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Gwynedd, Wales

LL57 Postcode Data

Property data for the LL57 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 LL57 is £114,113 (median £115,000), based on 79 HM Land Registry transactions. The average EPC rating across 150 certified properties is 64/100.

Headline pricing in LL57 is below the UK national average (England & Wales average ~£290k as of 2025). Stock is dominated by semi-detached properties (42 of the last 79 sales). Energy efficiency here is weaker than average (expect higher running costs and lower mortgage-affordability scores from green lenders).

Avg sale price

£114,113

79 sales

Median price

£115,000

Crime incidents

n/a

Avg EPC score

64/100

150 certs

Recent sold prices

Latest 30 property sales in the LL57 area, sourced from HM Land Registry Price Paid Data.

semi-detached

£120,313

42 sales

terraced

£110,086

32 sales

detached

£99,875

4 sales

DateAddressTypePrice
Mar 20262, PENLON GARDENS, BANGORsemi-detached£260,000
Nov 2025TANYGRAIG, GLYNNE ROAD, BANGORsemi-detached£209,950
Oct 202410, PENLON GARDENS, BANGORsemi-detached£210,000
Jul 20245, PENLON GARDENS, BANGORsemi-detached£220,000
Jun 20248, GER Y MYNYDD, BANGORterraced£115,000
Apr 20243, PENLON GARDENS, BANGORsemi-detached£200,000
Aug 20238, FRIARS COTTAGE, GLYNNE ROAD, BANGORterraced£132,500
Jun 202315, GER Y MYNYDD, BANGORterraced£105,000
Mar 202316, GER Y MYNYDD, BANGORterraced£110,000
Oct 20221A, GLYNNE ROAD, BANGORother£39,500
Oct 202214, GER Y MYNYDD, BANGORterraced£130,000
Aug 202210, GER Y MYNYDD, BANGORterraced£120,000
May 20229, GER Y MYNYDD, BANGORterraced£130,000
Jan 2022ARBUTUS, 1, GLYNNE ROAD, BANGORsemi-detached£175,000
May 202114, GER Y MYNYDD, BANGORterraced£102,000

Energy performance

Aggregate EPC stats from 150 recently-certified properties in the LL57 area.

Avg current score

64/100

Avg potential

79/100

Avg energy cost

£925/yr

Sample size

150

Rating distribution

A

0

B

9

C

46

D

72

E

20

F

3

G

0

Area information

Local authority
Gwynedd
Country
Wales
Wards
Arllechwedd, Canol Bangor, Canol Bethesda
Constituency
Bangor Aberconwy
Latitude
53.2067
Longitude
-4.1119

More for LL57

Typical property

What the typical LL57 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 LL57

HM Land Registry from 1995

Corporate freeholders

Companies registered in LL57

Live Companies House data + PSCs

EPC checker

Look up any LL57 address

Energy ratings + improvement options

Crime checker

Local breakdown for LL57

Police UK monthly data

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Data 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 LL57 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.