Our Data Sources
3, Monmouth Street, Mountain Ash has 31 entries in the Land Registry , most recently in September 2010 and a single entry in the EPC database dated April 2026.
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 3, Monmouth Street, Mountain Ash would be worth £110,095, with a potential rental value of £762 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £97,512, with a rental value of £675 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
3, Monmouth Street, Mountain Ash occupies a 145 m2 plot as recorded by HM Land Registry.
Of the 20 other houses in this postcode, 16 have recorded plot sizes, and this one ranks as the 5th largest.
Energy Efficiency
3, Monmouth Street, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 24 Apr 2026.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
3, Monmouth Street, Mountain Ash last changed hands on 30th September 2010, selling for £86,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold 3 times since 1995.
The market for similar properties has risen by 126.8% since September 2010.
- Sold Sep 2010£86,000
- Sold Oct 2006£49,500
- Sold Jul 2005£38,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 269 sales of comparable properties within 1.2 kilometres of 3, Monmouth Street, Mountain Ash across the last 2 years.
Most recently, 21, Glamorgan Street, Mountain Ash, CF45 3HX, a freehold house, sold at £123,000 on the 11th April 2025.
Read more about house prices in CF45.
- Sold Apr 2025£123,000 | 3 Bed House21, Glamorgan Street, Mountain Ash, CF45 3HX21, Glamorgan Street, Mountain Ash, CF45 3HX
- Sold Nov 2023£105,000 | 3 Bed House24, Glamorgan Street, Mountain Ash, CF45 3HX24, Glamorgan Street, Mountain Ash, CF45 3HX
- Sold Jul 2023£85,000 | 3 Bed House1, Glamorgan Street, Mountain Ash, CF45 3HX1, Glamorgan Street, Mountain Ash, CF45 3HX
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks 3, Monmouth Street, Mountain Ash as the 2nd largest and the 2nd most expensive of the 20 addresses on Monmouth Street, Mountain Ash, CF45.
Against the CF45 postcode district average, it is £56k less expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Penrhiwceiber|700 m away
- Mountain Ash|2.2 km away
- Quakers Yard|2.7 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












