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 £307,853 (median £172,000), based on 31 HM Land Registry transactions. Police UK recorded 1 crimes within a 1-mile radius in 2026-03. The average EPC rating across 70 certified properties is 39/100.
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 (21 of the last 31 sales). Energy efficiency here is weaker than average (expect higher running costs and lower mortgage-affordability scores from green lenders).
Avg sale price
£307,853
31 sales
Median price
£172,000
Crime incidents
1
2026-03
Avg EPC score
39/100
70 certs
Recent sold prices
Latest 30 property sales in the LL66 area, sourced from HM Land Registry Price Paid Data.
detached
£202,524
21 sales
semi-detached
£116,750
6 sales
| Date | Address | Type | Price |
|---|---|---|---|
| Oct 2024 | GORFFWYSFA, RHOSGOCH | detached | £260,000 |
| Mar 2023 | SIOP Y GOEDEN, RHOSGOCH | other | £399,950 |
| Nov 2021 | BRYN HYFRYD, RHOSGOCH | detached | £535,000 |
| Apr 2020 | ARDRO, RHOSGOCH | detached | £250,000 |
| Sept 2017 | BRYN ALAW, RHOSGOCH | other | £245,000 |
| Sept 2017 | BRYN ALAW, RHOSGOCH | other | £245,000 |
| Jan 2017 | GLYN EWRYD, RHOSGOCH | detached | £380,000 |
| Oct 2016 | YR EFAIL RHOSBEIRIO, RHOSGOCH | detached | £290,000 |
| Oct 2016 | RHOSBEIRIO FARM, RHOSGOCH | other | £3,700,000 |
| Apr 2016 | 3, BRO DAWEL, RHOSGOCH | detached | £168,000 |
| May 2014 | GORFFWYSFA, RHOSGOCH | detached | £125,000 |
| Aug 2013 | 3, BRO DAWEL, RHOSGOCH | detached | £154,500 |
| Oct 2008 | RHOSGOCH HOTEL, RHOSGOCH | detached | £250,000 |
| Dec 2007 | 3, BRO DAWEL, RHOSGOCH | semi-detached | £170,000 |
| Apr 2007 | ARDRO, RHOSGOCH | detached | £220,000 |
Crime in LL66
1 reported crimes within a 1-mile radius of the postcode centroid in 2026-03, from Police UK data.
Violent Crime
1
Energy performance
Aggregate EPC stats from 70 recently-certified properties in the LL66 area.
Avg current score
39/100
Avg potential
81/100
Avg energy cost
£2,120/yr
Sample size
70
Rating distribution
A
0
B
2
C
3
D
10
E
21
F
24
G
10
Area information
- Local authority
- Isle of Anglesey
- Country
- Wales
- Wards
- Talybolion, Twrcelyn
- Constituency
- Ynys Môn
- Latitude
- 53.3798
- 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. Counts cover a 1-mile radius from the LL66 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.