Our Data Sources
128, Heol Isaf, Cardiff has a single entry in the Land Registry from July 2017 and no records in the EPC database.
We combine this sold price information with public data of neighbouring properties to estimate the attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
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 128, Heol Isaf, Cardiff, we estimate a market value of £673,852 and a rental value of £2,240 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £596,840 and £1,984 per month respectively.
Sold Prices
The most recent sale of 128, Heol Isaf, Cardiff completed on 28th July 2017 at £535,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 this is the property's only sale.
Values of comparable properties have risen by 36.8% over the period since July 2017.
- Sold Jul 2017£535,000
Similar Properties Sold Nearby
Since 2018 107 properties similar to 128, Heol Isaf, Cardiff have sold within a radius of 700 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 10th March 2026, was 42, St. Philbert Street, Cardiff, CF15 8GW, a freehold house which sold for £582,000.
Read more about house prices in CF15.
- Sold Mar 2026£582,000 | 4 Bed House42, St. Philbert Street, Cardiff, CF15 8GW42, St. Philbert Street, Cardiff, CF15 8GW
- Sold Aug 2025£760,000 | 5 Bed House33, St. Philbert Street, Cardiff, CF15 8GW33, St. Philbert Street, Cardiff, CF15 8GW
- Sold Feb 2025£617,000 | 4 Bed House6, Garth Isaf, Cardiff, CF15 8GQ6, Garth Isaf, Cardiff, CF15 8GQ
- Sold Jan 2025£645,000 | 5 Bed House90, Heol Isaf, Cardiff, CF15 8EA90, Heol Isaf, Cardiff, CF15 8EA
- Sold Aug 2024£585,000 | 4 Bed House60, Heol Isaf, Cardiff, CF15 8DZ60, Heol Isaf, Cardiff, CF15 8DZ
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 £535,272, ranging from £326,572 to £826,309.
- 110 Heol Isaf
5 Bed House | 1 m | Est. Value: £739,871
- 108 Heol Isaf
5 Bed House | 24 m | Est. Value: £826,309
- 106 Heol Isaf
5 Bed House | 41 m | Est. Value: £756,091
- 16 St. Philbert Street
4 Bed House | 43 m | Est. Value: £594,823
- 18 St. Philbert Street
5 Bed House | 47 m | Est. Value: £625,049
Location Comparison
Of the 161 addresses on Heol Isaf, Radyr, Cardiff, CF15, 128, Heol Isaf, Cardiff comes out as the 103rd largest and the 82nd most expensive in our analysis of the public data.
It is also £250k 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.












