Our Data Sources
21, North Street, Mountain Ash has a single entry in the Land Registry from March 2019 and a single entry in the EPC database dated September 2022.
We combine this information with that 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 21, North Street, Mountain Ash, we estimate a market value of £153,194 and a rental value of £902 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £135,686 and £799 per month respectively.
Plot Size
HM Land Registry records the plot of land for 21, North Street, Mountain Ash as measuring 117 m2.
That makes it the 12th largest plot in the postcode, where 31 of the 37 other houses have recorded plot data.
Energy Efficiency
21, North Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 17 Sep 2022.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 21, North Street, Mountain Ash completed on 8th March 2019 at £70,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 this is the property's only sale.
Values of comparable properties have risen by 59.7% over the period since March 2019.
- Sold Mar 2019£70,000
Similar Properties Sold Nearby
Over the past 2 years 335 properties similar to 21, North Street, Mountain Ash have sold within a radius of 1.2 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 31st October 2025, was 68, Mountain Ash Road, Mountain Ash, CF45 4PR, a freehold house which sold for £142,500.
Read more about house prices in CF45.
- Sold Oct 2025£142,500 | 3 Bed House68, Mountain Ash Road, Mountain Ash, CF45 4PR68, Mountain Ash Road, Mountain Ash, CF45 4PR
- Sold Oct 2025£118,000 | 3 Bed House80, Mountain Ash Road, Mountain Ash, CF45 4PR80, Mountain Ash Road, Mountain Ash, CF45 4PR
- Sold Sep 2025£139,950 | 3 Bed House2, Bassett Street, Mountain Ash, CF45 4SP2, Bassett Street, Mountain Ash, CF45 4SP
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 37 addresses on North Street, Abercynon, Mountain Ash, CF45, 21, North Street, Mountain Ash comes out as the 28th largest and the 26th most expensive in our analysis of the public data.
It is also £15k less expensive than the average property across the CF45 district.
More reading links
Schools Nearby
Public Transport Nearby
- Abercynon|300 m away
- Quakers Yard|1.6 km away
- Penrhiwceiber|3.3 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.
