Our Data Sources
18, Mathias Close, Cardiff has no records in the Land Registry and a single entry in the EPC database dated April 2022.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 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 18, Mathias Close, Cardiff is in very good condition we estimate a sale value of £290,858 and a rental value of £1,339 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £257,617 and a rental value of £1,186 per month.
Plot Size
According to data from HM Land Registry, 18, Mathias Close, Cardiff sits on a plot of 132 m2.
We have plot size data on 22 out of 22 other houses in the postcode and 18, Mathias Close, Cardiff sits on the 12th largest plot.
Energy Efficiency
18, Mathias Close, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 12 Apr 2022.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 55 sales of properties similar to 18, Mathias Close, Cardiff within a radius of 490 metres since 2018.
The most recent example is 103, Colchester Avenue, Cardiff, CF23 9AY, a freehold house which sold for £250,000 on the 24th April 2026.
Read more about house prices in CF23.
- Sold Apr 2026£250,000 | 3 Bed House103, Colchester Avenue, Cardiff, CF23 9AY103, Colchester Avenue, Cardiff, CF23 9AY
- Sold Feb 2026£252,000 | 3 Bed House13, Firstbrook Close, Cardiff, CF23 9ER13, Firstbrook Close, Cardiff, CF23 9ER
- Sold Feb 2026£247,500 | 3 Bed House87, Ffordd Nowell, Cardiff, CF23 9FB87, Ffordd Nowell, Cardiff, CF23 9FB
- Sold Nov 2025£252,000 | 3 Bed House49, Ffordd Nowell, Cardiff, CF23 9FA49, Ffordd Nowell, Cardiff, CF23 9FA
- Sold Feb 2025£213,000 | 3 Bed House13, Stallcourt Close, Cardiff, CF23 5EB13, Stallcourt Close, Cardiff, CF23 5EB
Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Explore Nearby Properties
The surrounding properties have an average estimated value of £293,477, ranging from £215,209 to £424,727.
- 20 Mathias Close
3 Bed House | 4 m | Est. Value: £279,701
- 16 Mathias Close
3 Bed House | 6 m | Est. Value: £277,007
- 22 Mathias Close
3 Bed House | 9 m | Est. Value: £313,747
- 14 Mathias Close
2 Bed House | 11 m | Est. Value: £248,961
- 10 Mathias Close
3 Bed House | 20 m | Est. Value: £315,183
Location Comparison
Mathias Close, Penylan, Cardiff, CF23 has a total of 22 addresses. According to our analysis of all the public data, 18, Mathias Close, Cardiff is the 10th largest and the 12th most expensive property on the street.
When compared to the postcode district it is £85k less expensive than the average property in CF23.
More reading links
Schools Nearby
Public Transport Nearby
- Cathays|2.1 km away
- Cardiff Queen Street|2.2 km away
- Heath Low Level|2.7 km away
Available Internet Speeds
According to recent data from Ofcom, Superfast Broadband is available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.












