Our Data Sources
14, Monmouth Street, Mountain Ash has 21 entries in the Land Registry , most recently in November 2025 and a single entry in the EPC database dated June 2025.
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 14, Monmouth Street, Mountain Ash would be worth £99,987, with a potential rental value of £728 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £88,560, with a rental value of £645 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
14, Monmouth Street, Mountain Ash occupies a 139 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 8th largest.
Energy Efficiency
14, Monmouth Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 13 Jun 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
14, Monmouth Street, Mountain Ash last changed hands on 13th November 2025, selling for £80,000. 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 27.7% since November 2025.
- Sold Nov 2025£80,000
- Sold Dec 2002£21,500
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 116 sales of comparable properties within 1.1 kilometres of 14, Monmouth Street, Mountain Ash across the last 2 years.
Most recently, 7, Monmouth Street, Mountain Ash, CF45 3NJ, a freehold house, sold at £96,000 on the 31st January 2024.
Read more about house prices in CF45.
- Sold Jan 2024£96,000 | 3 Bed House7, Monmouth Street, Mountain Ash, CF45 3NJ7, Monmouth Street, Mountain Ash, CF45 3NJ
- Sold Aug 2022£90,000 | 3 Bed House17, Monmouth Street, Mountain Ash, CF45 3NJ17, Monmouth Street, Mountain Ash, CF45 3NJ
- Sold Jun 2020£39,999 | 3 Bed House18, Monmouth Street, Mountain Ash, CF45 3NJ18, Monmouth Street, Mountain Ash, CF45 3NJ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks 14, Monmouth Street, Mountain Ash as the 19th largest and the 19th most expensive of the 20 addresses on Monmouth Street, Mountain Ash, CF45.
Against the CF45 postcode district average, it is £65k 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.
