139, Heol Isaf
139, Heol Isaf
Description & Estimates
Public records show 139, Heol Isaf, Cardiff to be a mid-century freehold house with 1,926 ft2 of internal area, sitting on a 1,164 m2 plot.
In this area, houses of this size normally have 5 bedrooms with a garden.
139, Heol Isaf, Cardiff has an estimated sale value of £710,462 and an estimated rental value of £2,508 per month, assuming reasonable condition and based on the information available.
Heol Isaf, Radyr, Cardiff, CF15 lies within the CF15 postal district.
Our Data Sources
139, Heol Isaf, Cardiff has a single entry in the Land Registry from July 2018 and a single entry in the EPC database dated April 2018.
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
In very good condition, we estimate 139, Heol Isaf, Cardiff would be worth £745,985, with a potential rental value of £2,634 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £660,729, with a rental value of £2,333 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Recent Market Change
The estimated sale value of 139, Heol Isaf, Cardiff has fallen by £3,161 (0.4%) over the last year. During the same period, its estimated monthly rental value has moved up by £64 (2.6%). The property's estimated gross yield is currently 4.2%.
Plot Size
139, Heol Isaf, Cardiff occupies a 1,164 m2 plot as recorded by HM Land Registry.
Of the 18 other houses in this postcode, 15 have recorded plot sizes, and this one ranks as the 10th largest.
Energy Efficiency
139, Heol Isaf, Cardiff has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 26 Apr 2018.
The property is connected to mains gas and has partial double glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
139, Heol Isaf, Cardiff last changed hands on 13th July 2018, selling for £581,275. 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 11.7% since July 2018.
- Sold Jul 2018£581,275
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 3 sales of comparable properties within 680 metres of 139, Heol Isaf, Cardiff across the last 2 years.
Most recently, 10, Garth Isaf, Cardiff, CF15 8GQ, a freehold house, sold at £675,000 on the 24th April 2025.
Read more about house prices in CF15.
- Sold Apr 2025£675,000 | 5 Bed House10, Garth Isaf, Cardiff, CF15 8GQ10, Garth Isaf, Cardiff, CF15 8GQ
- Sold Jun 2024£700,000 | 5 Bed House19, Heol Roald Dahl, Cardiff, CF15 8GT19, Heol Roald Dahl, Cardiff, CF15 8GT
- Sold Jan 2021£620,000 | 5 Bed House135, Heol Isaf, Cardiff, CF15 8DX135, Heol Isaf, Cardiff, CF15 8DX
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Our analysis of the public data ranks 139, Heol Isaf, Cardiff as the 58th largest and the 54th most expensive of the 161 addresses on Heol Isaf, Radyr, Cardiff, CF15.
Against the CF15 postcode district average, it is £323k more expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
Radyr station is the nearest stop to 139, Heol Isaf, Cardiff at 900 metres away.
- 900mRadyr
- 1.4kmDanescourt
- 1.5kmLlandaf
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a very low risk of flooding.
