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By comparing it to neighbours, we estimate that it is a period house with 1,590 ft2 of internal area and a garden.
Houses of this size in this area normally have 4 bedrooms.
Based on available information, and assuming reasonable condition, the estimated sale value for 128, Heol Isaf, Cardiff is £637,112 and the estimated rental value is £2,190 per month.
Heol Isaf, Radyr, Cardiff, CF15 is located within the CF15 postal district.
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.
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 128, Heol Isaf, Cardiff is in very good condition we estimate a sale value of £668,967 and a rental value of £2,299 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £592,514 and a rental value of £2,037 per month.
Over the last 12 months the sale value of 128 Heol Isaf Cardiff has decreased by an estimated £2,408 (0.4%) and its rental value has increased by an estimated £63 per month (2.9%), giving an expected gross yield of 4.1%.
According to HM Land Registry, 128, Heol Isaf, Cardiff was last sold on 28th July 2017 for £535,000 and was recorded as a freehold house.
The property has only had this single sale since 1995.
Since July 2017, the market for similar properties has risen 35.6%
According to the Land Registry and our network of Estate Agents, there have been 3 sales of properties similar to 128, Heol Isaf, Cardiff within a radius of 700 metres over the last 2 years.
The most recent example is 33, St. Philbert Street, Cardiff, CF15 8GW, a freehold house which sold for £760,000 on the 19th August 2025.
Read more about house prices in CF15.
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
Heol Isaf, Radyr, Cardiff, CF15 has a total of 161 addresses. According to our analysis of all the public data, 128, Heol Isaf, Cardiff is the 104th largest and the 80th most expensive property on the street.
When compared to the postcode district it is £249k more expensive than the average property in CF15.
The closest station to 128, Heol Isaf, Cardiff is Radyr station which is 800 metres away.
According to recent data from Ofcom, ultrafast broadband is available in this area.
According to recent data from Ofcom, Ultrafast broadband is available in the area.
According to data from the Environment Agency, the flood risk in this area is considered to be very low.
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The recent census recorded whether a resident owned or rented their home.
In the area around 128, Heol Isaf, Cardiff, % of property is and % is .
The graph below shows how this compares to Wales and the rest of England & Wales.
The recent census recorded the highest level of education achieved by residents in the local area.
In the area around 128, Heol Isaf, Cardiff, 0.0% of residents are recorded as possessing school level qualifications and 0.0% as possessing degree level qualifications.
The graph below shows how this compares to Wales and the rest of England & Wales.
The recent census recorded whether a property was a primary or secondary home for the resident.
In the area around 128, Heol Isaf, Cardiff, 0.0% of property was a second home.
Comparison figures for Wales and the rest of England & Wales are listed below.
The recent census recorded the number of cars registered in each household.
In the area around 128, Heol Isaf, Cardiff, there are an average of 0.0 cars per household.
See below for how this compares to Wales and the rest of England & Wales.