Our Data Sources
16, Duffryn Street, Mountain Ash has a single entry in the Land Registry from February 2021 and a single entry in the EPC database dated March 2023.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high accuracy.
Price Range & Condition
In very good condition, we estimate 16, Duffryn Street, Mountain Ash would be worth £111,132, with a potential rental value of £787 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £98,431, with a rental value of £697 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
16, Duffryn Street, Mountain Ash occupies a 87 m2 plot as recorded by HM Land Registry.
Of the 35 other houses in this postcode, 31 have recorded plot sizes, and this one ranks as the 21st largest.
Energy Efficiency
16, Duffryn Street, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 14 Mar 2023.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
16, Duffryn Street, Mountain Ash last changed hands on 5th February 2021, selling for £83,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has risen by 61.9% since February 2021.
- Sold Feb 2021£83,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 167 sales of comparable properties within 540 metres of 16, Duffryn Street, Mountain Ash since 2016.
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 Nov 2025£120,000 | 3 Bed House29, Cliff Street, Mountain Ash, CF45 3LE29, Cliff Street, Mountain Ash, CF45 3LE
- Sold Sep 2025£112,000 | 3 Bed House31, Napier Street, Mountain Ash, CF45 3HW31, Napier Street, Mountain Ash, CF45 3HW
- Sold Jun 2025£95,000 | 3 Bed House33, Duffryn Street, Mountain Ash, CF45 3NU33, Duffryn Street, Mountain Ash, CF45 3NU
- Sold Oct 2024£127,500 | 3 Bed House74, Duffryn Street, Mountain Ash, CF45 3HR74, Duffryn Street, Mountain Ash, CF45 3HR
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 £102,841, ranging from £91,617 to £122,630.
- 18 Duffryn Street
3 Bed House | 4 m | Est. Value: £99,182
- 12 Duffryn Street
3 Bed House | 9 m | Est. Value: £98,363
- 10 Duffryn Street
3 Bed House | 14 m | Est. Value: £122,630
- 13 Duffryn Street
3 Bed House | 17 m | Est. Value: £111,986
- 11 Duffryn Street
3 Bed House | 18 m | Est. Value: £93,299
Location Comparison
Our analysis of the public data ranks 16, Duffryn Street, Mountain Ash as the 38th largest and the 56th most expensive of the 93 addresses on Duffryn Street, Mountain Ash, CF45.
Against the CF45 postcode district average, it is £54k less expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Mountain Ash|400 m away
- Fernhill|1.1 km away
- Penrhiwceiber|2.1 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.












