Our Data Sources
23, Castleton Avenue, Treorchy has no records in the Land Registry and a single entry in the EPC database dated March 2024.
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 23, Castleton Avenue, Treorchy, we estimate a market value of £141,859 and a rental value of £859 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £125,646 and £761 per month respectively.
Plot Size
HM Land Registry records the plot of land for 23, Castleton Avenue, Treorchy as measuring 208 m2.
That makes it the 20th largest plot in the postcode, where 27 of the 30 other houses have recorded plot data.
Energy Efficiency
23, Castleton Avenue, Treorchy has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 21 Mar 2024.
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 2016 127 properties similar to 23, Castleton Avenue, Treorchy have sold within a radius of 1.5 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 6th November 2025, was 9, St. Albans Road, Treorchy, CF42 5DD, a freehold house which sold for £135,000.
Read more about house prices in CF42.
- Sold Nov 2025£135,000 | 3 Bed House9, St. Albans Road, Treorchy, CF42 5DD9, St. Albans Road, Treorchy, CF42 5DD
- Sold Jul 2025£132,000 | 3 Bed House18, Clyngwyn Road, Treorchy, CF42 5SL18, Clyngwyn Road, Treorchy, CF42 5SL
- Sold Mar 2025£130,000 | 4 Bed House95, Brook Street, Treorchy, CF42 5SF95, Brook Street, Treorchy, CF42 5SF
- Sold Feb 2025£78,000 | 3 Bed House20, St. Albans Road, Treorchy, CF42 5DD20, St. Albans Road, Treorchy, CF42 5DD
- Sold Nov 2024£115,000 | 3 Bed House7, Blaenrhondda Road, Treorchy, CF42 5SP7, Blaenrhondda Road, Treorchy, CF42 5SP
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 £156,627, ranging from £119,013 to £274,293.
- 24 Castleton Avenue
3 Bed House | 8 m | Est. Value: £140,321
- 21 Castleton Avenue
3 Bed House | 18 m | Est. Value: £121,156
- 1 Castleton Avenue
4 Bed House | 25 m | Est. Value: £176,025
- 2 Castleton Avenue
3 Bed House | 27 m | Est. Value: £150,575
- Plasnewydd
5 Bed House | 28 m | Est. Value: £274,293
Location Comparison
Of the 30 addresses on Castleton Avenue, Treherbert, Treorchy, CF42, 23, Castleton Avenue, Treorchy comes out as the 16th largest and the 22nd most expensive in our analysis of the public data.
It is also £19k less expensive than the average property across the CF42 district.
More reading links
Schools Nearby
Public Transport Nearby
- Treherbert|1.6 km away
- Ynyswen|2.8 km away
- Treorchy|4.2 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.
