Our Data Sources
12, William Street, Mountain Ash has 21 entries in the Land Registry , most recently in August 2010 and a single entry in the EPC database dated September 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 12, William Street, Mountain Ash, we estimate a market value of £158,653 and a rental value of £913 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £140,521 and £808 per month respectively.
Plot Size
HM Land Registry records the plot of land for 12, William Street, Mountain Ash as measuring 120 m2.
That makes it the 8th largest plot in the postcode, where 27 of the 33 other houses have recorded plot data.
Energy Efficiency
12, William Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 09 Sep 2013.
The property is not connected to mains gas and has partial double glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 12, William Street, Mountain Ash completed on 6th August 2010 at £62,000 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 77.3% over the period since August 2010.
- Sold Aug 2010£62,000
- Sold May 1997£21,800
Similar Properties Sold Nearby
Over the past 2 years 260 properties similar to 12, 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 8th May 2025, was 23, William Street, Mountain Ash, CF45 4RW, a freehold house which sold for £155,000.
Read more about house prices in CF45.
- 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
- Sold Nov 2024£105,000 | 3 Bed House36, Gertrude Street, Mountain Ash, CF45 4RL36, 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, 12, William Street, Mountain Ash comes out as the 27th largest and the 27th most expensive in our analysis of the public data.
It is also £9k 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.
