Our Data Sources
Thornton Dene, Cardiff has a single entry in the Land Registry from July 2007 and a single entry in the EPC database dated May 2024.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low accuracy.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For Thornton Dene, Cardiff, we estimate a market value of £1,328,208 and a rental value of £4,017 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £1,176,413 and £3,558 per month respectively.
Plot Size
HM Land Registry records the plot of land for Thornton Dene, Cardiff as measuring 840 m2.
That makes it the 3rd largest plot in the postcode, where all 4 other houses have recorded plot data.
Energy Efficiency
Thornton Dene, Cardiff has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 23 May 2024.
The property is connected to mains gas and has partial double glazing. It is heated using a boiler and radiators (mains gas).
Sold Prices
The most recent sale of Thornton Dene, Cardiff completed on 17th July 2007 at £759,950 and was recorded by HM Land Registry as a freehold house.
Since 1995 this is the property's only sale.
Values of comparable properties have risen by 33.2% over the period since July 2007.
- Sold Jul 2007£759,950
Similar Properties Sold Nearby
Since 2016 9 properties similar to Thornton Dene, Cardiff have sold within a radius of 760 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 15th August 2025, was 13, Mill Road, Cardiff, CF14 0XA, a freehold house which sold for £1,375,000.
Read more about house prices in CF14.
- Sold Aug 2025£1,375,000 | 5 Bed House13, Mill Road, Cardiff, CF14 0XA13, Mill Road, Cardiff, CF14 0XA
- Sold May 2025£1,225,000 | 5 Bed House18, Millwood, Cardiff, CF14 0TL18, Millwood, Cardiff, CF14 0TL
- Sold May 2025£1,275,000 | 5 Bed House4, Coed Pengam, Cardiff, CF14 0AU4, Coed Pengam, Cardiff, CF14 0AU
- Sold Mar 2023£1,200,000 | 5 Bed House5, Coed Pengam, Cardiff, CF14 0AU5, Coed Pengam, Cardiff, CF14 0AU
- Sold Aug 2022£1,100,000 | 5 Bed House21, Millwood, Cardiff, CF14 0TL21, Millwood, Cardiff, CF14 0TL
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £719,760, ranging from £268,385 to £1,675,951.
- Wellington House
5 Bed House | 16 m | Est. Value: £1,037,890
- 7 Grenville Lisvane Road
5 Bed House | 25 m | Est. Value: £755,902
- 1A Mill Road
5 Bed House | 28 m | Est. Value: £855,842
- Carreg Coch
5 Bed House | 31 m | Est. Value: £833,269
- Rise Cottage
3 Bed House | 55 m | Est. Value: £500,810
Location Comparison
Of the 57 addresses on Lisvane Road, Llanishen, Cardiff, CF14, Thornton Dene, Cardiff comes out as the 3rd largest and the 3rd most expensive in our analysis of the public data.
It is also £893k more expensive than the average property across the CF14 district.
More reading links
Schools Nearby
Public Transport Nearby
- Llanishen|100 m away
- Lisvane & Thornhill|1.3 km away
- Ty Glas|1.7 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












