Our Data Sources
20, Gwern Catherine, Cardiff has a single entry in the Land Registry from March 2021 and a single entry in the EPC database dated February 2021.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
Price Range & Condition
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 20, Gwern Catherine, Cardiff is in very good condition we estimate a sale value of £326,995 and a rental value of £1,732 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £289,624 and a rental value of £1,534 per month.
Plot Size
According to data from HM Land Registry, 20, Gwern Catherine, Cardiff sits on a plot of 179 m2.
We have plot size data on 41 out of 46 other houses in the postcode and 20, Gwern Catherine, Cardiff sits on the 8th largest plot.
Energy Efficiency
20, Gwern Catherine, Cardiff has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 23 Feb 2021.
The property is not connected to mains gas and has high performance glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
According to HM Land Registry, 20, Gwern Catherine, Cardiff was last sold on 30th March 2021 for £284,995 and was recorded as a freehold house.
The property has only had this single sale since 1995.
Since March 2021, the market for similar properties has risen by 7.8%.
- Sold Mar 2021£284,995
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 3 sales of properties similar to 20, Gwern Catherine, Cardiff within a radius of 2.1 kilometres over the last 2 years.
The most recent example is 30, Gwern Catherine, Cardiff, CF5 6GD, a freehold house which sold for £310,000 on the 16th December 2025.
Read more about house prices in CF5.
- Sold Dec 2025£310,000 | 3 Bed House30, Gwern Catherine, Cardiff, CF5 6GD30, Gwern Catherine, Cardiff, CF5 6GD
- Sold Dec 2024£300,000 | 3 Bed House27, Gwern Catherine, Cardiff, CF5 6GD27, Gwern Catherine, Cardiff, CF5 6GD
- Sold Apr 2024£305,000 | 3 Bed House7, Gwern Catherine, Cardiff, CF5 6GD7, Gwern Catherine, Cardiff, CF5 6GD
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Gwern Catherine, Capel Llanilltern, Cardiff, CF5 has a total of 46 addresses. According to our analysis of all the public data, 20, Gwern Catherine, Cardiff is the 2nd largest and the 11th most expensive property on the street.
When compared to the postcode district it is £23k more expensive than the average property in CF5.
More reading links
Schools Nearby
Public Transport Nearby
- 4.5kmRadyr
- 4.6kmTaffs Well
- 5.6kmPontyclun
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be very low.












