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Postcode · Caernarfon

Housing in LL55 3LS

What the homes in LL55 3LS are, who owns them, how many people share them and what they rent for.

Neighbourhood
Llanberis & Deiniolen
Council
Gwynedd
Region
Wales
Neighbourhood population
1,859 (2024)
Property types

What homes look like here

Most homes here are terraced (38.6%). Flats make up 2.2%, less than half the 12.5% across Wales.

LL55 3LSWales
Detached33.8%28.5%
Semi-detached25%32.1%
Terraced38.6%26.6%
Purpose-built flat0.4%9.4%
Flat in a converted or shared house0.2%1.8%
Flat in a commercial or converted building1.6%1.3%
Caravan or mobile home0.4%0.3%
Tenure

Owning vs renting

Across Wales, 66.1% of households own their home; the LL55 3LS area is broadly in line with that, at 65.8%. The private rented sector is well below the national picture, at 12.2% of households against 17%. 39.3% own outright and 26.5% with a mortgage.

LL55 3LS
66%
12%
21%
Wales
  • Owned65.8%66.1%
  • Shared ownership0.1%0.3%
  • Private rented12.2%17%
  • Social rented20.9%16.5%
  • Lives rent free1%0.2%

Who owns, who rents from whom

LL55 3LSWales
Owned outright39.3%38%
With a mortgage or loan26.5%28%
From a private landlord or letting agent8.6%14.5%
Other private rented3.6%2.5%
From the council10.9%8.7%
From a housing association10%7.8%
Occupancy

How many people live in each home

The average home here has 2.3 people living in it. 32.3% of households are one person living alone, against 31.9% across Wales.

LL55 3LSWales
0%
10%
20%
30%
40%
123456+
Households

Who lives together

The most common household is couple with dependent children, at 18.8%. 26.6% of households include dependent children.

LL55 3LSWales
Living alone, under 6617.1%17.3%
Living alone, 66 and over15%14.6%
Couple, no children15.1%16.5%
Couple with dependent children18.8%16.9%
Couple with grown-up children7.6%6.8%
Lone parent with dependent children7.8%7.6%
Lone parent with grown-up children5.7%4.4%
Family, all aged 66 and over6.9%10.2%
Sharers and other households5.9%5.6%
Rents

Private rents in Gwynedd

Average monthly rent for a new or renewed tenancy in Gwynedd, August 2026, +6.9% on a year earlier. Published by council, not by neighbourhood.

GwyneddWales
All homes£724£846
One bedroom£559£636
Two bedrooms£676£779
Three bedrooms£804£890
Four or more£1,055£1,247
Detached£885£1,083
Semi-detached£770£877
Terraced£703£833
Flat or maisonette£631£706
About these figures

Census figures aren't published for single postcodes, so everything on this tab describes the neighbourhood LL55 3LS sits in (Llanberis & Deiniolen): about 1,859 residents.

Source: Census 2021, Office for National Statistics. Population: ONS mid-year estimates. Open Government Licence v3.0. Rents: ONS Price Index of Private Rents.

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