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Pen-y-groes

Interactive map displaying Pen-y-groes

About

Pen-y-groes is a village within the Nantlle Valley, situated between the peaks of the Eifionydd hills and the shores of the Afon Llyfni. The area developed significantly in the 19th century around the slate industry and local quarries. Its layout reflects this industrial past, with terraced housing built for workers. The ward includes the neighbouring village of Llanllyfni, connected by the main road that runs through the valley floor.

The local economy has diversified from its historical base. The landscape is defined by former quarry sites and the presence of Yr Wyddfa (Snowdon) visible to the east. Community life centres on local schools, chapels, and shops along the high street. The area is a through-route for traffic heading towards the Llŷn Peninsula, linking the coastal and inland parts of Gwynedd.

Area overview

On average Pen-y-groes has average deprivation and average crime levels, with around 80 crimes per 1,000 residents per year, in line with the Wales average of 86 per 1,000. Approximately 18.9% of homes in this area are social housing provided by a local council or housing association. The average income per household in Pen-y-groes is £43,746 per year. Pen-y-groes is home to around 1,792 people, with a population density of about 245.6 per km².

Crime rate
5/10
Crimes per 1k residents
80
Deprivation level
5/10
Income level
6/10
Social housing
18.9%
Connectivity
N/A

Area Profile

Pen-y-groes Population
1,792
Population density
245.6 per km²

Crime

Crime per 1,000 population

Violence and sexual offences
53.01(+56%)
Anti-social behaviour
26.79(+106%)
Criminal damage and arson
10.04(+37%)
Public order
7.25(-12%)
Other theft
3.91(-15%)
Wales average

Demographics

Ethnic groups

British
1,732
96.6%
Other White
21
1.17%
White and Black Caribbean (mixed)
10
0.56%
Chinese
5
0.28%
Other Asian
5
0.28%
Total population: 1,793

Economics

Education (age 16+)

Level 4 qualifications or above
451
30.98%
No qualifications
309
21.22%
Level 3 (A level)
238
16.35%
Level 2 (GCSEs 9-4)
212
14.56%
Level 1 (GCSEs 3-1)
105
7.21%
Total 16+ residents: 1,456

Housing

Housing tenure

Owns outright
316
39.35%
Owns with a mortgage
180
22.42%
Private landlord or letting agency
105
13.08%
Other social rented
89
11.08%
Social rents from council
83
10.34%
Total households: 803

Property prices in Pen-y-groes

Median price£148,000
Price per sq ft£160
Sales (last 12 months)11
Typical range (middle 50%)£111K – £166K

Based on 11 recent sales, the median property price is £148,000 (about £160 per square foot) in Pen-y-groes area, with individual transactions ranging from £80,000 up to £245,000.

Prices by property typelast 12 months

Median sale price, median price per square foot, sales count, and percentile information for each property type in Pen-y-groes over the last year.
TypeSalesMedian£/sq ft
Detached1£245,000£187
Semi-Detached1£148,000£186
Terraced9£120,000£151

10-year price trendmedian sale price in Pen-y-groes

Sale price

Ten year median sale price trend for each property type in Pen-y-groes.
YearDetachedTerraced
2016£105,000
2017£207,475£84,500
2018£165,000£91,000
2019£178,000£90,000
2020£160,000£89,000
2021£160,000£117,500
2022£272,500£122,500
2023£230,000£126,000
2024£237,500£125,000
2025£256,500£141,000
2026£120,000
Ten year median sale price trend for each property type in Pen-y-groes.

Price per sq ft

Ten year median sale price per square foot trend for each property type in Pen-y-groes.
YearDetachedTerraced
2016£123
2017£168£133
2018£107£111
2019£182£109
2020£171£111
2021£181£123
2022£210£147
2023£157£132
2024£192£150
2025£187£151
2026£151
Ten year median sale price per square foot trend for each property type in Pen-y-groes.

Price distribution by property typelast 12 months

Price distribution by property type for Pen-y-groes in the last year.

Frequently asked questions about Pen-y-groes

Is Pen-y-groes safe?

Pen-y-groes records about 80 crimes per 1,000 residents per year, which is a average crime rate for England: it scores 5 out of 10 on the Area360 crime scale, where 10 is the highest crime level.

What is the average house price in Pen-y-groes?

The median sale price in Pen-y-groes is £148,000 (about £160 per square foot) based on 11 registered sales according to HM Land Registry data.

How deprived is Pen-y-groes?

Pen-y-groes scores 5 out of 10 on the deprivation scale, where 10 is the most deprived. The typical neighbourhood in Pen-y-groes sits around rank 1,090 of 32,844 in England on the official Index of Multiple Deprivation (rank 1 is the most deprived).

What is the average household income in Pen-y-groes?

The average household income in Pen-y-groes is around £43,746 per year, and 19% of homes are social housing (ONS data).

Who are the local councillors for Pen-y-groes?

Pen-y-groes is represented by 1 elected councillor: Craig Jeremy Ab Lago (Plaid Cymru - The Party of Wales).

Data Sources

All data is sourced from official UK government agencies and public datasets. Last updated: 16/07/2026. Read more about how our statistics are calculated.