Our Data Sources
21, Heol Nant Castan, Cardiff has a single entry in the Land Registry from April 2025 and a single entry in the EPC database dated February 2025.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 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 21, Heol Nant Castan, Cardiff, we estimate a market value of £482,226 and a rental value of £1,781 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £427,114 and £1,577 per month respectively.
Plot Size
HM Land Registry records the plot of land for 21, Heol Nant Castan, Cardiff as measuring 361 m2.
That makes it the 8th largest plot in the postcode, where all 34 other houses have recorded plot data.
Energy Efficiency
21, Heol Nant Castan, Cardiff has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 25 Feb 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 21, Heol Nant Castan, Cardiff completed on 17th April 2025 at £170,000 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 dropped by 3.9% over the period since April 2025.
- Sold Apr 2025£170,000
Similar Properties Sold Nearby
Over the past 2 years 215 properties similar to 21, Heol Nant Castan, Cardiff have sold within a radius of 560 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 24th July 2025, was 50, Heol Uchaf, Cardiff, CF14 6SQ, a freehold house which sold for £420,000.
Read more about house prices in CF14.
- Sold Jul 2025£420,000 | 3 Bed House50, Heol Uchaf, Cardiff, CF14 6SQ50, Heol Uchaf, Cardiff, CF14 6SQ
- Sold Mar 2025£450,000 | 4 Bed House2, Heol Nant Castan, Cardiff, CF14 6RP2, Heol Nant Castan, Cardiff, CF14 6RP
- Sold Feb 2024£370,000 | 4 Bed House12, Heol Mabon, Cardiff, CF14 6RL12, Heol Mabon, Cardiff, CF14 6RL
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 70 addresses on Heol Nant Castan, Cardiff, CF14, 21, Heol Nant Castan, Cardiff comes out as the 4th largest and the 7th most expensive in our analysis of the public data.
It is also £87k more expensive than the average property across the CF14 district.
More reading links
Schools Nearby
Public Transport Nearby
- Rhiwbina|900 m away
- Birchgrove|1.1 km away
- Whitchurch (Cardiff)|1.1 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.
