Our Data Sources
18, Blaenavon Close, Cardiff has a single entry in the Land Registry from July 2022 and a single entry in the EPC database dated March 2024.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low accuracy.
Price Range & Condition
In very good condition, we estimate 18, Blaenavon Close, Cardiff would be worth £209,238, with a potential rental value of £1,253 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £185,325, with a rental value of £1,110 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
18, Blaenavon Close, Cardiff occupies a 138 m2 plot as recorded by HM Land Registry.
Of the 17 other houses in this postcode, 5 have recorded plot sizes, and this one ranks as the 5th largest.
Energy Efficiency
18, Blaenavon Close, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 19 Mar 2024.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
18, Blaenavon Close, Cardiff last changed hands on 15th July 2022, selling for £187,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has risen by 7.2% since July 2022.
- Sold Jul 2022£187,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 41 sales of comparable properties within 500 metres of 18, Blaenavon Close, Cardiff across the last 2 years.
Most recently, 18, Brynmawr Close, Cardiff, CF3 0HJ, a freehold house, sold at £195,000 on the 3rd October 2025.
Read more about house prices in CF3.
- Sold Oct 2025£195,000 | 3 Bed House18, Brynmawr Close, Cardiff, CF3 0HJ18, Brynmawr Close, Cardiff, CF3 0HJ
- Sold Jan 2023£215,000 | 3 Bed House3, Brynmawr Close, Cardiff, CF3 0HJ3, Brynmawr Close, Cardiff, CF3 0HJ
- Sold Oct 2021£146,000 | 3 Bed House36, Rogerstone Close, Cardiff, CF3 0EA36, Rogerstone Close, Cardiff, CF3 0EA
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks 18, Blaenavon Close, Cardiff as the 7th largest and the 7th most expensive of the 17 addresses on Blaenavon Close, St. Mellons, Cardiff, CF3.
Against the CF3 postcode district average, it is £59k less expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Heath High Level|6.2 km away
- Llanishen|6.2 km away
- Heath Low Level|6.2 km away
Available Internet Speeds
Ofcom's latest figures show ultrafast broadband available in this area.
According to recent data from Ofcom, Ultrafast Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
