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Y Groeslon

About

Y Groeslon ward lies in the southern part of Gwynedd, encompassing a largely rural landscape. The area is centred around the village of Groeslon itself, situated along the A487 road between Caernarfon and Penygroes. The ward's terrain includes agricultural land and lower slopes of the Eifionydd region, with views towards the mountains of Snowdonia to the east. Settlement is primarily dispersed, with smaller hamlets and farms spread across the ward's boundaries.

The local economy has traditional roots in agriculture and slate quarrying, with several former quarry sites within the area. Community life focuses on the village school, chapels, and local services. The ward is traversed by the Nantlle Railway path, a leisure route following the trackbed of an historic railway that once served the slate industry, offering quiet walking and cycling through the countryside.

Area overview

On average Y Groeslon has moderate deprivation and very low crime levels, with around 32 crimes per 1,000 residents per year. Approximately 9.2% of homes in this area are social housing provided by a local council or housing association. The average income per household in Y Groeslon is £43,746 per year. Y Groeslon is home to around 1,666 people, with a population density of about 79.7 per km2.

Crime rate

1/10

Crimes per 1k residents

Deprivation level

3/10

Income level

6/10

Connectivity

N/A

Area Profile

Y Groeslon Population

1,666

Population density

79.7 per km²

Crime

Violence and sexual offences

18.61(-49%)

Anti-social behaviour

16.21(+12%)

Other theft

4.2(-17%)

Public order

3.6(-60%)

Criminal damage and arson

2.4(-70%)

Wales average

Demographics

British

1,638

98.32%

Other White

0.72%

Irish

0.3%

White and Black Caribbean (mixed)

0.18%

Indian

0.18%

Total population: 1,666

Economics

Level 4 qualifications or above

577

41.18%

Level 3 (A level)

239

17.06%

Level 2 (GCSEs 9-4)

197

14.06%

No qualifications

182

12.99%

Apprenticeship

6.85%

Total 16+ residents: 1,401

Housing

Owns outright

373

51.88%

Owns with a mortgage

210

29.21%

Private landlord or letting agency

5.84%

Other social rented

4.87%

Social rents from council

4.45%

Total households: 719

Property prices in Y Groeslon

Based on 13 recent sales, the median property price is £175,000 in Y Groeslon area, with individual transactions ranging from £100,000 up to £320,000.

Price distribution per property type (last year)

Median sale price and percentiles per property type (last year)

Median sale price, sales count, and percentile information for each property type in Y Groeslon over the last year.
Type	Sales	Median	5th percentile	25th percentile (Lower quartile)	75th percentile (Upper quartile)	95th percentile
Detached	2	£275,000	£234,500	£252,500	£297,500	£315,500
Semi-Detached	4	£166,000	£121,800	£129,000	£223,250	£279,050
Terraced	7	£170,000	£106,000	£132,500	£177,500	£190,500

10 years median price trend in Y Groeslon

All postcodes in Y Groeslon

LL547TF

Y Groeslon

LL545TH

Dol Meredydd

LL547TA

Y Grugan

LL547DL

Lon Cefn Gosen

LL547SU

Grugan Ganol Cottages

LL545SS

Lon Cefn Glyn

LL547AP

Lon Bron Arfon

LL547EE

Y Groeslon

LL547TR

Lon Llainffynnon

LL547TT

Lon Llainffynnon

LL545ST

Y Groeslon

LL547TJ

Lon Newydd

LL547UA

Brynteg

LL547TY

Pen Bonc

LL547DW

Y Groeslon

LL545SE

Y Groeslon

LL547DE

Glynllifon Terrace

LL545SL

Y Groeslon

LL545SR

Lon Cefn Glyn

LL545TP

Lôn Morfa

LL547EW

Y Groeslon

LL547SW

Pen Bonc

LL545EB

Clynnog Road

LL545TE

Y Groeslon

LL545TF

Y Groeslon

LL547DD

Y Groeslon

LL547TL

Dyffryn Terrace

LL547TN

Dol Elen

LL547PG

Y Groeslon

LL547TG

Rathbone Terrace

LL545TJ

Ger Y Llan

LL545EA

Y Groeslon

LL547DN

Pen Bonc

LL545SH

Y Groeslon

LL545SN

Tyn Lon

LL547DP

Green Bank

LL547EG

Maes Tryfan

LL547UB

Pen Bonc

LL545TA

Y Groeslon

LL545TN

Y Groeslon

LL547UL

Y Groeslon

LL547EL

Maes Tryfan

LL547EH

Maes Tryfan

LL547TU

Frondeg Terrace

LL547BF

Y Groeslon

LL547TH

Y Groeslon

LL545TW

Snowden View

LL547EN

Maes Tryfan

LL547TP

Lon Llainffynnon

LL545LL

Beddgwenan Estate

LL547DG

Ffordd Iago

LL545SF

Collfryn Cottages

LL547TW

Caesarn

LL545TT

Maes Y Llan

LL547UF

Penrallt Villas

LL547TD

Grugan Terrace

LL545SJ

Y Groeslon

LL545SG

Y Groeslon

LL547SY

Trewen

LL547UD

Pen Bonc

LL545SW

Lon Cefn Glyn

LL547EF

Y Groeslon

LL547NL

Maes Tryfan

LL547UE

Lon Grugan Ddu

LL547DT

Lon Cerreg Fawr

LL547ED

Y Groeslon

LL545SU

Caerllwyn Cottages

LL547TE

Gladstone Terrace

LL547AW

Y Groeslon

LL547TS

Lon Llainffynnon

LL547ST

Lon Newydd

LL545SY

School Cottages

LL545TD

Crescent

LL545TQ

Maes Gwydion

LL545TR

Tyn Llan Estate

LL547EA

Bryn Ffynnon

LL547EB

Garreg Fawr

LL547TB

Bryn Glas

LL545DY

Beddgwenan

LL547DF

Glynllifon Square

LL545TB

Church Cottages

LL547DY

Bryn Iago

LL545DU

Lon Cefn Glyn

LL547DU

Y Garreg

LL547DH

Ffordd Iago

LL547TQ

Cefn Dyffryn

Data Sources

All data is sourced from official UK government agencies and public datasets. Last updated: 16/01/2026.

HM Land Registry • Police.uk • DfE • ONS • TfL • National Rail

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Y Groeslon

Interactive map displaying Y Groeslon

About

Area overview

Area Profile

Crime

Crime per 1,000 population

Demographics

Ethnic groups

Economics

Education (age 16+)

Housing

Housing tenure

Property prices in Y Groeslon

All postcodes in Y Groeslon

Data Sources