Our Data Sources
49, Duffryn Street, Mountain Ash has no records in the Land Registry and a single entry in the EPC database dated February 2016.
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 49, Duffryn Street, Mountain Ash would be worth £126,723, with a potential rental value of £838 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £112,240, with a rental value of £743 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
49, Duffryn Street, Mountain Ash occupies a 118 m2 plot as recorded by HM Land Registry.
Of the 19 other houses in this postcode, 15 have recorded plot sizes, and this one ranks as the 11th largest.
Energy Efficiency
49, Duffryn Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 10 Feb 2016.
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 269 sales of comparable properties within 510 metres of 49, Duffryn Street, Mountain Ash since 2021.
Most recently, 26, Woodland Terrace, Mountain Ash, CF45 3RF, a freehold house, sold at £130,000 on the 1st May 2026.
Read more about house prices in CF45.
- Sold May 2026£130,000 | 3 Bed House26, Woodland Terrace, Mountain Ash, CF45 3RF26, Woodland Terrace, Mountain Ash, CF45 3RF
- Sold Apr 2026£95,000 | 3 Bed House16, Lyle Street, Mountain Ash, CF45 3RG16, Lyle Street, Mountain Ash, CF45 3RG
- Sold Nov 2025£115,000 | 3 Bed House81, Duffryn Street, Mountain Ash, CF45 3HR81, Duffryn Street, Mountain Ash, CF45 3HR
- Sold Sep 2025£112,000 | 3 Bed House31, Napier Street, Mountain Ash, CF45 3HW31, Napier Street, Mountain Ash, CF45 3HW
- Sold Jul 2025£49,000 | 3 Bed House49, Commercial Street, Mountain Ash, CF45 3PS49, Commercial Street, Mountain Ash, CF45 3PS
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 £93,050, ranging from £65,551 to £128,395.
- 48 Duffryn Street
3 Bed House | 4 m | Est. Value: £106,087
- 50 Duffryn Street
3 Bed House | 5 m | Est. Value: £113,275
- 51 Duffryn Street
3 Bed House | 10 m | Est. Value: £120,300
- 47 Duffryn Street
3 Bed House | 13 m | Est. Value: £115,557
- 52 Duffryn Street
2 Bed House | 16 m | Est. Value: £95,136
Location Comparison
Our analysis of the public data ranks 49, Duffryn Street, Mountain Ash as the 20th largest and the 15th most expensive of the 93 addresses on Duffryn Street, Mountain Ash, CF45.
Against the CF45 postcode district average, it is £40k less expensive than the typical property.
More reading links
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.












