13A, Trem Y Dyffryn
13A, Trem Y Dyffryn
Description & Estimates







The public record describes 13A, Trem Y Dyffryn, Mountain Ash as a modern house with 990 ft2 of internal area, sitting on a 275 m2 plot.
In this area, houses of this size normally have 3 bedrooms with a garden.
13A, Trem Y Dyffryn, Mountain Ash has an estimated sale value of £249,938 and an estimated rental value of £1,161 per month, assuming reasonable condition and based on the information available.
Trem Y Dyffryn, Mountain Ash, CF45 lies within the CF45 postal district.
Our Data Sources
13A, Trem Y Dyffryn, Mountain Ash has no records in the the Land Registry and a single entry in the EPC database dated January 2026.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high accuracy.
Price Range & Condition
In very good condition, we estimate 13A, Trem Y Dyffryn, Mountain Ash would be worth £262,435, with a potential rental value of £1,219 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £232,442, with a rental value of £1,080 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Recent Market Change
The estimated sale value of 13A, Trem Y Dyffryn, Mountain Ash has moved up by £6,150 (2.5%) over the last year. During the same period, its estimated monthly rental value has increased by £46 (3.9%). The property's estimated gross yield is currently 5.6%.
Plot Size
13A, Trem Y Dyffryn, Mountain Ash occupies a 275 m2 plot as recorded by HM Land Registry.
Of the 34 other houses in this postcode, 33 have recorded plot sizes, and this one ranks as the 7th largest.
Energy Efficiency
13A, Trem Y Dyffryn, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 12 Jan 2026.
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
Land Registry records and our Estate Agent network show 3 sales of comparable properties within 850 metres of 13A, Trem Y Dyffryn, Mountain Ash across the last 2 years.
Most recently, 21, Trem Y Dyffryn, Mountain Ash, CF45 4AQ, a freehold house, sold at £160,000 on the 27th March 2024.
Read more about house prices in CF45.
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Our analysis of the public data ranks 13A, Trem Y Dyffryn, Mountain Ash as the 20th largest and the 15th most expensive of the 35 addresses on Trem Y Dyffryn, Mountain Ash, CF45.
Against the CF45 postcode district average, it is £92k more expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
Mountain Ash station is the nearest stop to 13A, Trem Y Dyffryn, Mountain Ash at 800 metres away.
- 800mMountain Ash
- 900mFernhill
- 2.5kmPenrhiwceiber
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a very low risk of flooding.

