LL48 Postcode Data
Property data for the LL48 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 LL48 is £125,237 (median £109,000), based on 30 HM Land Registry transactions. Police UK recorded 12 crimes within a 1-mile radius in 2026-03. The average EPC rating across 116 certified properties is 61/100.
Headline pricing in LL48 is below the UK national average (England & Wales average ~£290k as of 2025). Stock is dominated by terraced properties (18 of the last 30 sales). Energy efficiency here is weaker than average (expect higher running costs and lower mortgage-affordability scores from green lenders).
Avg sale price
£125,237
30 sales
Median price
£109,000
Crime incidents
12
2026-03
Avg EPC score
61/100
116 certs
Recent sold prices
Latest 30 property sales in the LL48 area, sourced from HM Land Registry Price Paid Data.
terraced
£89,083
18 sales
detached
£169,289
9 sales
| Date | Address | Type | Price |
|---|---|---|---|
| Apr 2025 | TEGID HOUSE, 4, CAER FFYNNON TERRACE, PENRHYNDEUDRAETH | terraced | £150,000 |
| Sept 2024 | ADWY DDU SMITHY, CASTLE STREET, PENRHYNDEUDRAETH | detached | £225,000 |
| Jul 2024 | THE RESIDENCE, CAPEL GORFFWYSFA, CASTLE STREET, PENRHYNDEUDRAETH | detached | £295,000 |
| Nov 2023 | L ROWLAND & CO LTD, CASTLE STREET, PENRHYNDEUDRAETH | other | £350,000 |
| Apr 2022 | 1, CASTLE STREET, PENRHYNDEUDRAETH | terraced | £130,000 |
| Jan 2022 | ADWY DDU ISAF, CASTLE STREET, PENRHYNDEUDRAETH | detached | £310,000 |
| Sept 2021 | 2, CASTLE STREET, PENRHYNDEUDRAETH | terraced | £140,000 |
| Mar 2021 | REGENT HOUSE, 2, CAER FFYNNON TERRACE, PENRHYNDEUDRAETH | terraced | £172,500 |
| Jul 2019 | THE RESIDENCE, CAPEL GORFFWYSFA, CASTLE STREET, PENRHYNDEUDRAETH | other | £70,000 |
| Aug 2018 | YR HEN FESTRI, CASTLE STREET, PENRHYNDEUDRAETH | other | £210,000 |
| May 2018 | ADWY DDU SMITHY, CASTLE STREET, PENRHYNDEUDRAETH | detached | £153,000 |
| Dec 2017 | WATERLOO HOUSE, 1, CAER FFYNNON TERRACE, PENRHYNDEUDRAETH | terraced | £160,000 |
| Jan 2017 | ARGOED, 6, CAER FFYNNON TERRACE, PENRHYNDEUDRAETH | terraced | £60,000 |
| Jun 2015 | 6, CASTLE STREET, PENRHYNDEUDRAETH | terraced | £82,000 |
| Feb 2014 | 4, CAER FFYNNON TERRACE, PENRHYNDEUDRAETH | terraced | £100,000 |
Crime in LL48
12 reported crimes within a 1-mile radius of the postcode centroid in 2026-03, from Police UK data.
Anti Social Behaviour
6
Violent Crime
3
Other Theft
1
Public Order
1
Shoplifting
1
Energy performance
Aggregate EPC stats from 116 recently-certified properties in the LL48 area.
Avg current score
61/100
Avg potential
80/100
Avg energy cost
£1,019/yr
Sample size
116
Rating distribution
A
0
B
1
C
30
D
61
E
15
F
8
G
1
Area information
- Local authority
- Gwynedd
- Country
- Wales
- Wards
- Glaslyn, Penrhyndeudraeth
- Constituency
- Dwyfor Meirionnydd
- Latitude
- 52.9360
- Longitude
- -4.0696
More for LL48
Typical property
What the typical LL48 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 LL48
HM Land Registry from 1995
Corporate freeholders
Companies registered in LL48
Live Companies House data + PSCs
EPC checker
Look up any LL48 address
Energy ratings + improvement options
Crime checker
Local breakdown for LL48
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 LL48 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.