Our Data Sources
14, Pentwyn Avenue, Mountain Ash has no recent1 records in the Land Registry and a single entry in the EPC database dated January 2021.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
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 14, Pentwyn Avenue, Mountain Ash, we estimate a market value of £120,048 and a rental value of £807 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £106,328 and £715 per month respectively.
Plot Size
HM Land Registry records the plot of land for 14, Pentwyn Avenue, Mountain Ash as measuring 209 m2.
That makes it the 11th largest plot in the postcode, where 41 of the 45 other houses have recorded plot data.
Energy Efficiency
14, Pentwyn Avenue, Mountain Ash has an Energy Performance Rating (EPC) of G. This is based on the most recent assessment, dated 07 Jan 2021.
The property is connected to mains gas and has fully double glazed windows. It is heated using no system present: electric heaters assumed.
Sold Prices
The most recent sale of 14, Pentwyn Avenue, Mountain Ash completed on 11th February 1999 at £25,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 this is the property's only sale.
- Sold Feb 1999£25,000
Similar Properties Sold Nearby
Since 2015 109 properties similar to 14, Pentwyn Avenue, Mountain Ash have sold within a radius of 1.4 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 20th March 2026, was 3, Glanlay Street, Mountain Ash, CF45 3TL, a freehold house which sold for £127,500.
Read more about house prices in CF45.
- Sold Mar 2026£127,500 | 3 Bed House3, Glanlay Street, Mountain Ash, CF45 3TL3, Glanlay Street, Mountain Ash, CF45 3TL
- Sold Oct 2025£115,000 | 3 Bed House30, Glanlay Street, Mountain Ash, CF45 3TL30, Glanlay Street, Mountain Ash, CF45 3TL
- Sold Apr 2025£123,000 | 3 Bed House21, Glamorgan Street, Mountain Ash, CF45 3HX21, Glamorgan Street, Mountain Ash, CF45 3HX
- Sold Mar 2025£82,500 | 3 Bed House3, Morris Avenue, Mountain Ash, CF45 3TW3, Morris Avenue, Mountain Ash, CF45 3TW
- Sold Feb 2025£150,000 | 3 Bed House39, Glanlay Street, Mountain Ash, CF45 3TL39, Glanlay Street, Mountain Ash, CF45 3TL
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 £99,569, ranging from £80,779 to £149,026.
- 16 Pentwyn Avenue
3 Bed House | 10 m | Est. Value: £132,345
- 10 Pentwyn Avenue
3 Bed House | 17 m | Est. Value: £130,952
- 17 Pentwyn Avenue
3 Bed House | 21 m | Est. Value: £81,303
- 15 Pentwyn Avenue
3 Bed House | 21 m | Est. Value: £84,877
- 19 Pentwyn Avenue
3 Bed House | 22 m | Est. Value: £91,598
Location Comparison
Of the 111 addresses on Pentwyn Avenue, Mountain Ash, CF45, 14, Pentwyn Avenue, Mountain Ash comes out as the 107th largest and the 43rd most expensive in our analysis of the public data.
It is also £49k less expensive than the average property across the CF45 district.
More reading links
Schools Nearby
Public Transport Nearby
- Penrhiwceiber|1.0 km away
- Quakers Yard|2.2 km away
- Mountain Ash|2.7 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












