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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

CF481TS

Danyronen

CF470LQ

The Rink

CF470DH

Milton Place

CF470LS

Cae Mari Dwn

CF478DW

Masonic Street

CF478PW

Llwyfen Street

CF478ZB

Plymouth Street

CF481AG

Ynysfach

CF481LD

Erw Las

CF481LE

Heol Tai Mawr

CF481TU

Six Bells Estate

CF481TW

Brondeg

CF470DR

Courtland Terrace

CF481EE

Heol S O Davies

CF481LG

Heol Parc Maen

CF470AB

John Street

CF477DJ

Plymouth Street

CF478NW

Brychan Place

CF478RW

The Walk

CF481ET

Heol Nantgau

CF470BE

Tramroad Terrace

CF478DP

High Street

CF481AF

Cae'R Wern

CF481HZ

Cyfarthfa Mews

CF478ED

Victoria Street

CF481LS

Heol Llwyn Onnen

CF470BH

Newcastle Street

CF481ND

Heol Tai Mawr

CF478TR

Park

CF481DL

Cae'r Wern

CF481XB

Plymouth Street

CF478JD

Castle Yard

CF481ES

Gelli Deg

CF478EG

Graham Street

CF481EY

Heol Nantgau

CF481YE

Dynevor Street

CF478DF

Tramroad Side North

CF478HR

Morlais Court

CF478EU

Swan Street

CF481HL

Heol Penrhiw

CF470LP

Tai Penyard

CF478HD

Wilson Court

CF478HL

Caedraw Road

CF478SN

Lancaster Villas

CF478UL

Morlais Buildings

CF470AF

Coffins Row

CF470AX

Dan Y Parc

CF470DB

Lower Thomas Street

CF478BG

Castle Street

CF478LD

Avenue De Clichy

CF481HB

Heol Lansbury

CF481DN

Old Winch Fawr Road

CF470ED

Union Street

CF478HF

Caedraw Road

CF481NG

Heol Bryn Padell

CF481RY

Mount Pleasant

CF470SG

Davies Terrace

CF478NL

Brecon Road

CF478TP

Morgan Street

CF481LH

Heol Tai Mawr

CF470AJ

Gwalia Place

CF470EW

Sandbrook Place

CF478DN

High Street

CF478EN

Town

CF478RP

The Walk

CF481AT

Aberdare Road

CF470DF

Alma Street

CF470DL

Coedcae Court

CF470DP

Brynteg Terrace

CF470LJ

Park Place

CF478NB

Cambrian Street

CF478NN

Brecon Road

CF478NX

Penlan View

CF478SA

Stuart Street

CF481DR

Heol S O Davies

CF481PY

Old Winch Fawr Road

CF481UF

Castle View

CF478UF

Roberts Lane

CF478TS

Well Street

CF478YE

High Street

CF478DE

High Street

CF478DG

Market Square

CF481AS

Penderyn Close

CF481BA

Dynevor Street

CF470AS

Church Street

CF478BT

High Street

CF478DA

Market Square

CF478LA

Newfoundland Terrace

CF478LL

Bethesda Street

CF478NE

Upper Edward Street

CF478RN

The Walk

CF481HD

Heol Bryngwyddyl

CF470EE

Church Street

CF481RT

Farm Road

CF478HP

St Tydfils Court

CF478UN

Pontmorlais

CF481DP

Cwm Woods Grove

CF470EB

Union Street

CF470SH

Court Terrace

CF470BW

Church Street

Data Sources

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