Our Data Sources
22, William Street, Mountain Ash has 2 entries in the Land Registry , most recently in July 2018 and a single entry in the EPC database dated October 2013.
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
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 22, William Street, Mountain Ash, we estimate a market value of £148,739 and a rental value of £887 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £131,741 and £786 per month respectively.
Plot Size
HM Land Registry records the plot of land for 22, William Street, Mountain Ash as measuring 111 m2.
That makes it the 23rd largest plot in the postcode, where 27 of the 33 other houses have recorded plot data.
Energy Efficiency
22, William Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 01 Oct 2013.
The property is not connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 22, William Street, Mountain Ash completed on 25th July 2018 at £60,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold twice.
Values of comparable properties have risen by 60.3% over the period since July 2018.
- Sold Jul 2018£60,000
- Sold Sep 2017£48,000
Similar Properties Sold Nearby
Over the past 2 years 121 properties similar to 22, William Street, Mountain Ash have sold within a radius of 1.3 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 31st January 2025, was 15, Ann Street, Mountain Ash, CF45 4NW, a freehold house which sold for £116,000.
Read more about house prices in CF45.
- Sold Jan 2025£116,000 | 3 Bed House15, Ann Street, Mountain Ash, CF45 4NW15, Ann Street, Mountain Ash, CF45 4NW
- Sold Nov 2024£105,000 | 3 Bed House36, Gertrude Street, Mountain Ash, CF45 4RL36, Gertrude Street, Mountain Ash, CF45 4RL
- Sold Jul 2024£151,000 | 3 Bed House1, Gertrude Street, Mountain Ash, CF45 4RL1, Gertrude Street, Mountain Ash, CF45 4RL
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 33 addresses on William Street, Abercynon, Mountain Ash, CF45, 22, William Street, Mountain Ash comes out as the 29th largest and the 29th most expensive in our analysis of the public data.
It is also £19k less expensive than the average property across the CF45 district.
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
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












