHOG TERRACE, ARTHOG | terraced | £141,500 |
| Mar 2024 | CARLEG, 8, ST MARYS TERRACE, ARTHOG | terraced | £260,000 |
| Jul 2023 | BRON MEIRION, ARTHOG | detached | £285,000 |
| Apr 2023 | TY CAPEL, ARTHOG | semi-detached | £230,000 |
| Mar 2023 | ABERDWYAFON, ARTHOG | detached | £435,000 |
| Feb 2023 | 7, ST MARYS TERRACE, ARTHOG | terraced | £245,000 |
| Jul 2022 | 5, GLASFRYN TERRACE, ARTHOG | terraced | £120,000 |
| Nov 2021 | 4, GLASFRYN TERRACE, ARTHOG | terraced | £165,000 |
Energy performance
Aggregate EPC stats from 74 recently-certified properties in the LL39 area.
Sample size
74
Rating distribution
A
0
B
2
C
5
D
15
E
19
F
19
G
14
Area information
- Local authority
- Gwynedd
- Country
- Wales
- Wards
- Arthog a Llangelynnin
- Constituency
- Dwyfor Meirionnydd
- Latitude
- 52.7100
- Longitude
- -4.0122
More for LL39
Typical property
What the typical LL39 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 LL39
HM Land Registry from 1995
Corporate freeholders
Companies registered in LL39
Live Companies House data + PSCs
EPC checker
Look up any LL39 address
Energy ratings + improvement options
Crime checker
Local breakdown for LL39
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, covering a 1-mile radius from the LL39 postcode centroid for the most recent month available (typically 2 months behind). For Scottish postcodes we use Police Scotland recorded-crime counts published by the Scottish Government (2024-25), reported by council area.
EPC: opendatacommunities.org, the official Energy Performance Certificate register for England and Wales. Aggregate stats from up to 30 most recent certificates in the postcode. For Scottish postcodes we use Scottish EPC Register lodgements, aggregated to a council-level band distribution (Q2 2025 to Q1 2026). For Northern Ireland we use the NISRA Census 2021 EPC-band classification of every household, aggregated by council (Census 2021).
Area data: postcodes.io, open data from the Office for National Statistics.