Our Data Sources
44, Duffryn Street, Mountain Ash has no records in the Land Registry and a single entry in the EPC database dated January 2024.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
Price Range & Condition
In very good condition, we estimate 44, Duffryn Street, Mountain Ash would be worth £132,573, with a potential rental value of £851 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £117,422, with a rental value of £754 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
44, Duffryn Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 23 Jan 2024.
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
Land Registry records and our Estate Agent network show 246 sales of comparable properties within 510 metres of 44, Duffryn Street, Mountain Ash since 2021.
Most recently, 16, Lyle Street, Mountain Ash, CF45 3RG, a freehold house, sold at £95,000 on the 24th April 2026.
Read more about house prices in CF45.
- Sold Apr 2026£95,000 | 3 Bed House16, Lyle Street, Mountain Ash, CF45 3RG16, Lyle Street, Mountain Ash, CF45 3RG
- Sold Feb 2026£142,500 | 3 Bed HouseAberpennar Cottage, Dover Street, Mountain Ash, CF45 3HYAberpennar Cottage, Dover Street, Mountain Ash, CF45 3HY
- Sold Dec 2025£95,000 | 3 Bed House8, Woodland Terrace, Mountain Ash, CF45 3RF8, Woodland Terrace, Mountain Ash, CF45 3RF
- Sold Dec 2025£112,500 | 3 Bed House24, Pryce Street, Mountain Ash, CF45 3NT24, Pryce Street, Mountain Ash, CF45 3NT
- Sold Nov 2025£115,000 | 3 Bed House81, Duffryn Street, Mountain Ash, CF45 3HR81, Duffryn Street, Mountain Ash, CF45 3HR
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 £87,284, ranging from £51,053 to £135,383.
- 42 Duffryn Street
3 Bed House | 12 m | Est. Value: £135,383
- 46 Duffryn Street
3 Bed House | 17 m | Est. Value: £114,802
- 22 Chancery Lane
3 Bed House | 18 m | Est. Value: £85,087
- 47 Duffryn Street
3 Bed House | 22 m | Est. Value: £115,557
- 20 Chancery Lane
3 Bed House | 25 m | Est. Value: £79,715
Location Comparison
Our analysis of the public data ranks 44, Duffryn Street, Mountain Ash as the 7th largest and the 7th most expensive of the 93 addresses on Duffryn Street, Mountain Ash, CF45.
Against the CF45 postcode district average, it is £34k less expensive than the typical property.
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Schools Nearby
Public Transport Nearby
- Mountain Ash|300 m away
- Fernhill|1.2 km away
- Penrhiwceiber|2.0 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












