Our Data Sources
11, Nash Street, Mountain Ash has no records in the the Land Registry and a single entry in the EPC database dated May 2023.
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
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 11, Nash Street, Mountain Ash, we estimate a market value of £123,773 and a rental value of £812 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £109,628 and £719 per month respectively.
Plot Size
HM Land Registry records the plot of land for 11, Nash Street, Mountain Ash as measuring 109 m2.
That makes it the 3rd largest plot in the postcode, where 13 of the 19 other houses have recorded plot data.
Energy Efficiency
11, Nash Street, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 20 May 2023.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Similar Properties Sold Nearby
Over the past 2 years 150 properties similar to 11, Nash Street, Mountain Ash have sold within a radius of 1.4 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 5th November 2025, was 30, Aberdare Road, Mountain Ash, CF45 4NY, a freehold house which sold for £165,000.
Read more about house prices in CF45.
- Sold Nov 2025£165,000 | 3 Bed House30, Aberdare Road, Mountain Ash, CF45 4NY30, Aberdare Road, Mountain Ash, CF45 4NY
- Sold May 2025£105,000 | 3 Bed House32, Park Street, Mountain Ash, CF45 4PF32, Park Street, Mountain Ash, CF45 4PF
- Sold Dec 2021£120,000 | 3 Bed House47, Park Street, Mountain Ash, CF45 4PF47, Park Street, Mountain Ash, CF45 4PF
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 20 addresses on Nash Street, Abercynon, Mountain Ash, CF45, 11, Nash Street, Mountain Ash comes out as the 9th largest and the 10th most expensive in our analysis of the public data.
It is also £43k less expensive than the average property across the CF45 district.
More reading links
Schools Nearby
Public Transport Nearby
- Abercynon|400 m away
- Quakers Yard|2.0 km away
- Penrhiwceiber|3.5 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












