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St Cattwg

About

St Cattwg ward is located in the southern part of the Caerphilly county borough, encompassing the villages of Cwmfelinfach, Wattsville, and Ynysddu. The area is defined by its position within the Sirhowy Valley, with residential streets following the contours of the surrounding hillsides. The landscape is a mix of older terraced housing and more modern developments, with local amenities centered along the main valley road. Community facilities include primary schools, recreational grounds, and local shops serving the resident population.

The ward's history is closely tied to the former coal mining industry, with the landmark Nine Arches viaduct standing as a remnant of the industrial railway that once served the valley. Large areas of green upland common, such as Mynydd y Grug, rise sharply to the east, providing extensive walking routes with views across the valley. The Sirhowy River flows through the ward, and the surrounding woodland areas are managed for public access and nature conservation.

Area overview

On average St Cattwg has None deprivation and very low crime levels, with around 31 crimes per 1,000 residents per year. Approximately 16.9% of homes in this area are social housing provided by a local council or housing association. The average income per household in St Cattwg is £39,965 per year. St Cattwg is home to around 7,488 people, with a population density of about 620.9 per km2.

Crime rate

1/10

Crimes per 1k residents

Deprivation level

N/A

Income level

3/10

Connectivity

N/A

Area Profile

St Cattwg Population

7,488

Population density

620.9 per km²

Crime

Violence and sexual offences

17.09(-50%)

Anti-social behaviour

5.48(-58%)

Criminal damage and arson

3.61(-51%)

Public order

2.54(-69%)

Vehicle crime

2(-30%)

Wales average

Demographics

British

7,313

97.66%

Other White

0.68%

White and Black Caribbean (mixed)

0.28%

White and Asian (mixed)

0.23%

Other Asian

0.2%

Total population: 7,488

Economics

No qualifications

1,618

26.05%

Level 4 qualifications or above

1,467

23.62%

Level 3 (A level)

1,084

17.46%

Level 2 (GCSEs 9-4)

932

15.01%

Level 1 (GCSEs 3-1)

591

9.52%

Total 16+ residents: 6,210

Housing

Owns outright

1,155

35.57%

Owns with a mortgage

1,049

32.31%

Social rents from council

428

13.18%

Private landlord or letting agency

357

10.99%

Other social rented

166

5.11%

Total households: 3,247

Property prices in St Cattwg

Based on 58 recent sales, the median property price is £200,000 in St Cattwg area, with individual transactions ranging from £78,000 up to £400,000.

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 St Cattwg over the last year.
Type	Sales	Median	5th percentile	25th percentile (Lower quartile)	75th percentile (Upper quartile)	95th percentile
Detached	14	£279,500	£218,950	£235,000	£312,500	£348,000
Semi-Detached	23	£200,000	£153,100	£176,500	£229,250	£274,500
Terraced	21	£168,000	£90,000	£155,000	£178,000	£240,000

10 years median price trend in St Cattwg

All postcodes in St Cattwg

CF828EY

Claerwen

CF828AG

Glanddu Terrace

CF828HN

Royce Close

CF827PQ

Green Hill Close

CF828BW

Pengam Road

CF828HZ

Oaks End Close

CF828FD

St Cattwgs Avenue

CF828HR

Newton Close

CF828DH

Rhos Avenue

CF828ES

Aneurin Bevan Avenue

CF828DW

Roman Ridge

NP123XN

Station Cottages

CF828EZ

Heol Cattwg

CF828FX

Rectory Road

CF827TD

Clos Mynach

CF828BU

Gwaun Fro

CF828AZ

Churchfield Close

CF828BH

Duffryn Gardens

NP123XJ

Pengam Street

NP123XR

Greenmeadow Bungalows

CF827ST

South Road

CF828ED

Yew Tree Cottages

CF827GR

Cae Ffynnon

CF828BE

Woodside

CF828HE

Tylagwyn

NP123XE

Cardiff Road

CF827FS

Fir Tree Cottages

CF828DX

Legions Way

CF828FY

Gelligaer Road

CF828DL

Tair Heol

CF828HB

Tynant

CF828EP

Dan Y Gaer Road

CF828BX

Pengam Road

CF828HY

Heol Cattwg

NP123XH

Pengam Street

NP123XP

Hanbury Street

CF828HJ

Barry Close

CF827TE

Pen Y Graig

CF828GE

Bryn Y Gaer Werdd

CF828EH

Heol Edward Lewis

CF827FY

Gelliargwellt Road

CF828EG

Haman Place

CF828GA

Copper Beeches

CF828AR

Asquith Street

NP123XF

The Square

CF828DD

Bryncoed Terrace

CF827GA

Cefn Llwynau Street

CF828LA

Sorrel Drive

CF827TJ

Clos Cae Rhos

CF827GD

Brynheulog Street

CF828FB

Heol Y Waun

CF828AJ

Horner Street

CF828HF

Gelliron

CF827FZ

Gelliargwellt Road

CF827TP

Llyswen

CF828LE

Downey Grove

CF828DN

Duffryn Close

CF828FA

Heol Penallta

CF828EL

Greenhill Place

CF827FW

Trosnant Crescent

CF828EU

Penywrlod

CF828DU

Hadrians Close

CF827TF

Bryn Awelon

CF828FE

St Cattwgs Avenue

CF827SW

West Road

Data Sources

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

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