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Treharris & Trelewis

Interactive map displaying Treharris & Trelewis

About

Treharris and Trelewis are neighbouring settlements in the Taff Bargoed Valley. The area is defined by its industrial past, with the Trelewis Drift coal mine once a central employer. The landscape is marked by the large, grassed-over spoil tip known locally as the 'Trecatti tip', a prominent green hill that now offers walking routes and views across the valley. The communities are connected by local roads and residential streets that follow the contours of the hillsides.

The area is home to Taff Bargoed Park, a large country park created on reclaimed colliery land, featuring a lake and extensive paths. The former railway line through the valley is now part of the Taff Trail, a long-distance route for cyclists and walkers. Daily life centres around local amenities like Treharris Square, with its war memorial and public houses. The distinctive silhouette of the old winding wheel from the Trelewis Drift mine remains preserved on the hillside as a local landmark.

Area overview

On average Treharris & Trelewis has None deprivation and moderate crime levels, with around 43 crimes per 1,000 residents per year. Approximately 10.7% of homes in this area are social housing provided by a local council or housing association. The average income per household in Treharris & Trelewis is £44,005 per year. Treharris & Trelewis is home to around 8,681 people, with a population density of about 880.2 per km2.

Crime rate
3/10
Crimes per 1k residents
43
Deprivation level
N/A
Income level
6/10
Social housing
10.7%
Connectivity
N/A

Area Profile

Treharris & Trelewis Population
8,681
Population density
880.2 per km²

Crime

Crime per 1,000 population

Violence and sexual offences
21.54(-37%)
Anti-social behaviour
8.87(-32%)
Public order
5.41(-34%)
Criminal damage and arson
4.84(-34%)
Vehicle crime
4.61(+61%)
Wales average

Demographics

Ethnic groups

British
8,414
96.96%
Other White
72
0.83%
Chinese
31
0.36%
Irish
24
0.28%
Other Mixed or Multiple ethnic groups
22
0.25%
Total population: 8,678

Economics

Education (age 16+)

Level 4+ (Degree)
1,857
26.04%
No qualifications
1,701
23.85%
Level 3 (A level)
1,247
17.49%
Level 2 (GCSEs 9-4)
1,053
14.77%
Level 1 (GCSEs 3-1)
701
9.83%
Total 16+ residents: 7,131

Housing

Housing tenure

Owns outright
1,434
38.69%
Owns with a mortgage
1,269
34.24%
Private landlord or letting agency
442
11.93%
Other social rented
335
9.04%
Social rents from council
134
3.62%
Total households: 3,706

Property prices in Treharris & Trelewis

Based on 86 recent sales, the median property price is £140,500 in Treharris & Trelewis area, with individual transactions ranging from £45,000 up to £900,000.

Price distribution per property type (last year)

Price distribution by property type for Treharris & Trelewis 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 Treharris & Trelewis over the last year.
TypeSalesMedian
Detached18£338,000
Terraced50£118,250
Semi-Detached18£145,000

10 years median price trend in Treharris & Trelewis

Ten year median sale price trend for each property type in Treharris & Trelewis.

All postcodes in Treharris & Trelewis

CF465BA

Sunny Bank

CF466DF

Mandeg

CF466AE

High Street

CF465PB

Tai Yn Y Banwen

CF466AN

Richards Terrace

CF465RZ

Heol Nant Caiach

CF466AW

Field Street

CF465NW

Beech Grove

CF465DF

Bryngerwn Cottages

CF465DN

Caerphilly Road

CF466BB

Brondeg

CF466DH

Caiach Terrace

CF465NE

Susannah Place

CF465LF

Edward Street

CF465NN

The Avenue

CF466AU

Priscilla Terrace

CF466AA

Glyn Bargoed Road

CF465RU

Melin Caiach

CF465LY

Blackbrook

CF465EF

Tram Road Side

CF465PG

Goitre-Coed Road

CF465RJ

Park Crescent

CF465DS

Old Post Office Lane

CF465RL

Twynygarreg

CF465BE

Goitre Coed Road

CF465HY

Glan Yr Afon

CF465HD

Railway Terrace

CF465AT

Woodland Villas

CF466AD

High Street

CF465EN

Wingfield Rise

CF465HX

Parc Wenallt

CF465PP

The Hollies

CF465NA

Fernhill Terrace

CF466EQ

Highfield Rise

CF465RF

Brynteg

CF465AF

Gresham Place

CF465PL

The Hollies

CF465EL

Fox Street

CF465HQ

The Oaks

CF465NR

Edwards Ville

CF465AA

Thomas Street

CF466AJ

Glynbargoed Close

CF465LL

Victoria Street

CF465NZ

Manor Court

CF466DE

West View Crescent

CF465HP

Webster Street

CF466AR

Edwards Terrace

CF465BW

Fir Tree Drive

CF465PD

Susannah Place

CF465PS

John Street

CF465BL

Westwood Drive

CF465LG

Thomas Street

CF466AG

Railway Street

CF465LB

Ty Llwyd Parc Estate

CF466BP

Beechcroft

CF466BE

Maen Ganol

CF465BS

Pentwyn Road

CF466EE

Manor View

CF465BB

Goitre Coed Road

CF465DG

Victoria Terrace

CF465ER

Perrott Street

CF465PU

Cardiff Road

CF465NL

Nant Ddu Terrace

CF466BA

Ael Y Bryn

CF466EZ

Primrose Walk

CF465AP

Woodland Crescent

CF465EP

Cardiff Road

CF465PA

Treharne Terrace

CF465RE

Brynteg

CF465PF

Goitre-Coed Road

CF466DP

Efail Shingrig

CF465AR

Woodlands Crescent

CF465AJ

Brecon Walk

CF465NF

Rock View

CF465LA

Ty Llwyd Parc Estate

CF465RP

Heather Court

CF465NH

The Villas

CF465LQ

The Ferns

CF465LJ

Claremont Drive

CF465DB

Wingfield Terrace

CF465RY

Heol Coflorna

CF465NS

Edwardsville

CF465LS

Pleasant View

CF466AF

Bontnewydd Terrace

CF465AL

The Gardens

CF465NB

Cardiff Road

CF466DW

Tydfil Close

CF465HT

Cilhaul

CF465LH

Mary Street

CF465RG

Oaklands Terrace

CF465RH

The Park

CF465BG

Rose Hill Cottages

CF465DL

Brynheulog Cottages

CF465NP

Windsor Road

CF466DN

Gelligaer Road

CF466BT

Park Terrace

CF466BL

Captains Hill

CF465NY

Treharne Road

CF465DW

Leigh Terrace

CF465HG

Forest Road

Data Sources

All data is sourced from official UK government agencies and public datasets. Last updated: 16/05/2026.