Our Data Sources
11, Clos Alyn, Cardiff has a single entry in the Land Registry from November 2019 and a single entry in the EPC database dated September 2011.
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
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 11, Clos Alyn, Cardiff, we estimate a market value of £363,778 and a rental value of £1,843 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £322,203 and £1,632 per month respectively.
Plot Size
HM Land Registry records the plot of land for 11, Clos Alyn, Cardiff as measuring 306 m2.
That makes it the 3rd largest plot in the postcode, where all 25 other houses have recorded plot data.
Energy Efficiency
11, Clos Alyn, Cardiff has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 09 Sep 2011.
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
The most recent sale of 11, Clos Alyn, Cardiff completed on 22nd November 2019 at £281,000 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 48.6% over the period since November 2019.
- Sold Nov 2019£281,000
Similar Properties Sold Nearby
Since 2017 207 properties similar to 11, Clos Alyn, Cardiff have sold within a radius of 610 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 30th April 2026, was 9, Clos Gwy, Cardiff, CF23 8LH, a freehold house which sold for £200,000.
Read more about house prices in CF23.
- Sold Apr 2026£200,000 | 4 Bed House9, Clos Gwy, Cardiff, CF23 8LH9, Clos Gwy, Cardiff, CF23 8LH
- Sold Apr 2026£351,000 | 4 Bed House29, Clos Gwy, Cardiff, CF23 8LH29, Clos Gwy, Cardiff, CF23 8LH
- Sold Mar 2026£295,000 | 3 Bed House5, Youghal Close, Cardiff, CF23 8RN5, Youghal Close, Cardiff, CF23 8RN
- Sold Nov 2025£301,000 | 3 Bed House23, Youghal Close, Cardiff, CF23 8RN23, Youghal Close, Cardiff, CF23 8RN
- Sold Oct 2025£390,000 | 4 Bed House15, Clos Nant Ddu, Cardiff, CF23 8LF15, Clos Nant Ddu, Cardiff, CF23 8LF
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 £303,776, ranging from £254,989 to £344,332.
- 9 Clos Alyn
3 Bed House | 9 m | Est. Value: £334,504
- 13 Clos Alyn
3 Bed House | 12 m | Est. Value: £333,877
- 15 Clos Alyn
3 Bed House | 26 m | Est. Value: £321,913
- 1 Sindercombe Close
3 Bed House | 30 m | Est. Value: £344,332
- 5 Clos Alyn
3 Bed House | 31 m | Est. Value: £319,763
Location Comparison
Of the 25 addresses on Clos Alyn, Pontprennau, Cardiff, CF23, 11, Clos Alyn, Cardiff comes out as the 3rd largest and the most expensive in our analysis of the public data.
It is also £16k less expensive than the average property across the CF23 district.
More reading links
Schools Nearby
Public Transport Nearby
- Llanishen|2.8 km away
- Lisvane & Thornhill|3.2 km away
- Heath High Level|3.4 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.












