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LL55 4SN area guide

Who lives in LL55 4SN, what homes sell for, and how it compares on crime, schools and transport.

Neighbourhood
Llanberis & Deiniolen
Council
Gwynedd
Region
Wales
Neighbourhood population
1,988 (2024)
At a glance

What LL55 4SN is like

LL55 4SN is a postcode in the Llanberis & Deiniolen area of Gwynedd. Because census and crime data isn’t published for single postcodes, the figures here cover the surrounding neighbourhood of about 1,988 people. 67% of households own their home, 15.2% rent privately and 17.3% are in social housing. The largest age group is 50–54, and 59.6% of adults are in work. On deprivation, it sits near the middle of the scale for Wales. Higher-harm crime is well below the England and Wales average. Homes in LL55 4 sold for a median of £215,000 over the year to August 2026.

Scores

How LL55 4SN compares

Headline figures for LL55 4SN, set against Wales as a whole.

AffluenceMore
7.0/ 10

Around the middle. Scored from 1 (most deprived in Wales) to 10 (least deprived).

CrimeMore
5/ 10

Around the middle: 20.4 higher-harm crimes per 1,000 people a year vs 31.1 nationally.

House pricesMore
£215,000

Median over 69 sales in LL55 4, −2.3% on the year before.

TransportMore
3.7/ 10

Limited: 1 station within a mile, 13 bus stops within 800m.

SchoolsMore
6

6 schools nearby. None has a published inspection grade.

Household incomeMore
£49,454

Average annual income before tax, higher than 40% of neighbourhoods in England and Wales.

Questions

LL55 4SN FAQs

01
Is LL55 4SN a good place to live?

Deprivation, crime, schools and transport at a glance.

It scores 7.0 out of 10 on the Welsh Index of Multiple Deprivation 2025, where 10 is the least deprived in Wales. Higher-harm crime runs at 20.4 per 1,000 people a year, band 5 of 10 nationally. Transport connectivity scores 3.7 out of 10 (limited).
02
How much does a house cost in LL55 4SN?

The median sale price over the last year was £215,000.

Homes in LL55 4 sold for a median of £215,000 across 69 sales in the year to August 2026, −2.3% on the year before. Prices come from HM Land Registry’s record of every residential sale.
03
Is LL55 4SN safe?

How recorded crime here compares with the national average.

Higher-harm crime (violence, robbery, burglary, vehicle crime and weapons offences) runs at 20.4 offences per 1,000 people a year around LL55 4SN, well below the 31.1 average across England and Wales, band 5 of 10.
04
Who lives in LL55 4SN?

Age, home ownership and housing from the census.

The largest age group is 50–54, at 9.3% of residents. 67% of households own their home. The most common property type is terraced (47.3%).
05
Which council covers LL55 4SN?

The local authority for LL55 4SN is Gwynedd.

LL55 4SN comes under Gwynedd in Wales. Council tax, planning applications and bin collections are handled there.
06
How well connected is LL55 4SN?

Connectivity scores 3.7 out of 10.

There are 13 bus stops within 800m and 1 station or tram stop within a mile, scoring 3.7 out of 10 (limited). The nearest station is Llanberis (Snowdon Mountain Railway), 0.4 miles away.

Sources: Census 2021 (ONS); ONS mid-year population estimates; police recorded crime; the English, Welsh and Scottish indices of deprivation; ONS small area income estimates; ONS private rents; DfE, Welsh and Scottish school registers and Ofsted; DfT NaPTAN; ORR estimates of station usage; HM Land Registry Price Paid Data. Contains public sector information licensed under the Open Government Licence v3.0. Contains OS data © Crown copyright and database right.

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