LL31 Postcode Data
Property data for the LL31 postcode district covering Conwy. 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 LL31 is £135,027 (median £118,000), based on 155 HM Land Registry transactions. Police UK recorded 65 crimes within a 1-mile radius in 2026-05.
Headline pricing in LL31 is below the UK national average (England & Wales average ~£290k as of 2025). Stock is dominated by semi-detached properties (84 of the last 155 sales).
Avg sale price
£135,027
155 sales
Median price
£118,000
Crime incidents
65
2026-05
Avg EPC score
n/a
167 certs
Recent sold prices
Latest 30 property sales in the LL31 area, sourced from HM Land Registry Price Paid Data.
semi-detached
£117,905
84 sales
terraced
£116,345
40 sales
detached
£239,176
25 sales
flat-maisonette
£43,000
4 sales
| Date | Address | Type | Price |
|---|---|---|---|
| Sept 2025 | 30, CLOS BELYN, LLANDUDNO JUNCTION | detached | £362,500 |
| Sept 2025 | 4, AVALLON AVENUE, LLANDUDNO JUNCTION | semi-detached | £165,000 |
| Sept 2025 | 6, QUEENS ROAD, LLANDUDNO JUNCTION | terraced | £164,000 |
| Sept 2025 | 1, RIVER VIEW TERRACE, LLANDUDNO JUNCTION | terraced | £188,000 |
| Sept 2025 | 10, BRYN DERW, LLANDUDNO JUNCTION | semi-detached | £190,000 |
| Jul 2025 | 18, QUEENS ROAD, LLANDUDNO JUNCTION | terraced | £90,000 |
| Jun 2025 | 67, CLOS BELYN, LLANDUDNO JUNCTION | detached | £355,000 |
| Jun 2025 | 6, AVALLON AVENUE, LLANDUDNO JUNCTION | semi-detached | £127,500 |
| Jun 2025 | 26, CLOS BELYN, LLANDUDNO JUNCTION | semi-detached | £280,000 |
| Feb 2025 | 12, TREM YR AFON, LLANDUDNO JUNCTION | terraced | £165,000 |
| Jan 2025 | 53, MAES DERW, LLANDUDNO JUNCTION | semi-detached | £190,000 |
| Dec 2024 | 3, TREM YR AFON, LLANDUDNO JUNCTION | terraced | £170,000 |
| Oct 2024 | 18, MAES DERW, LLANDUDNO JUNCTION | semi-detached | £200,000 |
| Sept 2024 | 13, MAES DERW, LLANDUDNO JUNCTION | semi-detached | £200,000 |
| Nov 2023 | 6, QUEENS ROAD, LLANDUDNO JUNCTION | terraced | £100,000 |
Crime in LL31
65 reported crimes within a 1-mile radius of the postcode centroid in 2026-05, from Police UK data.
Violent Crime
33
Anti Social Behaviour
9
Criminal Damage Arson
7
Shoplifting
6
Public Order
4
Energy performance
Aggregate EPC stats from 167 recently-certified properties in the LL31 area.
Sample size
167
Rating distribution
A
0
B
11
C
75
D
57
E
21
F
2
G
1
Area information
- Local authority
- Conwy
- Country
- Wales
- Wards
- Deganwy, Glyn y Marl, Llansanffraid
- Constituency
- Bangor Aberconwy
- Latitude
- 53.2904
- Longitude
- -3.8102
More for LL31
Typical property
What the typical LL31 property looks like
Area summary, buyer notes, researched facts
Council tax
Conwy 2025/26 rates
All bands, monthly cost, discounts
Sold prices tool
Full transaction history for LL31
HM Land Registry from 1995
Corporate freeholders
Companies registered in LL31
Live Companies House data + PSCs
EPC checker
Look up any LL31 address
Energy ratings + improvement options
Crime checker
Local breakdown for LL31
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 LL31 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.