25, William Street
25, William Street
Description & Estimates







According to the public record, 25, William Street, Treorchy is a mid-century apartment with 365 ft2 of internal area.
Apartments of this size in this area normally have 2 bedrooms.
Based on available information, and assuming reasonable condition, the estimated sale value for 25, William Street, Treorchy is £39,400 and the estimated rental value is £285 per month.
William Street, Treherbert, Treorchy, CF42 is located within the CF42 postal district.
Our Data Sources
25, William Street, Treorchy has no records in the the Land Registry and a single entry in the EPC database dated March 2025.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low 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, William Street, Treorchy is in very good condition we estimate a sale value of £41,370 and a rental value of £299 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £36,642 and a rental value of £265 per month.
Recent Market Change
Over the past 12 months, the estimated sale value of 25, William Street, Treorchy has moved up by £451 (1.1%), while its estimated rental value has increased by £7 per month (2.5%). Based on current estimates, the property offers a gross rental yield of 8.7%.
Energy Efficiency
25, William Street, Treorchy has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 17 Mar 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 3 property sales within 950 metres of 25, William Street, Treorchy over the last 2 years.
The most recent example is 1, William Street, Treorchy, CF42 5LW, a freehold house which sold for £119,000 on the 27th May 2016.
Read more about house prices in CF42.
- Sold May 2016£119,000 | 3 Bed House1, William Street, Treorchy, CF42 5LW1, William Street, Treorchy, CF42 5LW
- Sold Aug 2015£35,000 | 3 Bed House2, William Street, Treorchy, CF42 5LW2, William Street, Treorchy, CF42 5LW
- Sold Feb 2015£37,500 | 3 Bed House4, William Street, Treorchy, CF42 5LW4, William Street, Treorchy, CF42 5LW
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
William Street, Treherbert, Treorchy, CF42 has a total of 37 addresses. According to our analysis of all the public data, 25, William Street, Treorchy is the 31st largest and the 31st most expensive property on the street.
When compared to the postcode district it is £112k less expensive than the average property in CF42.
More reading links
Schools Nearby
Public Transport Nearby
The closest station to 25, William Street, Treorchy is Treherbert station, which is 700 metres away.
- 700mTreherbert
- 1.9kmYnyswen
- 3.3kmTreorchy
Available Internet Speeds
According to recent data from Ofcom, superfast broadband is available in this area.
According to recent data from Ofcom, Superfast broadband is available in the area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be very low.

