Our Data Sources
1, Castle Avenue, Cardiff has no records in the Land Registry and a single entry in the EPC database dated November 2019.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 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 1, Castle Avenue, Cardiff, we estimate a market value of £257,277 and a rental value of £1,382 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £227,874 and £1,224 per month respectively.
Plot Size
HM Land Registry records the plot of land for 1, Castle Avenue, Cardiff as measuring 168 m2.
That makes it the 13th largest plot in the postcode, where all 13 other houses have recorded plot data.
Energy Efficiency
1, Castle Avenue, Cardiff has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 11 Nov 2019.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Similar Properties Sold Nearby
Since 2021 103 properties similar to 1, Castle Avenue, Cardiff have sold within a radius of 830 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 20th March 2026, was 25, Northlands, Cardiff, CF3 3AQ, a freehold house which sold for £250,000.
Read more about house prices in CF3.
- Sold Mar 2026£250,000 | 3 Bed House25, Northlands, Cardiff, CF3 3AQ25, Northlands, Cardiff, CF3 3AQ
- Sold Jan 2026£235,000 | 3 Bed House10, Widecombe Drive, Cardiff, CF3 4AQ10, Widecombe Drive, Cardiff, CF3 4AQ
- Sold Nov 2025£280,000 | 3 Bed House5, Northlands, Cardiff, CF3 3AQ5, Northlands, Cardiff, CF3 3AQ
- Sold Nov 2025£258,000 | 2 Bed House2, Cwrt Coles, Cardiff, CF24 2RY2, Cwrt Coles, Cardiff, CF24 2RY
- Sold Aug 2025£275,000 | 3 Bed House162, New Road, Cardiff, CF3 3AE162, New Road, Cardiff, CF3 3AE
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 £252,969, ranging from £127,951 to £308,205.
- 3 Castle Avenue
3 Bed House | 5 m | Est. Value: £244,912
- 5 Castle Avenue
4 Bed House | 11 m | Est. Value: £280,500
- 7 Castle Avenue
3 Bed House | 16 m | Est. Value: £265,633
- 9 Castle Avenue
3 Bed House | 21 m | Est. Value: £253,414
- 609 Newport Road
3 Bed House | 21 m | Est. Value: £281,926
Location Comparison
Of the 13 addresses on Castle Avenue, Rumney, Cardiff, CF3, 1, Castle Avenue, Cardiff comes out as the 12th largest and the 9th most expensive in our analysis of the public data.
It is also £13k less expensive than the average property across the CF3 district.
More reading links
Schools Nearby
Public Transport Nearby
- Cathays|3.1 km away
- Cardiff Queen Street|3.1 km away
- Heath Low Level|3.3 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.
