10 Heol Isaf, Radyr, Cardiff, CF15 8AL is a freehold detached property built between 1900-1929. The property offers approximately 2,637 square feet of living space. In this location, properties of similar size usually have six bedrooms.

The estimated current market value of the property is £799,040 , which equates to approximately £303 per square foot. It was last sold on 22 Mar 2021 for £650,000. Since then, the value has increased by £149,040, representing a 22.9% increase, or approximately 4.8% per year.

The current estimated value of £799,040 is:

  • 31.4% higher than the average property price on Heol Isaf
  • 8.1% lower than the average in the CF15 8AL postcode area
  • and 137.0% higher than the average price for Cardiff as a whole

Based on EPC inspection history, this property has been mostly owner-occupied (3 out of 3 inspections). This suggests the property has typically been lived in by its owners, which often reflects longer-term residency and more consistent maintenance.

At the most recent EPC inspection on 8 September 2025, the property was recorded as owner-occupied.

View sold house prices in CF15 8AL

Building approximate location

About Property

Type
Detached House
Built
1900-1929
Interior Size
2637 sq ft
Tenure
Freehold
Price (estimate)
£799,040
Price Per sq ft (estimate)
£303
Bedroom Count (estimate)
6 bedrooms

EPC Summary

10 Heol Isaf, Radyr, Cardiff, CF15 8AL has an Energy Performance Certificate (EPC) rating of C, based on the latest assessment carried out on 8 Sep 2025.

This property uses a gas-fired boiler and radiators, connected to the mains gas supply, as its main heating source. Hot water is provided from main heating system. The windows are mostly multiple glazing.

The previous EPC assessment was conducted on 26 Jun 2019, when the property was rated E. Since then, the rating has improved to C, with the energy efficiency score increasing by 56.5%.

Since the previous assessment, several changes were observed:

  • The hot water system was changed from from main system, no cylinder thermostat to from main system, with its energy efficiency improving from poor to good.
  • The roof construction or insulation changed from pitched, 300 mm loft insulation to pitched, 200 mm loft insulation, changing energy efficiency from very good to good.
  • The wall energy efficiency improving from average to good, with the construction or insulation remaining cavity wall, filled cavity.
  • The windows were upgraded from single glazed to mostly multiple glazing.
  • The lighting was updated from low energy lighting in 22% of fixed outlets to excellent lighting efficiency, with efficiency improving from poor to very good.
Heating Type
Boiler and radiators, mains gas
Good
Hot Water
From main system
Good
Roof
Pitched, 200 mm loft insulation
Good
Walls
Cavity wall, filled cavity
Good
Windows
Mostly multiple glazing
Average
Lighting
Excellent lighting efficiency
Very Good

Sale History

Today
£799,040
streetscan.co.uk estimate
+23 %
22 Mar 2021
£650,000
Leasehold

Area Insights

Similar Properties Sold Nearby

1C Heol Isaf, Radyr, Cardiff, CF15 8AF
rooms: 7
size: 2282 sq ft
sale price: £360,000
sale date: 12 Feb 2016
Hafod Y Ddinas Heol Isaf, Radyr, Cardiff, CF15 8DX
rooms: 8
size: 2917 sq ft
sale price: £28,500
sale date: 21 Aug 1998

Data Sources

The property at 10 Heol Isaf, Radyr, Cardiff, CF15 8AL appears once in the Land Registry records, with the transaction recorded on 22 Mar 2021. It also has three Energy Performance Certificates (EPC) entries, the earliest dating back to 8 Sep 2025. We use this data, to estimate the property's characteristics and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0.
This website is not affiliated with or endorsed by HM Land Registry or DLUHC.


Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure the information provided on this website is current and accurate; however, no warranties or representations are made as to its completeness or accuracy. StreetScan.co.uk expressly disclaims any and all liability for any loss, damage, or expense arising directly or indirectly from the use of, or reliance upon, such information.
↑