Our Data Sources
40, Glanlay Street, Mountain Ash has no records in the Land Registry and a single entry in the EPC database dated March 2026.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 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 40, Glanlay Street, Mountain Ash, we estimate a market value of £124,329 and a rental value of £821 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £110,120 and £727 per month respectively.
Plot Size
HM Land Registry records the plot of land for 40, Glanlay Street, Mountain Ash as measuring 103 m2.
That makes it the 25th largest plot in the postcode, where 44 of the 49 other houses have recorded plot data.
Energy Efficiency
40, Glanlay Street, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 20 Mar 2026.
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 2021 246 properties similar to 40, Glanlay Street, Mountain Ash have sold within a radius of 1.0 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 27th March 2026, was 32, Rheola Street, Mountain Ash, CF45 3TB, a freehold house which sold for £150,000.
Read more about house prices in CF45.
- Sold Mar 2026£150,000 | 3 Bed House32, Rheola Street, Mountain Ash, CF45 3TB32, Rheola Street, Mountain Ash, CF45 3TB
- Sold Mar 2026£127,500 | 3 Bed House3, Glanlay Street, Mountain Ash, CF45 3TL3, Glanlay Street, Mountain Ash, CF45 3TL
- Sold Feb 2026£95,000 | 3 Bed House11, Glanlay Street, Mountain Ash, CF45 3TL11, Glanlay Street, Mountain Ash, CF45 3TL
- Sold Nov 2025£155,000 | 3 Bed House60, Morris Avenue, Mountain Ash, CF45 3TW60, Morris Avenue, Mountain Ash, CF45 3TW
- Sold Oct 2025£115,000 | 3 Bed House30, Glanlay Street, Mountain Ash, CF45 3TL30, Glanlay Street, Mountain Ash, CF45 3TL
Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Explore Nearby Properties
The surrounding properties have an average estimated value of £120,328, ranging from £108,564 to £131,997.
- 42 Glanlay Street
3 Bed House | 5 m | Est. Value: £113,231
- 38 Glanlay Street
3 Bed House | 5 m | Est. Value: £119,127
- 44 Glanlay Street
3 Bed House | 11 m | Est. Value: £128,707
- 34 Glanlay Street
3 Bed House | 15 m | Est. Value: £120,549
- 46 Glanlay Street
3 Bed House | 16 m | Est. Value: £130,829
Location Comparison
Of the 87 addresses on Glanlay Street, Mountain Ash, CF45, 40, Glanlay Street, Mountain Ash comes out as the 28th largest and the 25th most expensive in our analysis of the public data.
It is also £42k less expensive than the average property across the CF45 district.
More reading links
Schools Nearby
Public Transport Nearby
- Penrhiwceiber|300 m away
- Mountain Ash|1.9 km away
- Merthyr Vale|2.7 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.
