Find postcode

Glaslyn

Interactive map displaying Glaslyn

About

Glaslyn ward lies within the Porthmadog community in Gwynedd, situated between the waters of the Glaslyn River estuary and Tremadog Bay. The area encompasses the town of Porthmadog itself, which developed around its historic harbour. This location places it at the coastal gateway to the Snowdonia National Park, with the peaks of the Moelwynion range visible inland.

The ward's landscape is defined by the expansive, low-lying Traeth Mawr estuary, once a tidal inlet before the construction of the Cob embankment. This nineteenth-century causeway, carrying a road and the Ffestiniog Railway, permanently altered the hydrology and created the fertile Glaslyn Marshes. The harbour area, with its distinctive slate-built warehouses, speaks directly to its past role in the regional slate trade.

Area overview

On average Glaslyn has low 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 14.1% of homes in this area are social housing provided by a local council or housing association. The average income per household in Glaslyn is £42,768 per year. Glaslyn is home to around 1,633 people, with a population density of about 12.3 per km².

Crime rate
5/10
Crimes per 1k residents
80
Deprivation level
4/10
Income level
5/10
Social housing
14.1%
Connectivity
N/A

Area Profile

Glaslyn Population
1,633
Population density
12.3 per km²

Crime

Crime per 1,000 population

Violence and sexual offences
50.83(+50%)
Anti-social behaviour
26.33(+102%)
Public order
10.41(+27%)
Criminal damage and arson
7.35(0%)
Other theft
4.29(-6%)
Wales average

Demographics

Ethnic groups

British
1,539
94.24%
Other White
48
2.94%
Irish
13
0.8%
White and Asian (mixed)
9
0.55%
Other Mixed or Multiple ethnic groups
7
0.43%
Total population: 1,633

Economics

Education (age 16+)

Level 4 qualifications or above
494
36.3%
Level 3 (A level)
242
17.78%
No qualifications
207
15.21%
Level 2 (GCSEs 9-4)
189
13.89%
Level 1 (GCSEs 3-1)
111
8.16%
Total 16+ residents: 1,361

Housing

Housing tenure

Owns outright
365
47.16%
Other social rented
133
17.18%
Owns with a mortgage
126
16.28%
Private landlord or letting agency
74
9.56%
Social rents from council
40
5.17%
Total households: 774

Property prices in Glaslyn

Median price£215,000
Price per sq ft£238
Sales (last 12 months)17
Typical range (middle 50%)£165K – £320K

Based on 17 recent sales, the median property price is £215,000 (about £238 per square foot) in Glaslyn area, with individual transactions ranging from £129,000 up to £430,000.

Prices by property typelast 12 months

Median sale price, median price per square foot, sales count, and percentile information for each property type in Glaslyn over the last year.
TypeSalesMedian£/sq ft
Detached3£350,000£337
Terraced10£213,750£245
Semi-Detached4£178,025£158

10-year price trendmedian sale price in Glaslyn

Sale price

Ten year median sale price trend for each property type in Glaslyn.
YearDetachedSemi-DetachedTerraced
2016£225,000£158,750£134,500
2017£227,500£169,950£127,500
2018£285,000£180,000£145,000
2019£277,500£118,000£130,250
2020£204,250£170,000£142,000
2021£290,000£201,500£183,250
2022£270,250£195,000£175,000
2023£338,500£235,000£137,500
2024£285,000£225,000£167,000
2025£327,533£190,000£213,750
2026—£158,025£131,000
Ten year median sale price trend for each property type in Glaslyn.

Price per sq ft

Ten year median sale price per square foot trend for each property type in Glaslyn.
YearDetachedSemi-DetachedTerraced
2016£213£169£143
2017£199£454£243
2018£193£174£187
2019£212£126£167
2020£194£189£177
2021£249£165£220
2022£246£208£213
2023£293£216£199
2024£296£246£198
2025£276£264£272
2026—£139£197
Ten year median sale price per square foot trend for each property type in Glaslyn.

Price distribution by property typelast 12 months

Price distribution by property type for Glaslyn in the last year.

Frequently asked questions about Glaslyn

Is Glaslyn safe?

Glaslyn 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 Glaslyn?

The median sale price in Glaslyn is £215,000 (about £238 per square foot) based on 17 registered sales according to HM Land Registry data.

How deprived is Glaslyn?

Glaslyn scores 4 out of 10 on the deprivation scale, where 10 is the most deprived. The typical neighbourhood in Glaslyn sits around rank 1,185 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 Glaslyn?

The average household income in Glaslyn is around £42,768 per year, and 14% of homes are social housing (ONS data).

Who are the local councillors for Glaslyn?

Glaslyn is represented by 1 elected councillor: June Jones (Plaid Cymru - The Party of Wales).

All postcodes in Glaslyn

LL554NQ

Glaslyn

LL499BJ

Glaslyn

LL499SS

London Terrace

LL499TD

Glaslyn

LL486DU

Garreg Frech

LL499SR

Glaslyn Cottages

LL554NL

Cwmorthin Road

LL499RA

Church Street

LL554NF

Old Tanrhiw

LL486SR

Chapel Street

LL499SU

Glaslyn

LL486BQ

Morfa Gaseg

LL499RF

High Street

LL499TE

Glaslyn

LL554NG

Stryd Gwynant

LL486BZ

Garreg Frech

LL486SP

Glaslyn

LL554NH

Bryn Dinas

LL554UU

Glaslyn

LL554LU

Gwynant Street

LL499SW

Tan Y Bryn Terrace

LL554NE

Stryd Gwynant

LL486LQ

Glaslyn

LL499PT

Isgraig

LL499RL

Sunnyside

LL554YF

Stryd Yr Eglwys

LL486LX

Garreg Frech

LL499PU

Isgraig

LL554NJ

Adwyr Nant

LL486AX

Garreg Frech

LL554LT

Smith Street

LL499SY

Tandderwen Terrace

LL554NA

Sygun Terrace

LL499TB

Stepiau

LL499RW

Glanmorfa Terrace

LL486SW

Garreg Frech

LL499RE

Factory Place

LL486AJ

Glaslyn

LL486SE

Glaslyn

LL554NT

Glaslyn

LL486SN

Glaslyn

LL486BH

Morfa Gaseg

LL554NW

Glaslyn

LL486BX

Garreg Frech

LL554YW

Oberon Woods

LL486AZ

Glaslyn

LL486DJ

Glaslyn

LL486DY

Garreg Frech

LL554YQ

Glaslyn

LL499ST

Bryn Eglwys

LL499RB

Market Square

LL486SF

Glaslyn

LL554YG

Bryn Ffynnon

LL499PS

Church Street

LL519BQ

High Street

LL499SP

Glaslyn

LL554YE

Glaslyn

LL499SN

High Street

LL554YN

Garreg Frech

LL486LJ

Glaslyn

LL554YA

Church Street

LL554YB

Stryd Yr Eglwys

LL499TG

Craig Madog

LL486SS

Cwmorthin Road

LL554YJ

Cae Morys

LL554ND

Club Street

LL486DR

Glaslyn

LL486DX

Glaslyn

LL499PY

Craig Madog

LL486SH

Garreg Frech

LL499RD

High Street

LL486DZ

Garreg Frech

LL554YD

Dolfair

LL554NB

Meirion Terrace

LL486SG

Tanlan

LL486RU

Maes-Y-Garth

LL499AQ

Dublin Street

LL499RN

Dublin Street

LL554NS

Glaslyn

LL554YH

Peniel Terrace

LL486DQ

Glaslyn

LL486HR

Glaslyn

LL554YL

Stryd Yr Eglwys

LL486AQ

Glaslyn

LL499TA

Penrhiw Terrace

LL554UY

Caernarfon Road

LL499RH

Dublin Street

LL486BJ

Morfa Gaseg

LL554NR

Glaslyn

LL554LY

Gwynant Street

LL486ST

Garreg Frech

LL499RG

Tan Y Graig

LL486LZ

Glaslyn

LL499TF

Glaslyn

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.