Our Data Sources
17, Clos Derwen, Cardiff has 21 entries in the Land Registry, most recently in December 2012 and a single entry in the EPC database dated April 2012.
We combine this information with that 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.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
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 17, Clos Derwen, Cardiff is in very good condition we estimate a sale value of £593,346 and a rental value of £1,818 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £525,535 and a rental value of £1,610 per month.
Plot Size
According to data from HM Land Registry, 17, Clos Derwen, Cardiff sits on a plot of 410 m2.
We have plot size data on 46 out of 46 other houses in the postcode and 17, Clos Derwen, Cardiff sits on the 10th largest plot.
Energy Efficiency
17, Clos Derwen, Cardiff has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 12 Apr 2012.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
According to HM Land Registry, 17, Clos Derwen, Cardiff was last sold on 14th December 2012 for £360,000 and was recorded as a freehold house.
The property has had 2 sales since 1995.
Since December 2012, the market for similar properties has risen by 52.4%.
- Sold Dec 2012£360,000
- Sold Feb 2000£196,950
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 67 sales of properties similar to 17, Clos Derwen, Cardiff within a radius of 540 metres since 2007.
The most recent example is 25, Ninian Road, Cardiff, CF23 5EF, a freehold house which sold for £547,600 on the 30th January 2026.
Read more about house prices in CF23.
- Sold Jan 2026£547,600 | 4 Bed House25, Ninian Road, Cardiff, CF23 5EF25, Ninian Road, Cardiff, CF23 5EF
- Sold Nov 2025£575,000 | 4 Bed House40, Ffordd Cwellyn, Cardiff, CF23 5NB40, Ffordd Cwellyn, Cardiff, CF23 5NB
- Sold Oct 2025£370,000 | 4 Bed House28, Boverton Street, Cardiff, CF23 5ES28, Boverton Street, Cardiff, CF23 5ES
- Sold Oct 2025£440,000 | 4 Bed House35, Egremont Road, Cardiff, CF23 5LP35, Egremont Road, Cardiff, CF23 5LP
- Sold Aug 2025£580,000 | 4 Bed House21, Tydfil Place, Cardiff, CF23 5HP21, Tydfil Place, Cardiff, CF23 5HP
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 £619,856, ranging from £552,998 to £674,952.
- 8 Clos Derwen
4 Bed House | 21 m | Est. Value: £639,904
- 9 Clos Derwen
4 Bed House | 22 m | Est. Value: £642,144
- 10 Clos Derwen
5 Bed House | 25 m | Est. Value: £666,048
- 19 Clos Derwen
4 Bed House | 27 m | Est. Value: £573,699
- 20 Clos Derwen
4 Bed House | 31 m | Est. Value: £648,829
Location Comparison
Clos Derwen, Cardiff, CF23 has a total of 46 addresses. According to our analysis of all the public data, 17, Clos Derwen, Cardiff is the 18th largest and the 17th most expensive property on the street.
When compared to the postcode district it is £201k more expensive than the average property in CF23.
More reading links
Schools Nearby
Public Transport Nearby
- Cathays|1.5 km away
- Heath Low Level|1.9 km away
- Heath High Level|2.0 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.












