Our Data Sources
24, William Street, Mountain Ash has a single entry in the Land Registry from September 2021 and a single entry in the EPC database dated May 2018.
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 24, William Street, Mountain Ash is in very good condition we estimate a sale value of £160,556 and a rental value of £917 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £142,207 and a rental value of £812 per month.
Plot Size
According to data from HM Land Registry, 24, William Street, Mountain Ash sits on a plot of 119 m2.
We have plot size data on 27 out of 33 other houses in the postcode and 24, William Street, Mountain Ash sits on the 11th largest plot.
Energy Efficiency
24, William Street, Mountain Ash has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 12 May 2018.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
According to HM Land Registry, 24, William Street, Mountain Ash was last sold on 17th September 2021 for £130,000 and was recorded as a freehold house.
The property has only had this single sale since 1995.
Since September 2021, the market for similar properties has risen by 23.2%.
- Sold Sep 2021£130,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 277 sales of properties similar to 24, William Street, Mountain Ash within a radius of 1.3 kilometres over the last 2 years.
The most recent example is 24, Herbert Street, Mountain Ash, CF45 4RH, a freehold house which sold for £120,000 on the 14th October 2025.
Read more about house prices in CF45.
- Sold Oct 2025£120,000 | 3 Bed House24, Herbert Street, Mountain Ash, CF45 4RH24, Herbert Street, Mountain Ash, CF45 4RH
- Sold May 2025£155,000 | 3 Bed House23, William Street, Mountain Ash, CF45 4RW23, William Street, Mountain Ash, CF45 4RW
- Sold Feb 2025£117,000 | 3 Bed House9, Gertrude Street, Mountain Ash, CF45 4RL9, Gertrude Street, Mountain Ash, CF45 4RL
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
William Street, Abercynon, Mountain Ash, CF45 has a total of 33 addresses. According to our analysis of all the public data, 24, William Street, Mountain Ash is the 24th largest and the 24th most expensive property on the street.
When compared to the postcode district it is £8k less expensive than the average property in CF45.
More reading links
Schools Nearby
Public Transport Nearby
- Abercynon|200 m away
- Quakers Yard|1.9 km away
- Penrhiwceiber|3.6 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 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.
