Our Data Sources
40, Heol Williams, Cardiff has 2 entries in the Land Registry , most recently in January 2025 and a single entry in the EPC database dated April 2019.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
Price Range & Condition
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 40, Heol Williams, Cardiff is in very good condition we estimate a sale value of £281,438 and a rental value of £1,464 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £249,274 and a rental value of £1,296 per month.
Plot Size
According to data from HM Land Registry, 40, Heol Williams, Cardiff sits on a plot of 206 m2.
We have plot size data on 56 out of 58 other houses in the postcode and 40, Heol Williams, Cardiff sits on the 14th largest plot.
Energy Efficiency
40, Heol Williams, Cardiff has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 04 Apr 2019.
The property is not connected to mains gas and has high performance glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
According to HM Land Registry, 40, Heol Williams, Cardiff was last sold on 16th January 2025 for £285,000 and was recorded as a freehold house.
The property has had 2 sales since 1995.
Since January 2025, the market for similar properties has dropped by 20.1%.
- Sold Jan 2025£285,000
- Sold Apr 2019£219,995
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 235 sales of properties similar to 40, Heol Williams, Cardiff within a radius of 780 metres over the last 2 years.
The most recent example is 13, Rees Drive, Cardiff, CF3 6AS, a freehold house which sold for £285,000 on the 24th April 2026.
Read more about house prices in CF3.
- Sold Apr 2026£285,000 | 3 Bed House13, Rees Drive, Cardiff, CF3 6AS13, Rees Drive, Cardiff, CF3 6AS
- Sold Jan 2026£250,000 | 3 Bed House52, Heol Williams, Cardiff, CF3 6AQ52, Heol Williams, Cardiff, CF3 6AQ
- Sold Nov 2025£255,000 | 3 Bed House21, Heol Williams, Cardiff, CF3 6AQ21, Heol Williams, Cardiff, CF3 6AQ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Heol Williams, Old St. Mellons, Cardiff, CF3 has a total of 58 addresses. According to our analysis of all the public data, 40, Heol Williams, Cardiff is the 43rd largest and the 41st most expensive property on the street.
When compared to the postcode district it is £10k more expensive than the average property in CF3.
More reading links
Schools Nearby
Public Transport Nearby
- Llanishen|4.1 km away
- Lisvane & Thornhill|4.4 km away
- Heath High Level|4.6 km away
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.
