Our Data Sources
26, Castleton Avenue, Treorchy has a single entry in the Land Registry from August 2022 and a single entry in the EPC database dated January 2017.
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 26, Castleton Avenue, Treorchy is in very good condition we estimate a sale value of £152,350 and a rental value of £901 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £134,939 and a rental value of £798 per month.
Plot Size
According to data from HM Land Registry, 26, Castleton Avenue, Treorchy sits on a plot of 515 m2.
We have plot size data on 27 out of 30 other houses in the postcode and 26, Castleton Avenue, Treorchy sits on the 2nd largest plot.
Energy Efficiency
26, Castleton Avenue, Treorchy has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 05 Jan 2017.
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, 26, Castleton Avenue, Treorchy was last sold on 12th August 2022 for £125,000 and was recorded as a freehold house.
The property has only had this single sale since 1995.
Since August 2022, the market for similar properties has risen by 21.8%.
- Sold Aug 2022£125,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 135 sales of properties similar to 26, Castleton Avenue, Treorchy within a radius of 1.4 kilometres since 2014.
The most recent example is 39, Blaenrhondda Road, Treorchy, CF42 5SP, a freehold house which sold for £118,500 on the 10th December 2025.
Read more about house prices in CF42.
- 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 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
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 £151,013, ranging from £106,921 to £274,293.
- 25 Castleton Avenue
3 Bed House | 4 m | Est. Value: £137,040
- 24 Castleton Avenue
3 Bed House | 25 m | Est. Value: £140,321
- 23 Castleton Avenue
3 Bed House | 34 m | Est. Value: £135,103
- Plasnewydd
5 Bed House | 37 m | Est. Value: £274,293
- 1 Castleton Avenue
4 Bed House | 48 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, 26, Castleton Avenue, Treorchy is the 19th largest and the 18th most expensive property on the street.
When compared to the postcode district it is £9k 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.
