Our Data Sources
21, Trecastle Avenue, Cardiff has no records in the the Land Registry and a single entry in the EPC database dated December 2017.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 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 21, Trecastle Avenue, Cardiff, we estimate a market value of £307,780 and a rental value of £1,628 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £272,605 and £1,442 per month respectively.
Energy Efficiency
21, Trecastle Avenue, Cardiff has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 12 Dec 2017.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Similar Properties Sold Nearby
Over the past 2 years 251 properties similar to 21, Trecastle Avenue, Cardiff have sold within a radius of 630 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 13th January 2026, was 55, Newborough Avenue, Cardiff, CF14 5DA, a freehold house which sold for £285,000.
Read more about house prices in CF14.
- Sold Jan 2026£285,000 | 3 Bed House55, Newborough Avenue, Cardiff, CF14 5DA55, Newborough Avenue, Cardiff, CF14 5DA
- Sold Oct 2025£311,000 | 3 Bed House106, Llangranog Road, Cardiff, CF14 5BQ106, Llangranog Road, Cardiff, CF14 5BQ
- Sold Sep 2025£275,000 | 3 Bed House61, Newborough Avenue, Cardiff, CF14 5DA61, Newborough Avenue, Cardiff, CF14 5DA
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Of the 29 addresses on Trecastle Avenue, Llanishen, Cardiff, CF14, 21, Trecastle Avenue, Cardiff comes out as the 8th largest and the 6th most expensive in our analysis of the public data.
It is also £79k less expensive than the average property across the CF14 district.
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Schools Nearby
Public Transport Nearby
- Llanishen|800 m away
- Ty Glas|1.1 km away
- Birchgrove|1.3 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.
