Our Data Sources
31, Lock Street, Mountain Ash has 31 entries in the Land Registry , most recently in March 2008 and no records in the EPC database.
We combine this sold price information with public data of neighbouring properties to estimate the attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 31, Lock Street, Mountain Ash, we estimate a market value of £179,759 and a rental value of £960 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £159,215 and £851 per month respectively.
Plot Size
HM Land Registry records the plot of land for 31, Lock Street, Mountain Ash as measuring 137 m2.
That makes it the 15th largest plot in the postcode, where all 33 other houses have recorded plot data.
Sold Prices
The most recent sale of 31, Lock Street, Mountain Ash completed on 12th March 2008 at £105,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold 3 times.
Values of comparable properties have risen by 46.1% over the period since March 2008.
- Sold Mar 2008£105,000
- Sold Aug 2000£30,500
- Sold Feb 1997£30,000
Similar Properties Sold Nearby
Over the past 2 years 176 properties similar to 31, Lock Street, Mountain Ash have sold within a radius of 1.3 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 11th September 2025, was 24, Fife Street, Mountain Ash, CF45 4TU, a freehold house which sold for £143,000.
Read more about house prices in CF45.
- Sold Sep 2025£143,000 | 3 Bed House24, Fife Street, Mountain Ash, CF45 4TU24, Fife Street, Mountain Ash, CF45 4TU
- Sold Apr 2023£165,000 | 3 Bed House15, Fife Street, Mountain Ash, CF45 4TU15, Fife Street, Mountain Ash, CF45 4TU
- Sold Aug 2020£141,000 | 3 Bed House14, Fife Street, Mountain Ash, CF45 4TU14, Fife Street, Mountain Ash, CF45 4TU
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 82 addresses on Lock Street, Abercynon, Mountain Ash, CF45, 31, Lock Street, Mountain Ash comes out as the 33rd largest and the 27th most expensive in our analysis of the public data.
It is also £11k more expensive than the average property across the CF45 district.
More reading links
Schools Nearby
Public Transport Nearby
- Abercynon|600 m away
- Quakers Yard|1.3 km away
- Penrhiwceiber|3.5 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












