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Gelli-deg & Town

Interactive map displaying Gelli-deg & Town

About

The Town area of Merthyr Tydfil sits where the A470 corridor meets the upper Taff valley. The river runs through the centre and the Merthyr Line railway station provides regular services to Cardiff, linking the town with the Valleys and the capital. Main streets around the market and civic buildings concentrate shops, council services and the bus interchange used for local and regional routes. Streets rise quickly from the centre, reflecting the town’s position on the valley side and the pattern of terraces and short cul-de-sacs created during 19th and 20th century development.

Gelli-deg lies just off the town centre and is primarily residential, with rows of mid-century housing and a cluster of local shops and community facilities. A youth centre and a primary school serve the neighbourhood; the school’s playing field sits within walking distance of the housing. Paths from Gelli-deg link to riverside routes that follow the Taff, used by commuters and walkers moving between the estate and the town. Street layouts and local lanes make the area compact, and day-to-day life is centred on those community points and the transport links into the town.

Area overview

On average Gelli-deg & Town has very high deprivation and very high crime levels, with around 191 crimes per 1,000 residents per year. Approximately 28.4% of homes in this area are social housing provided by a local council or housing association. The average income per household in Gelli-deg & Town is £38,343 per year. Gelli-deg & Town is home to around 6,737 people, with a population density of about 2,080.2 per km2.

Crime rate
10/10
Crimes per 1k residents
191
Deprivation level
9/10
Income level
2/10
Social housing
28.4%
Connectivity
N/A

Area Profile

Gelli-deg & Town Population
6,737
Population density
2,080.2 per km²

Crime

Crime per 1,000 population

Violence and sexual offences
85.94(+134%)
Shoplifting
58.33(+740%)
Anti-social behaviour
55.07(+279%)
Public order
29.98(+236%)
Criminal damage and arson
19(+135%)
Wales average

Demographics

Ethnic groups

British
5,984
88.85%
Other White
457
6.79%
Indian
44
0.65%
Other
39
0.58%
Other Asian
32
0.48%
Total population: 6,735

Economics

Education (age 16+)

No qualifications
1,697
30.94%
Level 4+ (Degree)
1,251
22.81%
Level 2 (GCSEs 9-4)
786
14.33%
Level 3 (A level)
755
13.76%
Level 1 (GCSEs 3-1)
524
9.55%
Total 16+ residents: 5,485

Housing

Housing tenure

Owns outright
833
25.55%
Other social rented
779
23.9%
Owns with a mortgage
616
18.9%
Private landlord or letting agency
564
17.3%
Social rents from council
364
11.17%
Total households: 3,260

Property prices in Gelli-deg & Town

Based on 40 recent sales, the median property price is £140,000 in Gelli-deg & Town area, with individual transactions ranging from £50,000 up to £580,000.

Price distribution per property type (last year)

Price distribution by property type for Gelli-deg & Town in the 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 Gelli-deg & Town over the last year.
TypeSalesMedian
Detached5£359,000
Flats1£112,000
Semi-Detached15£162,000
Terraced19£129,000

10 years median price trend in Gelli-deg & Town

Ten year median sale price trend for each property type in Gelli-deg & Town.

All postcodes in Gelli-deg & Town

CF478NH

Vulcan Buildings

CF481HU

Swansea Road

CF478BE

Post Office Lane

CF481AQ

Woodland Walk

CF481DE

Nantygwenith Street

CF481LW

Heol Llwyn Brain

CF470AZ

Vanguard Yard

CF470DU

Somerset Place

CF470DY

Union Terrace

CF478NG

Brecon Road

CF481AU

Meadow Close

CF484YG

Plymouth Street

CF470DA

Lower Thomas Street

CF481AB

Caer Wern

CF481LR

Heol Llwyn Gollen

CF481LT

Heol Llwyn Deri

CF481UZ

Cyfarthfa

CF478DS

Three Salmon Street

CF478LU

Moriah Street

CF481AY

Dynevor Street

CF481QA

Tai Canol

CF481TQ

Parc Cwm Pant Bach

CF481TR

Brondeg

CF470BY

Lower Thomas Street

CF478AN

Castle Yard

CF478AY

Glebeland Street

CF478PY

Bethesda Street

CF478RS

The Walk

CF481PE

Twyn Carmel

CF481UG

Coronation Terrace

CF478HB

Caedraw Road

CF478HG

Caedraw Road

CF478NF

David Street

CF478SD

Norman Terrace

CF481BN

Chapel Row

CF481HH

Heol Bryn Hebog

CF481LP

Heol Llwyn Drysi

CF481TY

Martin Close

CF481UN

Upper Colliers Row

CF470BA

Church Street

CF478RT

Tudor Street

CF478TW

Mount Terrace

CF481LY

Heol Bryn Selu

CF470AW

John Street

CF470DT

Courtland Terrace

CF478LR

Bethesda Street

CF478PP

Brecon Road

CF481UD

Castle View

CF478AD

Church Street

CF478LH

Dixon Street

CF481LU

Heol Twyn Du

CF470AU

Taff Vale Court

CF470DE

Cross Thomas Street

CF470HE

Queens Road

CF477ZZ

Town

CF481UH

Farm Terrace

CF478AT

Glebeland Street

CF478BS

Victoria Street

CF478BU

Town

CF478LF

Bethesda Street

CF478RU

Tudor Terrace

CF481BZ

Aberdare Road

CF481HS

Swansea Road

CF481UA

The Hollies

CF470AL

Town

CF470SL

Catherines Court

CF478BF

High Street

CF478UX

Castle Yard

CF481ER

Heol Llwyn Brain

CF481NA

Heol Brychan

CF481TT

Meirion Place

CF478UD

High Street

CF478AF

High Street

CF478HN

Caedraw Road

CF478RL

Windsor Place

CF470ES

Queens Road

CF478AP

High Street

Data Sources

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