Our Data Sources
129, Pentwyn Avenue, Mountain Ash has no records in the Land Registry and a single entry in the EPC database dated March 2019.
We combine this information with public data 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.
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 129, Pentwyn Avenue, Mountain Ash is in very good condition we estimate a sale value of £84,264 and a rental value of £605 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £74,634 and a rental value of £536 per month.
Plot Size
According to data from HM Land Registry, 129, Pentwyn Avenue, Mountain Ash sits on a plot of 145 m2.
We have plot size data on 63 out of 66 other houses in the postcode and 129, Pentwyn Avenue, Mountain Ash sits on the 49th largest plot.
Energy Efficiency
129, Pentwyn Avenue, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 14 Mar 2019.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 80 sales of properties similar to 129, 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 Aug 2025£83,000 | 3 Bed House90, Bryntirion, Mountain Ash, CF45 4EX90, Bryntirion, Mountain Ash, CF45 4EX
- Sold May 2025£80,000 | 3 Bed House1, Penybryn Terrace, Mountain Ash, CF45 3TJ1, Penybryn Terrace, Mountain Ash, CF45 3TJ
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 £101,501, ranging from £77,560 to £130,277.
- 127 Pentwyn Avenue
3 Bed House | 4 m | Est. Value: £81,303
- 131 Pentwyn Avenue
3 Bed House | 6 m | Est. Value: £90,669
- 125 Pentwyn Avenue
3 Bed House | 10 m | Est. Value: £79,186
- 123 Pentwyn Avenue
3 Bed House | 14 m | Est. Value: £82,854
- 121 Pentwyn Avenue
3 Bed House | 20 m | Est. Value: £77,560
Location Comparison
Pentwyn Avenue, Mountain Ash, CF45 has a total of 111 addresses. According to our analysis of all the public data, 129, Pentwyn Avenue, Mountain Ash is the 92nd largest and the 103rd most expensive property on the street.
When compared to the postcode district it is £83k less expensive than the average property in CF45.
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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.
