Our Data Sources
71, Thomas Street, Mountain Ash has no records in the Land Registry and a single entry in the EPC database dated March 2025.
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
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 71, Thomas Street, Mountain Ash, we estimate a market value of £123,273 and a rental value of £822 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £109,185 and £728 per month respectively.
Energy Efficiency
71, Thomas Street, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 20 Mar 2025.
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
Since 2016 180 properties similar to 71, Thomas Street, Mountain Ash have sold within a radius of 680 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 20th February 2026, was 12, Thomas Street, Mountain Ash, CF45 3BU, a freehold house which sold for £145,000.
Read more about house prices in CF45.
- Sold Feb 2026£145,000 | 3 Bed House12, Thomas Street, Mountain Ash, CF45 3BU12, Thomas Street, Mountain Ash, CF45 3BU
- Sold Nov 2025£122,000 | 3 Bed House13, Hughes Street, Mountain Ash, CF45 3UG13, Hughes Street, Mountain Ash, CF45 3UG
- Sold Oct 2025£125,000 | 3 Bed House9, Arthur Street, Mountain Ash, CF45 3BL9, Arthur Street, Mountain Ash, CF45 3BL
- Sold Jul 2025£95,000 | 3 Bed House38, Albert Street, Mountain Ash, CF45 3BA38, Albert Street, Mountain Ash, CF45 3BA
- Sold May 2025£101,000 | 3 Bed House40, Arthur Street, Mountain Ash, CF45 3BL40, Arthur Street, Mountain Ash, CF45 3BL
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 £115,713, ranging from £97,114 to £136,977.
- 65 Thomas Street
3 Bed House | 17 m | Est. Value: £124,576
- 63 Thomas Street
3 Bed House | 21 m | Est. Value: £123,802
- 20 Arthur Street
3 Bed House | 21 m | Est. Value: £97,114
- 19 Arthur Street
3 Bed House | 24 m | Est. Value: £111,334
- 21 Arthur Street
3 Bed House | 24 m | Est. Value: £107,351
Location Comparison
Of the 73 addresses on Thomas Street, Mountain Ash, CF45, 71, Thomas Street, Mountain Ash comes out as the 60th largest and the 64th most expensive in our analysis of the public data.
It is also £43k less expensive than the average property across the CF45 district.
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Schools Nearby
Public Transport Nearby
- Mountain Ash|1.0 km away
- Penrhiwceiber|1.0 km away
- Fernhill|2.1 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.












