Our Data Sources
4, Coplestone Street, Mountain Ash has a single entry in the Land Registry from February 2025 and a single entry in the EPC database dated April 2024.
We combine this information with that 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 4, Coplestone Street, Mountain Ash would be worth £141,622, with a potential rental value of £862 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £125,437, with a rental value of £763 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
4, Coplestone Street, Mountain Ash occupies a 206 m2 plot as recorded by HM Land Registry.
Of the 44 other houses in this postcode, 38 have recorded plot sizes, and this one ranks as the 10th largest.
Energy Efficiency
4, Coplestone Street, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 18 Apr 2024.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
4, Coplestone Street, Mountain Ash last changed hands on 3rd February 2025, selling for £73,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has risen by 10.4% since February 2025.
- Sold Feb 2025£73,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 152 sales of comparable properties within 640 metres of 4, Coplestone Street, Mountain Ash since 2019.
Most recently, 9, Clarence Street, Mountain Ash, CF45 3BB, a freehold house, sold at £130,000 on the 17th April 2026.
Read more about house prices in CF45.
- Sold Apr 2026£130,000 | 4 Bed House9, Clarence Street, Mountain Ash, CF45 3BB9, Clarence Street, Mountain Ash, CF45 3BB
- Sold Feb 2026£150,000 | 3 Bed House3, Gwernifor Street, Mountain Ash, CF45 3NA3, Gwernifor Street, Mountain Ash, CF45 3NA
- Sold Dec 2025£130,000 | 3 Bed House11, Clarence Street, Mountain Ash, CF45 3BB11, Clarence Street, Mountain Ash, CF45 3BB
- Sold Nov 2025£150,000 | 3 Bed House29, Coplestone Street, Mountain Ash, CF45 3LY29, Coplestone Street, Mountain Ash, CF45 3LY
- Sold Jul 2025£145,000 | 3 Bed House42, Coplestone Street, Mountain Ash, CF45 3LY42, Coplestone Street, Mountain Ash, CF45 3LY
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £136,946, ranging from £122,519 to £158,168.
- 2 Coplestone Street
3 Bed House | 6 m | Est. Value: £135,501
- 8 Coplestone Street
3 Bed House | 11 m | Est. Value: £133,623
- 10 Coplestone Street
3 Bed House | 16 m | Est. Value: £134,252
- 12 Coplestone Street
3 Bed House | 22 m | Est. Value: £132,990
- 3 Coplestone Street
3 Bed House | 28 m | Est. Value: £130,425
Location Comparison
Our analysis of the public data ranks 4, Coplestone Street, Mountain Ash as the 14th largest and the 14th most expensive of the 44 addresses on Coplestone Street, Mountain Ash, CF45.
Against the CF45 postcode district average, it is £25k less expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Mountain Ash|600 m away
- Fernhill|1.4 km away
- Penrhiwceiber|1.7 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












