Our Data Sources
1, Lock Street, Mountain Ash has no recent1 records in the the Land Registry and a single entry in the EPC database dated February 2015.
We combine this information with public data 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
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 1, Lock Street, Mountain Ash is in very good condition we estimate a sale value of £189,656 and a rental value of £957 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £167,981 and a rental value of £848 per month.
Plot Size
According to data from HM Land Registry, 1, Lock Street, Mountain Ash sits on a plot of 136 m2.
We have plot size data on 33 out of 33 other houses in the postcode and 1, Lock Street, Mountain Ash sits on the 16th largest plot.
Energy Efficiency
1, Lock Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 03 Feb 2015.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
According to HM Land Registry, 1, Lock Street, Mountain Ash was last sold on 8th December 2003 for £87,000 and was recorded as a freehold house.
The property has had 2 sales since 1995.
- Sold Dec 2003£87,000
- Sold Dec 1996£42,500
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 115 sales of properties similar to 1, Lock Street, Mountain Ash within a radius of 1.3 kilometres over the last 2 years.
The most recent example is 20, Fife Street, Mountain Ash, CF45 4TU, a freehold house which sold for £170,000 on the 5th December 2025.
Read more about house prices in CF45.
- Sold Dec 2025£170,000 | 3 Bed House20, Fife Street, Mountain Ash, CF45 4TU20, Fife Street, Mountain Ash, CF45 4TU
- Sold Jul 2025£165,000 | 3 Bed House5, Gwendoline Terrace, Mountain Ash, CF45 4TE5, Gwendoline Terrace, Mountain Ash, CF45 4TE
- Sold Apr 2023£165,000 | 3 Bed House15, Fife Street, Mountain Ash, CF45 4TU15, Fife Street, Mountain Ash, CF45 4TU
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Lock Street, Abercynon, Mountain Ash, CF45 has a total of 82 addresses. According to our analysis of all the public data, 1, Lock Street, Mountain Ash is the 14th largest and the 13th most expensive property on the street.
When compared to the postcode district it is £20k more expensive than the average property in CF45.
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
According to recent data from Ofcom, Superfast Broadband is available in this area.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.












