Our Data Sources
14, Union Street, Mountain Ash has no records in the Land Registry and a single entry in the EPC database dated July 2020.
We combine this information with public data 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
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 14, Union Street, Mountain Ash is in very good condition we estimate a sale value of £59,601 and a rental value of £452 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £52,789 and a rental value of £400 per month.
Energy Efficiency
14, Union Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 08 Jul 2020.
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 10 sales of properties similar to 14, Union Street, Mountain Ash within a radius of 510 metres since 2014.
The most recent example is 9, Union Street, Mountain Ash, CF45 3NY, a freehold house which sold for £90,000 on the 24th October 2025.
Read more about house prices in CF45.
- Sold Oct 2025£90,000 | 3 Bed House9, Union Street, Mountain Ash, CF45 3NY9, Union Street, Mountain Ash, CF45 3NY
- Sold May 2022£58,000 | 3 Bed House56, High Street, Mountain Ash, CF45 3PE56, High Street, Mountain Ash, CF45 3PE
- Sold Nov 2020£50,000 | 2 Bed House61, High Street, Mountain Ash, CF45 3PE61, High Street, Mountain Ash, CF45 3PE
- Sold Sep 2020£53,000 | 2 Bed House54, High Street, Mountain Ash, CF45 3PE54, High Street, Mountain Ash, CF45 3PE
- Sold Jan 2020£36,000 | 2 Bed House62, High Street, Mountain Ash, CF45 3PE62, High Street, Mountain Ash, CF45 3PE
Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Explore Nearby Properties
The surrounding properties have an average estimated value of £73,062, ranging from £41,310 to £109,982.
- 7 Union Street
2 Bed House | 11 m | Est. Value: £53,021
- 8 Union Street
3 Bed House | 14 m | Est. Value: £56,252
- 9 Union Street
3 Bed House | 19 m | Est. Value: £58,266
- 10 Union Street
3 Bed House | 23 m | Est. Value: £66,558
- 11 Union Street
3 Bed House | 28 m | Est. Value: £68,479
Location Comparison
Union Street, Mountain Ash, CF45 has a total of 11 addresses. According to our analysis of all the public data, 14, Union Street, Mountain Ash is the 6th largest and the 6th most expensive property on the street.
When compared to the postcode district it is £103k less expensive than the average property in CF45.
More reading links
Schools Nearby
Public Transport Nearby
- Mountain Ash|400 m away
- Fernhill|1.1 km away
- Penrhiwceiber|2.1 km away
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.
