Our Data Sources
17 Street, Mountain Ash has a single entry in the Land Registry from February 2020 and a single entry in the EPC database dated October 2014.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 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 17 Street, Mountain Ash, we estimate a market value of £126,821 and a rental value of £844 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £112,327 and £748 per month respectively.
Plot Size
HM Land Registry records the plot of land for 17 Street, Mountain Ash as measuring 125 m2.
That makes it the 15th largest plot in the postcode, where 40 of the 41 other houses have recorded plot data.
Energy Efficiency
17 Street, Mountain Ash has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 08 Oct 2014.
The property is not connected to mains gas and has partial double glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 17 Street, Mountain Ash completed on 21st February 2020 at £62,500 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 52.5% over the period since February 2020.
- Sold Feb 2020£62,500
Similar Properties Sold Nearby
Over the past 2 years 201 properties similar to 17 Street, Mountain Ash have sold within a radius of 590 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 4th July 2025, was 50, Phillip Street, Mountain Ash, CF45 4BG, a freehold house which sold for £125,000.
Read more about house prices in CF45.
- Sold Jul 2025£125,000 | 3 Bed House50, Phillip Street, Mountain Ash, CF45 4BG50, Phillip Street, Mountain Ash, CF45 4BG
- Sold Apr 2025£120,000 | 3 Bed House22, Allen Street, Mountain Ash, CF45 4BD22, Allen Street, Mountain Ash, CF45 4BD
- Sold May 2024£138,500 | 3 Bed House42, Phillip Street, Mountain Ash, CF45 4BG42, Phillip Street, Mountain Ash, CF45 4BG
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 41 addresses on London Street, Mountain Ash, CF45, 17 Street, Mountain Ash comes out as the 27th largest and the 27th most expensive in our analysis of the public data.
It is also £40k less expensive than the average property across the CF45 district.
More reading links
Schools Nearby
Public Transport Nearby
- Mountain Ash|300 m away
- Fernhill|1.4 km away
- Penrhiwceiber|2.0 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.
