Our Data Sources
12, The Triangle, Mountain Ash has no recent1 records in the the Land Registry and a single entry in the EPC database dated October 2020.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high 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 12, The Triangle, Mountain Ash is in very good condition we estimate a sale value of £156,182 and a rental value of £928 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £138,333 and a rental value of £822 per month.
Plot Size
According to data from HM Land Registry, 12, The Triangle, Mountain Ash sits on a plot of 135 m2.
We have plot size data on 36 out of 41 other houses in the postcode and 12, The Triangle, Mountain Ash sits on the 10th largest plot.
Energy Efficiency
12, The Triangle, Mountain Ash has an Energy Performance Rating (EPC) of F. This is based on the most recent assessment, dated 27 Oct 2020.
The property is not connected to mains gas and has fully double glazed windows. It is heated using Room heaters, electric.
Sold Prices
According to HM Land Registry, 12, The Triangle, Mountain Ash was last sold on 27th March 2006 for £73,500 and was recorded as a freehold house.
The property has only had this single sale since 1995.
- Sold Mar 2006£73,500
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 165 sales of properties similar to 12, The Triangle, Mountain Ash within a radius of 860 metres over the last 2 years.
The most recent example is 27, The Triangle, Mountain Ash, CF45 4BA, a freehold house which sold for £175,000 on the 18th July 2025.
Read more about house prices in CF45.
- Sold Jul 2025£175,000 | 3 Bed House27, The Triangle, Mountain Ash, CF45 4BA27, The Triangle, Mountain Ash, CF45 4BA
- Sold Jun 2022£129,995 | 3 Bed House4, Copley Street, Mountain Ash, CF45 4AS4, Copley Street, Mountain Ash, CF45 4AS
- Sold Jan 2022£85,000 | 3 Bed House21, The Triangle, Mountain Ash, CF45 4BA21, The Triangle, Mountain Ash, CF45 4BA
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
The Triangle, Mountain Ash, CF45 has a total of 41 addresses. According to our analysis of all the public data, 12, The Triangle, Mountain Ash is the 34th largest and the 34th most expensive property on the street.
When compared to the postcode district it is £12k less expensive than the average property in CF45.
More reading links
Schools Nearby
Public Transport Nearby
- Mountain Ash|700 m away
- Fernhill|1.3 km away
- Penrhiwceiber|2.3 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 is available in the area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.












