Our Data Sources
1, Clos Yr Onnen, Cardiff has a single entry in the Land Registry from June 2022 and a single entry in the EPC database dated June 2022.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 out of 5 and is considered of medium 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 1, Clos Yr Onnen, Cardiff, we estimate a market value of £426,472 and a rental value of £1,921 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £377,733 and £1,702 per month respectively.
Plot Size
HM Land Registry records the plot of land for 1, Clos Yr Onnen, Cardiff as measuring 302 m2.
That makes it the 3rd largest plot in the postcode, where all 5 other houses have recorded plot data.
Energy Efficiency
1, Clos Yr Onnen, Cardiff has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 20 Jun 2022.
The property is not connected to mains gas and has high performance glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 1, Clos Yr Onnen, Cardiff completed on 30th June 2022 at £361,995 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 dropped by 15.4% over the period since June 2022.
- Sold Jun 2022£361,995
Similar Properties Sold Nearby
Over the past 2 years 3 properties similar to 1, Clos Yr Onnen, Cardiff have sold within a radius of 2.2 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 27th June 2025, was 110, Rhodfa Ieuan, Cardiff, CF5 6GH, a freehold house which sold for £319,995.
Read more about house prices in CF5.
- Sold Jun 2025£319,995 | 4 Bed House110, Rhodfa Ieuan, Cardiff, CF5 6GH110, Rhodfa Ieuan, Cardiff, CF5 6GH
- Sold May 2025£429,995 | 4 Bed House68, Gwern Gwynfael, Cardiff, CF5 6GE68, Gwern Gwynfael, Cardiff, CF5 6GE
- Sold Jan 2025£424,995 | 4 Bed House70, Gwern Gwynfael, Cardiff, CF5 6GE70, Gwern Gwynfael, Cardiff, CF5 6GE
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 5 addresses on Clos Yr Onnen, Capel Llanilltern, Cardiff, CF5, 1, Clos Yr Onnen, Cardiff comes out as the largest and the most expensive in our analysis of the public data.
It is also £118k more expensive than the average property across the CF5 district.
More reading links
Schools Nearby
Public Transport Nearby
- 4.6kmRadyr
- 4.9kmTaffs Well
- 5.5kmPontyclun
Risk of Flooding
The flood risk here is rated very low, based on Environment Agency data.












