LL23 Postcode Data
Property data for the LL23 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 LL23 is £115,063 (median £87,000), based on 161 HM Land Registry transactions. Police UK recorded 19 crimes within a 1-mile radius in 2026-05.
Headline pricing in LL23 is below the UK national average (England & Wales average ~£290k as of 2025). Stock is dominated by terraced properties (124 of the last 161 sales).
Avg sale price
£115,063
161 sales
Median price
£87,000
Crime incidents
19
2026-05
Avg EPC score
n/a
136 certs
Recent sold prices
Latest 30 property sales in the LL23 area, sourced from HM Land Registry Price Paid Data.
terraced
£88,198
124 sales
detached
£128,444
9 sales
semi-detached
£142,000
4 sales
flat-maisonette
£30,500
1 sales
| Date | Address | Type | Price |
|---|---|---|---|
| Dec 2025 | 92, HIGH STREET, BALA | terraced | £315,000 |
| Dec 2025 | 33, ARENIG STREET, BALA | terraced | £105,000 |
| Nov 2025 | 100, HIGH STREET, BALA | detached | £150,000 |
| Aug 2025 | 36, ARENIG STREET, BALA | terraced | £107,000 |
| Jul 2025 | 8, MAESYBRONYDD, BALA | terraced | £112,000 |
| Mar 2025 | 14, MAESYBRONYDD, BALA | terraced | £83,000 |
| Jan 2025 | 28, ARENIG STREET, BALA | terraced | £123,000 |
| Jan 2025 | 87, HIGH STREET, BALA | other | £170,000 |
| Jan 2025 | 87, HIGH STREET, BALA | other | £140,000 |
| Nov 2024 | 11, ARENIG STREET, BALA | terraced | £210,000 |
| Oct 2024 | 35, STRYD FAWR, BALA | other | £210,000 |
| Sept 2024 | 2, ARENIG STREET, BALA | detached | £300,000 |
| Sept 2024 | 61, HIGH STREET, BALA | other | £548,306 |
| Aug 2024 | 1 RHESDAI'R PLAS, ARENIG STREET, BALA | terraced | £143,000 |
| Jun 2024 | 24, MAESYBRONYDD, BALA | terraced | £93,500 |
Crime in LL23
19 reported crimes within a 1-mile radius of the postcode centroid in 2026-05, from Police UK data.
Anti Social Behaviour
6
Violent Crime
6
Criminal Damage Arson
3
Shoplifting
3
Other Crime
1
Energy performance
Aggregate EPC stats from 136 recently-certified properties in the LL23 area.
Sample size
136
Rating distribution
A
6
B
0
C
26
D
57
E
28
F
12
G
7
Area information
- Local authority
- Gwynedd
- Country
- Wales
- Wards
- Llandderfel, Llanuwchllyn, Y Bala
- Constituency
- Dwyfor Meirionnydd
- Latitude
- 52.9053
- Longitude
- -3.6019
More for LL23
Typical property
What the typical LL23 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 LL23
HM Land Registry from 1995
Corporate freeholders
Companies registered in LL23
Live Companies House data + PSCs
EPC checker
Look up any LL23 address
Energy ratings + improvement options
Crime checker
Local breakdown for LL23
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 LL23 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.