Our Data Sources
40, St. Tydfils Avenue, Merthyr Tydfil has no records in the Land Registry and a single entry in the EPC database dated June 2021.
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
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 40, St. Tydfils Avenue, Merthyr Tydfil, we estimate a market value of £137,643 and a rental value of £829 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £121,912 and £734 per month respectively.
Plot Size
HM Land Registry records the plot of land for 40, St. Tydfils Avenue, Merthyr Tydfil as measuring 122 m2.
That makes it the largest plot in the postcode, where 16 of the 19 other houses have recorded plot data.
Energy Efficiency
40, St. Tydfils Avenue, Merthyr Tydfil has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 25 Jun 2021.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Similar Properties Sold Nearby
Since 2019 173 properties similar to 40, St. Tydfils Avenue, Merthyr Tydfil have sold within a radius of 490 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 20th May 2026, was 47, Gilfach Cynon, Merthyr Tydfil, CF47 0PG, a freehold house which sold for £130,000.
Read more about house prices in CF47.
- Sold May 2026£130,000 | 3 Bed House47, Gilfach Cynon, Merthyr Tydfil, CF47 0PG47, Gilfach Cynon, Merthyr Tydfil, CF47 0PG
- Sold Dec 2025£90,000 | 3 Bed House11, Mary Street, Merthyr Tydfil, CF47 0PY11, Mary Street, Merthyr Tydfil, CF47 0PY
- Sold Nov 2025£172,000 | 3 Bed House17, Mary Street, Merthyr Tydfil, CF47 0PY17, Mary Street, Merthyr Tydfil, CF47 0PY
- Sold Sep 2025£125,000 | 3 Bed House6, William Street, Merthyr Tydfil, CF47 0RG6, William Street, Merthyr Tydfil, CF47 0RG
- Sold Aug 2025£110,000 | 3 Bed House66, Twynyrodyn Road, Merthyr Tydfil, CF47 0PS66, Twynyrodyn Road, Merthyr Tydfil, CF47 0PS
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 £146,511, ranging from £115,463 to £267,622.
- 41 St. Tydfils Avenue
3 Bed House | 5 m | Est. Value: £146,161
- 39 St. Tydfils Avenue
3 Bed House | 5 m | Est. Value: £148,174
- 42 St. Tydfils Avenue
2 Bed House | 10 m | Est. Value: £115,463
- 38 St. Tydfils Avenue
3 Bed House | 10 m | Est. Value: £131,871
- 43 St. Tydfils Avenue
3 Bed House | 15 m | Est. Value: £137,835
Location Comparison
Of the 57 addresses on St. Tydfils Avenue, Merthyr Tydfil, CF47, 40, St. Tydfils Avenue, Merthyr Tydfil comes out as the 28th largest and the 55th most expensive in our analysis of the public data.
It is also £25k less expensive than the average property across the CF47 district.
More reading links
Schools Nearby
Public Transport Nearby
- Merthyr Tydfil|600 m away
- Pentre-Bach|2.3 km away
- Troed-y-rhiw|3.9 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.





