Our Data Sources
111, Pentwyn Avenue, Mountain Ash has 41 entries in the Land Registry, most recently in May 2019 and a single entry in the EPC database dated October 2025.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
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 111, Pentwyn Avenue, Mountain Ash is in very good condition we estimate a sale value of £86,997 and a rental value of £615 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £77,054 and a rental value of £545 per month.
Plot Size
According to data from HM Land Registry, 111, Pentwyn Avenue, Mountain Ash sits on a plot of 158 m2.
We have plot size data on 63 out of 66 other houses in the postcode and 111, Pentwyn Avenue, Mountain Ash sits on the 17th largest plot.
Energy Efficiency
111, Pentwyn Avenue, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 17 Oct 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
According to HM Land Registry, 111, Pentwyn Avenue, Mountain Ash was last sold on 20th May 2019 for £39,999 and was recorded as a freehold house.
The property has had 4 sales since 1995.
Since May 2019, the market for similar properties has risen by 144.4%.
- Sold May 2019£39,999
- Sold Nov 2017£33,000
- Sold Sep 2004£42,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 106 sales of properties similar to 111, Pentwyn Avenue, Mountain Ash within a radius of 1.3 kilometres since 2017.
The most recent example is 206, Bryntirion, Mountain Ash, CF45 4EJ, a freehold house which sold for £80,000 on the 12th June 2026.
Read more about house prices in CF45.
- Sold Jun 2026£80,000 | 3 Bed House206, Bryntirion, Mountain Ash, CF45 4EJ206, Bryntirion, Mountain Ash, CF45 4EJ
- Sold Dec 2025£82,950 | 3 Bed House96, Bryntirion, Mountain Ash, CF45 4EX96, Bryntirion, Mountain Ash, CF45 4EX
- Sold Oct 2025£60,500 | 3 Bed House123, Pentwyn Avenue, Mountain Ash, CF45 4YE123, Pentwyn Avenue, Mountain Ash, CF45 4YE
- Sold Sep 2025£75,000 | 3 Bed House7, Walsh Street, Mountain Ash, CF45 4YS7, Walsh Street, Mountain Ash, CF45 4YS
- Sold Aug 2025£83,000 | 3 Bed House90, Bryntirion, Mountain Ash, CF45 4EX90, Bryntirion, Mountain Ash, CF45 4EX
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £100,025, ranging from £77,560 to £151,508.
- 109 Pentwyn Avenue
3 Bed House | 4 m | Est. Value: £82,854
- 113 Pentwyn Avenue
3 Bed House | 6 m | Est. Value: £82,299
- 115 Pentwyn Avenue
3 Bed House | 10 m | Est. Value: £81,303
- 117 Pentwyn Avenue
3 Bed House | 15 m | Est. Value: £84,215
- 103 Pentwyn Avenue
3 Bed House | 20 m | Est. Value: £91,598
Location Comparison
Pentwyn Avenue, Mountain Ash, CF45 has a total of 111 addresses. According to our analysis of all the public data, 111, Pentwyn Avenue, Mountain Ash is the 77th largest and the 89th most expensive property on the street.
When compared to the postcode district it is £80k less expensive than the average property in CF45.
More reading links
Schools Nearby
Public Transport Nearby
- Penrhiwceiber|1.0 km away
- Quakers Yard|2.2 km away
- Abercynon|2.7 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 available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.
