According to data from HM Land Registry, 4, Blaenavon Close, Cardiff sits on a plot of 146 m².

We have plot size data on 5 out of 17 other houses in the postcode and 4, Blaenavon Close, Cardiff sits on the 3rd largest plot.

4, Blaenavon Close, Cardiff has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 04 Jun 2013.

The property is not connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.

According to the Land Registry and our network of Estate Agents, there have been 3 sales of properties similar to 4, Blaenavon Close, Cardiff within a radius of 490 metres over the last 2 years.

The most recent example is 18, Brynmawr Close, Cardiff, CF3 0HJ, a freehold house which sold for £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 Jul 2024£207,000 | 3 Bed House59, Crumlin Drive, Cardiff, CF3 0HB59, Crumlin Drive, Cardiff, CF3 0HB
• Sold Oct 2019£125,000 | 3 Bed House45, Crumlin Drive, Cardiff, CF3 0HB45, Crumlin Drive, Cardiff, CF3 0HB

•Nearby is defined as the radius comprising the nearest 2,000 addresses.

Blaenavon Close, St. Mellons, Cardiff, CF3 has a total of 17 addresses. According to our analysis of all the public data, 4, Blaenavon Close, Cardiff is the 9th largest and the 9th most expensive property on the street.

When compared to the postcode district it is £58k less expensive than the average property in CF3.

• 6.2

  km

  Heath High Level
• 6.2

  km

  Llanishen
• 6.2

  km

  Heath Low Level

According to recent data from Ofcom, ultrafast broadband is available in this area.

According to data from the Environment Agency, the flood risk in this area is considered to be very low.