Our Data Sources
25, Castle Square, Merthyr Tydfil has a single entry in the Land Registry from September 2007 and a single entry in the EPC database dated August 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
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 25, Castle Square, Merthyr Tydfil, we estimate a market value of £109,828 and a rental value of £704 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £97,276 and £624 per month respectively.
Plot Size
HM Land Registry records the plot of land for 25, Castle Square, Merthyr Tydfil as measuring 38 m2.
That makes it the 18th largest plot in the postcode, where 21 of the 26 other houses have recorded plot data.
Energy Efficiency
25, Castle Square, Merthyr Tydfil has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 15 Aug 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
The most recent sale of 25, Castle Square, Merthyr Tydfil completed on 28th September 2007 at £65,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 this is the property's only sale.
Values of comparable properties have risen by 84.3% over the period since September 2007.
- Sold Sep 2007£65,000
Similar Properties Sold Nearby
Since 2010 27 properties similar to 25, Castle Square, Merthyr Tydfil have sold within a radius of 780 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 6th November 2025, was 22, Castle Square, Merthyr Tydfil, CF47 8NU, a freehold house which sold for £78,000.
Read more about house prices in CF47.
- Sold Nov 2025£78,000 | 2 Bed House22, Castle Square, Merthyr Tydfil, CF47 8NU22, Castle Square, Merthyr Tydfil, CF47 8NU
- Sold Dec 2024£67,500 | 2 Bed House6, Tydfil Terrace, Merthyr Tydfil, CF47 8SY6, Tydfil Terrace, Merthyr Tydfil, CF47 8SY
- Sold Nov 2024£85,000 | 2 Bed House19, Castle Square, Merthyr Tydfil, CF47 8NU19, Castle Square, Merthyr Tydfil, CF47 8NU
- Sold Sep 2024£90,000 | 2 Bed House10, William Street, Merthyr Tydfil, CF47 8ND10, William Street, Merthyr Tydfil, CF47 8ND
- Sold Jul 2024£85,500 | 3 Bed House17, Mount Terrace, Merthyr Tydfil, CF47 8TW17, Mount Terrace, Merthyr Tydfil, CF47 8TW
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £120,359, ranging from £92,792 to £186,447.
- 3 Emlyn Terrace
3 Bed House | 9 m | Est. Value: £92,792
- 2 Emlyn Terrace
3 Bed House | 10 m | Est. Value: £110,727
- 23 Castle Square
2 Bed House | 11 m | Est. Value: £104,598
- 4 Emlyn Terrace
3 Bed House | 12 m | Est. Value: £95,423
- 5 Emlyn Terrace
3 Bed House | 16 m | Est. Value: £93,457
Location Comparison
Of the 26 addresses on Castle Square, Merthyr Tydfil, CF47, 25, Castle Square, Merthyr Tydfil comes out as the 22nd largest and the 22nd most expensive in our analysis of the public data.
It is also £50k less expensive than the average property across the CF47 district.
More reading links
Schools Nearby
Public Transport Nearby
- Merthyr Tydfil|1.1 km away
- Pentre-Bach|3.5 km away
- Troed-y-rhiw|5.3 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












