Our Data Sources
4, Prosser Street, Mountain Ash has 2 entries in the Land Registry, most recently in April 2022 and a single entry in the EPC database dated June 2016.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
Price Range & Condition
In very good condition, we estimate 4, Prosser Street, Mountain Ash would be worth £109,804, with a potential rental value of £763 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £97,255, with a rental value of £676 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
4, Prosser Street, Mountain Ash occupies a 120 m2 plot as recorded by HM Land Registry.
All 10 other houses in this postcode have recorded plot sizes, and this one ranks as the 8th largest.
Energy Efficiency
4, Prosser Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 07 Jun 2016.
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, Prosser Street, Mountain Ash last changed hands on 1st April 2022, selling for £136,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has risen by 36.1% since April 2022.
- Sold Apr 2022£136,000
- Sold Feb 2021£66,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 233 sales of comparable properties within 590 metres of 4, Prosser Street, Mountain Ash since 2021.
Most recently, 61, Tanycoed Street, Mountain Ash, CF45 3YH, a freehold house, sold at £72,500 on the 31st March 2026.
Read more about house prices in CF45.
- Sold Mar 2026£72,500 | 3 Bed House61, Tanycoed Street, Mountain Ash, CF45 3YH61, Tanycoed Street, Mountain Ash, CF45 3YH
- Sold Feb 2026£105,000 | 3 Bed House6, Strand Street, Mountain Ash, CF45 4HG6, Strand Street, Mountain Ash, CF45 4HG
- Sold Nov 2025£122,000 | 3 Bed House13, Hughes Street, Mountain Ash, CF45 3UG13, Hughes Street, Mountain Ash, CF45 3UG
- Sold Nov 2025£116,000 | 3 Bed House55, Park Street, Mountain Ash, CF45 3YW55, Park Street, Mountain Ash, CF45 3YW
- Sold Oct 2025£125,000 | 3 Bed House9, Arthur Street, Mountain Ash, CF45 3BL9, Arthur Street, Mountain Ash, CF45 3BL
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 £127,704, ranging from £106,986 to £156,318.
- 3 Prosser Street
3 Bed House | 4 m | Est. Value: £106,986
- 5 Prosser Street
3 Bed House | 6 m | Est. Value: £114,405
- 2 Prosser Street
3 Bed House | 11 m | Est. Value: £112,184
- 7 Prosser Street
4 Bed House | 16 m | Est. Value: £139,149
- 1 Prosser Street
3 Bed House | 17 m | Est. Value: £114,340
Location Comparison
Our analysis of the public data ranks 4, Prosser Street, Mountain Ash as the 10th largest and the 10th most expensive of the 10 addresses on Prosser Street, Mountain Ash, CF45.
Against the CF45 postcode district average, it is £58k less expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Penrhiwceiber|900 m away
- Mountain Ash|900 m away
- Fernhill|2.2 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.












