4 Street, Mountain Ash
4 Street, Mountain Ash
Description & Estimates







The public record describes 4 Street, Mountain Ash as a period house with 731 ft2 of internal area, sitting on a 121 m2 plot.
In this area, houses of this size normally have 3 bedrooms with a garden.
4 Street, Mountain Ash has an estimated sale value of £119,116 and an estimated rental value of £778 per month, assuming reasonable condition and based on the information available.
London Street, Mountain Ash, CF45 lies within the CF45 postal district.
Our Data Sources
4 Street, Mountain Ash has no records in the the Land Registry and a single entry in the EPC database dated January 2024.
We combine this information with public data 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
In very good condition, we estimate 4 Street, Mountain Ash would be worth £125,072, with a potential rental value of £817 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £110,778, with a rental value of £724 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 4 Street, Mountain Ash has moved up by £2,931 (2.5%) over the last year. During the same period, its estimated monthly rental value has increased by £31 (3.9%). The property's estimated gross yield is currently 7.8%.
Plot Size
4 Street, Mountain Ash occupies a 121 m2 plot as recorded by HM Land Registry.
Of the 41 other houses in this postcode, 40 have recorded plot sizes, and this one ranks as the 21st largest.
Energy Efficiency
4 Street, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 14 Jan 2024.
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 560 metres of 4 Street, Mountain Ash across the last 2 years.
Most recently, 50, Phillip Street, Mountain Ash, CF45 4BG, a freehold house, sold at £125,000 on the 4th July 2025.
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
Our analysis of the public data ranks 4 Street, Mountain Ash as the 23rd largest and the 23rd most expensive of the 41 addresses on London Street, Mountain Ash, CF45.
Against the CF45 postcode district average, it is £39k less expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
Mountain Ash station is the nearest stop to 4 Street, Mountain Ash at 300 metres away.
- 300mMountain Ash
- 1.4kmFernhill
- 2.0kmPenrhiwceiber
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.

