Our Data Sources
3, Heol Williams, Cardiff has a single entry in the Land Registry from May 2019 and a single entry in the EPC database dated May 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
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 3, Heol Williams, Cardiff, we estimate a market value of £347,170 and a rental value of £1,607 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £307,493 and £1,423 per month respectively.
Plot Size
HM Land Registry records the plot of land for 3, Heol Williams, Cardiff as measuring 203 m2.
That makes it the 15th largest plot in the postcode, where 56 of the 58 other houses have recorded plot data.
Energy Efficiency
3, Heol Williams, Cardiff has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 20 May 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
The most recent sale of 3, Heol Williams, Cardiff completed on 31st May 2019 at £289,995 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 1.6% over the period since May 2019.
- Sold May 2019£289,995
Similar Properties Sold Nearby
Over the past 2 years 3 properties similar to 3, Heol Williams, Cardiff have sold within a radius of 800 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 22nd January 2026, was 9, Heol Swatridge, Cardiff, CF3 6AP, a freehold house which sold for £287,000.
Read more about house prices in CF3.
- Sold Jan 2026£287,000 | 3 Bed House9, Heol Swatridge, Cardiff, CF3 6AP9, Heol Swatridge, Cardiff, CF3 6AP
- Sold Apr 2025£340,000 | 3 Bed House118, Mortimer Avenue, Cardiff, CF3 6YF118, Mortimer Avenue, Cardiff, CF3 6YF
- Sold Apr 2025£342,000 | 3 Bed House15, Rees Drive, Cardiff, CF3 6AS15, Rees Drive, Cardiff, CF3 6AS
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 58 addresses on Heol Williams, Old St. Mellons, Cardiff, CF3, 3, Heol Williams, Cardiff comes out as the 26th largest and the 10th most expensive in our analysis of the public data.
It is also £74k more expensive than the average property across the CF3 district.
More reading links
Schools Nearby
Public Transport Nearby
- 4.1kmLlanishen
- 4.4kmLisvane & Thornhill
- 4.6kmHeath High Level
Risk of Flooding
The flood risk here is rated very low, based on Environment Agency data.
