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Pontprennau and Old St Mellons

Interactive map displaying Pontprennau and Old St Mellons

About

Pontprennau and Old St Mellons is a residential ward located in the northeast of Cardiff. The area is characterised by modern housing developments, particularly in Pontprennau, alongside the older village core of Old St Mellons. It is bordered by the M4 motorway to the north and contains significant areas of green space, including Parc Cefn Onn. The ward is primarily a commuter area with local retail parks serving daily needs.

The community retains a distinct identity with the historic St Mellons Church at its heart. The area includes the notable Parc Cefn Onn, a wooded parkland featuring a network of walking paths and varied plantings. Residential streets are quiet, with a mix of detached and semi-detached homes. The ward's layout separates it from the main urban density of Cardiff, offering a more suburban atmosphere.

Area overview

On average Pontprennau and Old St Mellons has very low deprivation and low crime levels, with around 77 crimes per 1,000 residents per year, about 10% below the Wales average of 86 per 1,000. Approximately 10.1% of homes in this area are social housing provided by a local council or housing association. The average income per household in Pontprennau and Old St Mellons is £62,495 per year. Pontprennau and Old St Mellons is home to around 11,722 people, with a population density of about 1,357.6 per km².

Crime rate
4/10
Crimes per 1k residents
77
Deprivation level
2/10
Income level
8/10
Social housing
10.1%
Connectivity
N/A

Area Profile

Pontprennau and Old St Mellons Population
11,722
Population density
1,357.6 per km²

Crime

Crime per 1,000 population

Violence and sexual offences
36.6(+8%)
Anti-social behaviour
17.66(+36%)
Public order
12.54(+53%)
Criminal damage and arson
8.28(+13%)
Shoplifting
6.82(+6%)
Wales average

Demographics

Ethnic groups

British
8,941
76.28%
Indian
487
4.15%
Other White
434
3.7%
Arab
276
2.35%
Pakistani
201
1.71%
Total population: 11,722

Economics

Education (age 16+)

Level 4 qualifications or above
4,413
47.45%
Level 3 (A level)
1,482
15.93%
Level 2 (GCSEs 9-4)
1,143
12.29%
No qualifications
1,116
12%
Level 1 (GCSEs 3-1)
631
6.78%
Total 16+ residents: 9,301

Housing

Housing tenure

Owns with a mortgage
2,269
46.22%
Owns outright
1,199
24.42%
Private landlord or letting agency
786
16.01%
Other social rented
487
9.92%
Other forms of private rent
75
1.53%
Total households: 4,909

Property prices in Pontprennau and Old St Mellons

Median price£298,500
Price per sq ft£345
Sales (last 12 months)211
Typical range (middle 50%)£241K – £358K

Based on 211 recent sales, the median property price is £298,500 (about £345 per square foot) in Pontprennau and Old St Mellons area, with individual transactions ranging from £125,000 up to £1,340,000.

Prices by property typelast 12 months

Median sale price, median price per square foot, sales count, and percentile information for each property type in Pontprennau and Old St Mellons over the last year.
TypeSalesMedian£/sq ft
Detached68£400,005£351
Semi-Detached57£289,000£374
Terraced69£250,000£337
Flats17£170,000£287

10-year price trendmedian sale price in Pontprennau and Old St Mellons

Sale price

Ten year median sale price trend for each property type in Pontprennau and Old St Mellons.
YearDetachedFlatsSemi-DetachedTerraced
2016£284,995£125,000£181,750£187,998
2017£305,000£130,000£224,995£182,750
2018£320,000£120,000£224,995£179,995
2019£309,498£127,498£219,995£184,995
2020£330,000£137,995£224,995£193,998
2021£336,000£137,000£239,995£220,000
2022£379,973£163,418£271,000£234,998
2023£363,000£165,000£280,000£244,995
2024£370,000£165,000£285,000£250,000
2025£415,000£172,500£289,950£248,498
2026£372,500£167,000£289,500£242,000
Ten year median sale price trend for each property type in Pontprennau and Old St Mellons.

Price per sq ft

Ten year median sale price per square foot trend for each property type in Pontprennau and Old St Mellons.
YearDetachedFlatsSemi-DetachedTerraced
2016£255£199£249£277
2017£271£198£238£283
2018£261£213£263£282
2019£272£223£281£280
2020£270£239£239£288
2021£292£236£299£302
2022£341£294£336£363
2023£344£283£350£353
2024£347£244£334£350
2025£347£284£361£342
2026£359£287£377£352
Ten year median sale price per square foot trend for each property type in Pontprennau and Old St Mellons.

Price distribution by property typelast 12 months

Price distribution by property type for Pontprennau and Old St Mellons in the last year.

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.