Our Data Sources
25, Castleton Avenue, Treorchy has 2 entries in the Land Registry, most recently in July 2025 and a single entry in the EPC database dated March 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
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 25, Castleton Avenue, Treorchy is in very good condition we estimate a sale value of £143,892 and a rental value of £880 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £127,447 and a rental value of £779 per month.
Plot Size
According to data from HM Land Registry, 25, Castleton Avenue, Treorchy sits on a plot of 350 m2.
We have plot size data on 27 out of 30 other houses in the postcode and 25, Castleton Avenue, Treorchy sits on the 14th largest plot.
Energy Efficiency
25, Castleton Avenue, Treorchy has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 18 Mar 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
According to HM Land Registry, 25, Castleton Avenue, Treorchy was last sold on 18th July 2025 for £130,000 and was recorded as a freehold house.
The property has had 2 sales since 1995.
Since July 2025, the market for similar properties has risen by 13.3%.
- Sold Jul 2025£130,000
- Sold Apr 2019£86,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 108 sales of properties similar to 25, Castleton Avenue, Treorchy within a radius of 1.4 kilometres since 2014.
The most recent example is 28, Blaen-Y-Cwm Terrace, Treorchy, CF42 5ND, a freehold house which sold for £65,000 on the 23rd February 2026.
Read more about house prices in CF42.
- Sold Feb 2026£65,000 | 3 Bed House28, Blaen-Y-Cwm Terrace, Treorchy, CF42 5ND28, Blaen-Y-Cwm Terrace, Treorchy, CF42 5ND
- Sold Dec 2025£118,500 | 3 Bed House39, Blaenrhondda Road, Treorchy, CF42 5SP39, Blaenrhondda Road, Treorchy, CF42 5SP
- Sold Nov 2025£140,000 | 3 Bed House18, Blaenrhondda Road, Treorchy, CF42 5SP18, Blaenrhondda Road, Treorchy, CF42 5SP
- Sold Nov 2025£105,000 | 3 Bed House38, Blaenrhondda Road, Treorchy, CF42 5SP38, Blaenrhondda Road, Treorchy, CF42 5SP
- Sold Jul 2025£70,000 | 3 Bed House6, Blaen-Y-Cwm Terrace, Treorchy, CF42 5ND6, Blaen-Y-Cwm Terrace, Treorchy, CF42 5ND
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 £153,831, ranging from £106,921 to £274,293.
- 26 Castleton Avenue
3 Bed House | 4 m | Est. Value: £145,095
- 24 Castleton Avenue
3 Bed House | 21 m | Est. Value: £140,321
- 23 Castleton Avenue
3 Bed House | 30 m | Est. Value: £135,103
- Plasnewydd
5 Bed House | 35 m | Est. Value: £274,293
- 1 Castleton Avenue
4 Bed House | 45 m | Est. Value: £176,025
Location Comparison
Castleton Avenue, Treherbert, Treorchy, CF42 has a total of 30 addresses. According to our analysis of all the public data, 25, Castleton Avenue, Treorchy is the 26th largest and the 21st most expensive property on the street.
When compared to the postcode district it is £17k less expensive than the average property in CF42.
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
According to recent data from Ofcom, Superfast Broadband is available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.
