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Thornhill

Interactive map displaying Thornhill

About

Thornhill is a residential suburb located in the north of Cardiff. The area is characterised by housing estates built primarily from the 1970s onward, offering a mix of detached and semi-detached homes. It is situated near the M4 motorway, providing direct transport links to the city centre and beyond.

The community is served by local schools and shops, with a focus on family living. A notable local feature is the large, undeveloped area known as the Northern Meadows, which borders the neighbourhood and provides open green space for walking and recreation.

Area overview

On average Thornhill has None deprivation and very low crime levels, with around 21 crimes per 1,000 residents per year. Approximately 4.4% of homes in this area are social housing provided by a local council or housing association. The average income per household in Thornhill is £58,165 per year. Thornhill is home to around 5,702 people, with a population density of about 4,433.7 per km2.

Crime rate
1/10
Crimes per 1k residents
21
Deprivation level
N/A
Income level
10/10
Social housing
4.4%
Connectivity
N/A

Area Profile

Thornhill Population
5,702
Population density
4,433.7 per km²

Crime

Crime per 1,000 population

Violence and sexual offences
8.07(-76%)
Shoplifting
5.61(-13%)
Vehicle crime
2.63(-8%)
Public order
2.28(-72%)
Criminal damage and arson
2.28(-69%)
Wales average

Demographics

Ethnic groups

British
5,077
89.07%
Other White
153
2.68%
Pakistani
68
1.19%
Arab
55
0.96%
Indian
54
0.95%
Total population: 5,700

Economics

Education (age 16+)

Level 4+ (Degree)
2,202
46.67%
Level 3 (A level)
765
16.21%
Level 2 (GCSEs 9-4)
614
13.01%
No qualifications
491
10.41%
Level 1 (GCSEs 3-1)
357
7.57%
Total 16+ residents: 4,718

Housing

Housing tenure

Owns outright
1,003
39.8%
Owns with a mortgage
911
36.15%
Private landlord or letting agency
430
17.06%
Other social rented
76
3.02%
Shared ownership
35
1.39%
Total households: 2,520

Property prices in Thornhill

Based on 95 recent sales, the median property price is £266,500 in Thornhill area, with individual transactions ranging from £85,000 up to £580,000.

Price distribution per property type (last year)

Price distribution by property type for Thornhill 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 Thornhill over the last year.
TypeSalesMedian
Semi-Detached32£283,250
Terraced42£245,000
Detached16£480,000
Flats5£150,000

10 years median price trend in Thornhill

Ten year median sale price trend for each property type in Thornhill.

All postcodes in Thornhill

CF149LB

Heol Hir

Data Sources

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