LL21 Postcode Data
Property data for the LL21 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 LL21 is £142,417 (median £150,000), based on 71 HM Land Registry transactions.
Headline pricing in LL21 is below the UK national average (England & Wales average ~£290k as of 2025). Stock is dominated by detached properties (24 of the last 71 sales).
Avg sale price
£142,417
71 sales
Median price
£150,000
Crime incidents
n/a
Avg EPC score
n/a
54 certs
Recent sold prices
Latest 30 property sales in the LL21 area, sourced from HM Land Registry Price Paid Data.
detached
£183,621
24 sales
terraced
£102,165
23 sales
semi-detached
£142,262
13 sales
flat-maisonette
£63,500
2 sales
| Date | Address | Type | Price |
|---|---|---|---|
| Nov 2025 | 5, MAES GLYNDWR, CORWEN | detached | £215,000 |
| Oct 2025 | MINFFORDD HOUSE, BRIDGE STREET, CORWEN | semi-detached | £142,500 |
| Sept 2025 | 1, EDEYRNION TERRACE, CORWEN | semi-detached | £130,000 |
| Mar 2025 | FFERYLLFA, BRIDGE STREET, CORWEN | other | £80,000 |
| Jun 2024 | 14, MAES GLYNDWR, CORWEN | detached | £285,000 |
| Apr 2024 | CILGWYN, BRIDGE STREET, CORWEN | terraced | £160,000 |
| Feb 2024 | MINIFFORD SHOP, BRIDGE STREET, CORWEN | other | £60,000 |
| Feb 2024 | ANNWFYN, BRIDGE STREET, CORWEN | detached | £200,000 |
| Jan 2024 | 11, MAES GLYNDWR, CORWEN | detached | £310,000 |
| Oct 2023 | 8, THE TERRACE, CORWEN | terraced | £175,000 |
| Jul 2023 | CROWN HOTEL, BRIDGE STREET, CORWEN | other | £434,998 |
| Nov 2022 | COMMERCE HOUSE, BRIDGE STREET, CORWEN | other | £85,000 |
| Oct 2022 | 7, THE TERRACE, CORWEN | terraced | £268,000 |
| Sept 2022 | 18, MAES GLYNDWR, CORWEN | semi-detached | £257,000 |
| Sept 2022 | STATION HOUSE, BRIDGE STREET, CORWEN | other | £150,000 |
Energy performance
Aggregate EPC stats from 54 recently-certified properties in the LL21 area.
Sample size
54
Rating distribution
A
0
B
10
C
20
D
12
E
7
F
5
G
0
Area information
- Local authority
- Conwy, Denbighshire, Gwynedd
- Country
- Wales
- Wards
- Edeirnion, Efenechdyd, Llandderfel
- Constituency
- Bangor Aberconwy
- Latitude
- 52.9899
- Longitude
- -3.4104
More for LL21
Typical property
What the typical LL21 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 LL21
HM Land Registry from 1995
Corporate freeholders
Companies registered in LL21
Live Companies House data + PSCs
EPC checker
Look up any LL21 address
Energy ratings + improvement options
Crime checker
Local breakdown for LL21
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 LL21 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.