Our Data Sources
6, Hillside, Mountain Ash has 2 entries in the Land Registry , most recently in August 2014 and a single entry in the EPC database dated June 2025.
We combine this information with that 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
In very good condition, we estimate 6, Hillside, Mountain Ash would be worth £140,111, with a potential rental value of £855 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £124,099, with a rental value of £757 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
6, Hillside, Mountain Ash occupies a 158 m2 plot as recorded by HM Land Registry.
Of the 13 other houses in this postcode, 10 have recorded plot sizes, and this one ranks as the 8th largest.
Energy Efficiency
6, Hillside, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 27 Jun 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
6, Hillside, Mountain Ash last changed hands on 27th August 2014, selling for £80,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has risen by 119.6% since August 2014.
- Sold Aug 2014£80,000
- Sold Mar 2013£29,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 160 sales of comparable properties within 630 metres of 6, Hillside, Mountain Ash across the last 2 years.
Most recently, 111, Woodfield Terrace, Mountain Ash, CF45 3UT, a freehold house, sold at £108,000 on the 14th November 2025.
Read more about house prices in CF45.
- Sold Nov 2025£108,000 | 3 Bed House111, Woodfield Terrace, Mountain Ash, CF45 3UT111, Woodfield Terrace, Mountain Ash, CF45 3UT
- Sold Nov 2025£120,000 | 3 Bed House100, Woodfield Terrace, Mountain Ash, CF45 3UT100, Woodfield Terrace, Mountain Ash, CF45 3UT
- Sold Sep 2025£116,500 | 3 Bed House20, Ty'R Felin Street, Mountain Ash, CF45 3YR20, Ty'R Felin Street, Mountain Ash, CF45 3YR
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks 6, Hillside, Mountain Ash as the 7th largest and the 7th most expensive of the 13 addresses on Hillside, Mountain Ash, CF45.
Against the CF45 postcode district average, it is £27k less expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Penrhiwceiber|900 m away
- Mountain Ash|1.0 km away
- Fernhill|2.3 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












