Our Data Sources
90, Heol Isaf, Cardiff has 21 entries in the Land Registry, most recently in January 2025 and a single entry in the EPC database dated April 2024.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
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 90, Heol Isaf, Cardiff, we estimate a market value of £720,539 and a rental value of £2,461 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £638,192 and £2,179 per month respectively.
Plot Size
HM Land Registry records the plot of land for 90, Heol Isaf, Cardiff as measuring 638 m2.
That makes it the 18th largest plot in the postcode, where 22 of the 27 other houses have recorded plot data.
Energy Efficiency
90, Heol Isaf, Cardiff has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 18 Apr 2024.
The property is connected to mains gas and has some double glazing. It is heated using a boiler and radiators (mains gas).
Sold Prices
The most recent sale of 90, Heol Isaf, Cardiff completed on 17th January 2025 at £645,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold twice.
Values of comparable properties have dropped by 8.7% over the period since January 2025.
- Sold Jan 2025£645,000
- Sold Oct 2001£245,000
Similar Properties Sold Nearby
Since 2018 120 properties similar to 90, Heol Isaf, Cardiff have sold within a radius of 780 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 11th November 2025, was 17, Plas Y Mynach, Cardiff, CF15 8GB, a freehold house which sold for £640,000.
Read more about house prices in CF15.
- Sold Nov 2025£640,000 | 5 Bed House17, Plas Y Mynach, Cardiff, CF15 8GB17, Plas Y Mynach, Cardiff, CF15 8GB
- Sold Aug 2025£760,000 | 5 Bed House33, St. Philbert Street, Cardiff, CF15 8GW33, St. Philbert Street, Cardiff, CF15 8GW
- Sold Apr 2025£675,000 | 5 Bed House10, Garth Isaf, Cardiff, CF15 8GQ10, Garth Isaf, Cardiff, CF15 8GQ
- Sold Oct 2024£600,000 | 5 Bed House77, Heol Isaf, Cardiff, CF15 8DW77, Heol Isaf, Cardiff, CF15 8DW
- Sold Jul 2024£715,000 | 5 Bed House13, Garth Isaf, Cardiff, CF15 8GQ13, Garth Isaf, Cardiff, CF15 8GQ
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 £617,322, ranging from £413,701 to £1,115,402.
- 88 Heol Isaf
5 Bed House | 19 m | Est. Value: £725,344
- 84 Heol Isaf
5 Bed House | 47 m | Est. Value: £706,009
- 117 Heol Isaf
5 Bed House | 47 m | Est. Value: £792,485
- 46 St. Philbert Street
4 Bed House | 49 m | Est. Value: £551,679
- 94 Heol Isaf
5 Bed House | 51 m | Est. Value: £1,115,402
Location Comparison
Of the 161 addresses on Heol Isaf, Radyr, Cardiff, CF15, 90, Heol Isaf, Cardiff comes out as the 85th largest and the 62nd most expensive in our analysis of the public data.
It is also £294k more expensive than the average property across the CF15 district.
More reading links
Schools Nearby
Public Transport Nearby
- Radyr|800 m away
- Llandaf|1.5 km away
- Danescourt|1.5 km away
Available Internet Speeds
Broadband here reaches ultrafast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












