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Gwynedd, Wales

LL55 Postcode Data

Property data for the LL55 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 LL55 is £120,738 (median £121,500), based on 92 HM Land Registry transactions. Police UK recorded 1 crimes within a 1-mile radius in 2026-05.

Headline pricing in LL55 is below the UK national average (England & Wales average ~£290k as of 2025). Stock is dominated by terraced properties (46 of the last 92 sales).

Avg sale price

£120,738

92 sales

Median price

£121,500

Crime incidents

1

2026-05

Avg EPC score

n/a

113 certs

Recent sold prices

Latest 30 property sales in the LL55 area, sourced from HM Land Registry Price Paid Data.

terraced

£97,530

46 sales

semi-detached

£140,967

15 sales

detached

£248,857

7 sales

flat-maisonette

£80,000

1 sales

DateAddressTypePrice
Dec 202523 - 25, BRIDGE STREET, CAERNARFONother£300,000
Jul 202516, BANGOR STREET, CAERNARFONother£225,000
Jul 20254, BRIDGE STREET, CAERNARFONother£170,000
Jul 20252, BRIDGE STREET, CAERNARFONother£170,000
May 20256A, EASTGATE STREET, CAERNARFONterraced£55,000
Oct 20246, BANGOR STREET, CAERNARFONterraced£50,000
Aug 20249, BRO RHOS, CAERNARFONterraced£180,000
Apr 20241 - 3, BANGOR STREET, CAERNARFONother£85,000
Mar 202422, BANGOR STREET, CAERNARFONother£50,000
Mar 2024FLAT, 40, BRIDGE STREET, CAERNARFONother£95,000
Mar 202438, BRIDGE STREET, CAERNARFONother£65,000
Dec 202344, BRIDGE STREET, CAERNARFONother£20,000
May 20235, BRIDGE STREET, CAERNARFONother£18,000
May 20237 - 9, BRIDGE STREET, CAERNARFONother£47,000
Mar 202320, CREMLYN, CAERNARFONsemi-detached£210,000

Crime in LL55

1 reported crimes within a 1-mile radius of the postcode centroid in 2026-05, from Police UK data.

Violent Crime

1

Energy performance

Aggregate EPC stats from 113 recently-certified properties in the LL55 area.

Sample size

113

Rating distribution

A

0

B

0

C

35

D

54

E

19

F

3

G

2

Area information

Local authority
Gwynedd
Country
Wales
Wards
Bethel a'r Felinheli, Cadnant, Canol Tref Caernarfon
Constituency
Dwyfor Meirionnydd
Latitude
53.1341
Longitude
-4.2039

More for LL55

Typical property

What the typical LL55 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 LL55

HM Land Registry from 1995

Corporate freeholders

Companies registered in LL55

Live Companies House data + PSCs

EPC checker

Look up any LL55 address

Energy ratings + improvement options

Crime checker

Local breakdown for LL55

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 LL55 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.