Detached
£386,250
66% above the Pentwyn average
6.6% of sales
What is the average house price in Pentwyn? £233,191
The average house price in Pentwyn is £233,191, based on 87 homes sold in the 12 months to September 2026. Prices are up 3.4% (£7,716) on a year earlier.
- 1 year change
- +3.4%
- Sold in 12 months
- 87
- Data up to
- September 2026
Sold prices from HM Land Registry, not asking prices. How we calculate this
How much does each type of property cost in Pentwyn?
Average sold price by property type, and each type's share of recent sales.
Semi-detached
£248,840
7% above the Pentwyn average
26.5% of sales
Terraced
£227,130
3% below the Pentwyn average
50.3% of sales
Flats
£166,866
28% below the Pentwyn average
16.6% of sales
Are house prices in Pentwyn going up or down?
House prices in Pentwyn are rising: up 3.4% (£7,716) over the past year. Over the past 10 years, prices are up 51.5% (£79,221).
Past 12 months
+3.4%
+£7,716From £225,475 to £233,191
£235,226£225,332
Past 10 years
+51.5%
+£79,221From £153,970 to £233,191
£233,191£153,970
Quick answers for Pentwyn
9 key facts at a glance.
When did prices peak?
£291,000
Highest average, reached in May 2026
How many homes sold?
87
Recorded so far for the 12 months to September 2026
What sells most often?
Terraced houses
50.3% of recent sales
What is the most common price range?
£200k - £300k
53.6% of sales
How many people live in Pentwyn?
8,057
11,107 people per square mile · Very High (Census 2021)
Population density is Very High, on a scale from Very Low to Very High.
Usual residents, including communal establishments.
How many households are in Pentwyn?
3,178
4,381 households per square mile · Very High (Census 2021)
Household density is Very High, on a scale from Very Low to Very High.
Occupied households, not communal establishments.
How much green space is in Pentwyn?
13 m² per resident
Less green space per resident than 83% of areas in England and Wales. That's about 1.8 football pitches for every 1,000 residents.
5.5% of the area · 1 public park. Parks, playing fields, allotments and other public green space, not counting golf courses. Contains OS data © Crown copyright and database right 2026.
What is the crime rate in Pentwyn?
73 crimes per 1,000 residents
High · −21.6% on the previous year · 12 months to September 2026
Crime rate is High, on a scale from Very Low to Very High.
Contains public sector information licensed under the Open Government Licence v3.0. Source: police.uk.
How does Pentwyn rank?
26th most expensive area of Cardiff.
Compared with 36 areas
What are the most expensive homes sold in Pentwyn?
The highest recorded sale prices in Pentwyn, from HM Land Registry.
How do house prices in Pentwyn compare with nearby areas?
Pentwyn compared with the 6 nearest other areas in Cardiff.
Pentwyn vs Llanedeyrn
- Pentwyn
- £233,191
- Llanedeyrn
- £180,164−£53,027
Open comparison
Pentwyn vs Llanrumney
- Pentwyn
- £233,191
- Llanrumney
- £227,313−£5,878
Open comparison
Pentwyn vs Cyncoed
- Pentwyn
- £233,191
- Cyncoed
- £536,344+£303,153
Open comparison
Pentwyn vs Pontprennau
- Pentwyn
- £233,191
- Pontprennau
- £310,085+£76,894
Open comparison
Pentwyn vs Old St. Mellons
- Pentwyn
- £233,191
- Old St. Mellons
- £344,566+£111,375
Open comparison
Pentwyn vs Rumney
- Pentwyn
- £233,191
- Rumney
- £243,790+£10,599
Open comparison
Thinking of buying in Pentwyn?
There's a lot to think about. Whether it's a home to live in or a buy-to-let, our free checklist walks you through what to check before you make an offer.
What to check before you buyWhere does this data come from?
Price information is from HM Land Registry, location boundaries are from OpenStreetMap, and households and population are from Nomis Census 2021 postcode estimates (21 March 2021). Parks and green space are from OS Open Greenspace. Contains OS data © Crown copyright and database right 2026. Crime is from police.uk street-level data. Contains public sector information licensed under the Open Government Licence v3.0. Source: police.uk.
Last updated 6 November 2026 at 00:25 with the latest Land Registry data (September 2026). The Pentwyn dataset covers 309 postcodes.
Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.