LL66 Postcode Data
Property data for the LL66 postcode district covering Isle of Anglesey. 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 LL66 is £261,342 (median £180,000), based on 61 HM Land Registry transactions.
Headline pricing in LL66 is broadly in line with the UK national average (England & Wales average ~£290k as of 2025). Stock is dominated by detached properties (46 of the last 61 sales).
Avg sale price
£261,342
61 sales
Median price
£180,000
Crime incidents
n/a
Avg EPC score
n/a
63 certs
Recent sold prices
Latest 30 property sales in the LL66 area, sourced from HM Land Registry Price Paid Data.
detached
£217,814
46 sales
semi-detached
£122,245
10 sales
| Date | Address | Type | Price |
|---|---|---|---|
| Mar 2025 | 1, BRYN SEION, RHOSGOCH | semi-detached | £72,000 |
| Oct 2024 | GORFFWYSFA, RHOSGOCH | detached | £260,000 |
| Mar 2023 | SIOP Y GOEDEN, RHOSGOCH | other | £399,950 |
| Feb 2023 | DAFAM HURYIAD, RHOSGOCH | detached | £460,000 |
| Jan 2023 | CAE ELEN, RHOSGOCH | detached | £480,000 |
| Nov 2022 | TYDDYN PANDY, RHOSGOCH | detached | £185,000 |
| Dec 2021 | GWENALLT, RHOSGOCH | detached | £268,000 |
| Nov 2021 | BRYN HYFRYD, RHOSGOCH | detached | £535,000 |
| Nov 2020 | GWENALLT, RHOSGOCH | detached | £240,000 |
| Apr 2020 | ARDRO, RHOSGOCH | detached | £250,000 |
| Jan 2020 | TYNLON SEION, RHOSGOCH | detached | £210,000 |
| Jul 2019 | TY CAPEL SEION, RHOSGOCH | other | £110,000 |
| Nov 2018 | PANT Y GLO, RHOSGOCH | detached | £340,000 |
| Mar 2018 | TYN YR ALLT, RHOSGOCH | detached | £220,000 |
| Sept 2017 | BRYN ALAW, RHOSGOCH | other | £245,000 |
Energy performance
Aggregate EPC stats from 63 recently-certified properties in the LL66 area.
Sample size
63
Rating distribution
A
0
B
0
C
3
D
9
E
21
F
20
G
10
Area information
- Local authority
- Isle of Anglesey
- Country
- Wales
- Wards
- Talybolion, Twrcelyn
- Constituency
- Ynys Môn
- Latitude
- 53.3797
- Longitude
- -4.4082
More for LL66
Typical property
What the typical LL66 property looks like
Area summary, buyer notes, researched facts
Council tax
Isle of Anglesey 2025/26 rates
All bands, monthly cost, discounts
Sold prices tool
Full transaction history for LL66
HM Land Registry from 1995
Corporate freeholders
Companies registered in LL66
Live Companies House data + PSCs
EPC checker
Look up any LL66 address
Energy ratings + improvement options
Crime checker
Local breakdown for LL66
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 LL66 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.