Our Data Sources
21, Thomas Street, Merthyr Tydfil has no recent1 records in the the Land Registry and a single entry in the EPC database dated February 2026.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 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 21, Thomas Street, Merthyr Tydfil is in very good condition we estimate a sale value of £113,909 and a rental value of £743 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £100,891 and a rental value of £658 per month.
Plot Size
According to data from HM Land Registry, 21, Thomas Street, Merthyr Tydfil sits on a plot of 79 m2.
We have plot size data on 25 out of 32 other houses in the postcode and 21, Thomas Street, Merthyr Tydfil sits on the 25th largest plot.
Energy Efficiency
21, Thomas Street, Merthyr Tydfil has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 02 Feb 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
According to HM Land Registry, 21, Thomas Street, Merthyr Tydfil was last sold on 12th October 2001 for £27,950 and was recorded as a freehold house.
The property has only had this single sale since 1995.
- Sold Oct 2001£27,950
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 142 sales of properties similar to 21, Thomas Street, Merthyr Tydfil within a radius of 2.1 kilometres over the last 2 years.
The most recent example is 75, Bryntaf, Merthyr Tydfil, CF48 4PL, a freehold house which sold for £77,000 on the 19th March 2026.
Read more about house prices in CF48.
- Sold Mar 2026£77,000 | 3 Bed House75, Bryntaf, Merthyr Tydfil, CF48 4PL75, Bryntaf, Merthyr Tydfil, CF48 4PL
- Sold Aug 2025£85,000 | 3 Bed House21, Perthygleision, Merthyr Tydfil, CF48 4NZ21, Perthygleision, Merthyr Tydfil, CF48 4NZ
- Sold Oct 2023£105,000 | 3 Bed House49, Perthygleision, Merthyr Tydfil, CF48 4NZ49, Perthygleision, Merthyr Tydfil, CF48 4NZ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Thomas Street, Aberfan, Merthyr Tydfil, CF48 has a total of 32 addresses. According to our analysis of all the public data, 21, Thomas Street, Merthyr Tydfil is the 23rd largest and the 23rd most expensive property on the street.
When compared to the postcode district it is £66k less expensive than the average property in CF48.
More reading links
Schools Nearby
Public Transport Nearby
- Merthyr Vale|400 m away
- Penrhiwceiber|2.2 km away
- Mountain Ash|2.4 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.
