Our Data Sources
9, Clos William, Cardiff has no recent1 records in the Land Registry and a single entry in the EPC database dated November 2025.
We combine this information with public data 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.
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 9, Clos William, Cardiff is in very good condition we estimate a sale value of £421,697 and a rental value of £1,829 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £373,503 and a rental value of £1,620 per month.
Plot Size
According to data from HM Land Registry, 9, Clos William, Cardiff sits on a plot of 500 m2.
We have plot size data on 18 out of 18 other houses in the postcode and 9, Clos William, Cardiff sits on the 4th largest plot.
Energy Efficiency
9, Clos William, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 28 Nov 2025.
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, 9, Clos William, Cardiff was last sold on 15th July 2005 for £160,000 and was recorded as a freehold house.
The property has only had this single sale since 1995.
- Sold Jul 2005£160,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 229 sales of properties similar to 9, Clos William, Cardiff within a radius of 660 metres since 2017.
The most recent example is 13, Clos William, Cardiff, CF14 6QJ, a freehold house which sold for £418,000 on the 6th March 2026.
Read more about house prices in CF14.
- Sold Mar 2026£418,000 | 3 Bed House13, Clos William, Cardiff, CF14 6QJ13, Clos William, Cardiff, CF14 6QJ
- Sold Oct 2025£290,000 | 3 Bed House17, Clos Mabon, Cardiff, CF14 6RN17, Clos Mabon, Cardiff, CF14 6RN
- Sold Sep 2025£400,000 | 3 Bed House47, Heol Erwin, Cardiff, CF14 6QQ47, Heol Erwin, Cardiff, CF14 6QQ
- Sold Jul 2025£420,000 | 3 Bed House50, Heol Uchaf, Cardiff, CF14 6SQ50, Heol Uchaf, Cardiff, CF14 6SQ
- Sold Feb 2025£385,000 | 3 Bed House50, Heol Erwin, Cardiff, CF14 6QR50, Heol Erwin, Cardiff, CF14 6QR
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 £387,051, ranging from £290,661 to £474,919.
- 8 Clos William
3 Bed House | 22 m | Est. Value: £390,221
- 56 Heol Briwnant
4 Bed House | 27 m | Est. Value: £406,860
- 54 Heol Briwnant
4 Bed House | 28 m | Est. Value: £412,058
- 52 Heol Briwnant
4 Bed House | 29 m | Est. Value: £408,741
- 11 Clos William
3 Bed House | 31 m | Est. Value: £352,942
Location Comparison
Clos William, Cardiff, CF14 has a total of 18 addresses. According to our analysis of all the public data, 9, Clos William, Cardiff is the 7th largest and the 4th most expensive property on the street.
When compared to the postcode district it is £30k more expensive than the average property in CF14.
More reading links
Schools Nearby
Public Transport Nearby
- Rhiwbina|1.3 km away
- Birchgrove|1.4 km away
- Whitchurch (Cardiff)|1.6 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.
