Our Data Sources
51, Duffryn Street, Mountain Ash has a single entry in the Land Registry from March 2019 and no records in the EPC database.
We combine this sold price information with public data of neighbouring properties to estimate the attributes and values.
The local information is scored as 2 out of 5 and is considered of medium 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 51, Duffryn Street, Mountain Ash is in very good condition we estimate a sale value of £126,315 and a rental value of £838 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £111,879 and a rental value of £742 per month.
Plot Size
According to data from HM Land Registry, 51, Duffryn Street, Mountain Ash sits on a plot of 113 m2.
We have plot size data on 15 out of 19 other houses in the postcode and 51, Duffryn Street, Mountain Ash sits on the 12th largest plot.
Sold Prices
According to HM Land Registry, 51, Duffryn Street, Mountain Ash was last sold on 27th March 2019 for £70,000 and was recorded as a freehold house.
The property has only had this single sale since 1995.
Since March 2019, the market for similar properties has risen by 89.3%.
- Sold Mar 2019£70,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 274 sales of properties similar to 51, Duffryn Street, Mountain Ash within a radius of 510 metres since 2021.
The most recent example is 26, Woodland Terrace, Mountain Ash, CF45 3RF, a freehold house which sold for £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.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £95,362, ranging from £65,551 to £126,500.
- 52 Duffryn Street
2 Bed House | 6 m | Est. Value: £95,136
- 50 Duffryn Street
3 Bed House | 6 m | Est. Value: £113,275
- 49 Duffryn Street
3 Bed House | 10 m | Est. Value: £120,688
- 53 Duffryn Street
3 Bed House | 11 m | Est. Value: £111,724
- 48 Duffryn Street
3 Bed House | 15 m | Est. Value: £106,087
Location Comparison
Duffryn Street, Mountain Ash, CF45 has a total of 93 addresses. According to our analysis of all the public data, 51, Duffryn Street, Mountain Ash is the 21st largest and the 16th most expensive property on the street.
When compared to the postcode district it is £40k less expensive than the average property in CF45.
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
According to recent data from Ofcom, Superfast Broadband is available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.












