According to data from HM Land Registry, 42, Glanlay Street, Mountain Ash sits on a plot of 99 m².

We have plot size data on 44 out of 49 other houses in the postcode and 42, Glanlay Street, Mountain Ash sits on the 36th largest plot.

42, Glanlay Street, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 17 Nov 2015.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

According to HM Land Registry, 42, Glanlay Street, Mountain Ash was last sold on 23rd November 2007 for £57,635 and was recorded as a freehold house.

The property has only had this single sale since 1995.

Since November 2007, the market for similar properties has risen by 101.3%.

• Sold Nov 2007£57,635

According to the Land Registry and our network of Estate Agents, there have been 187 sales of properties similar to 42, Glanlay Street, Mountain Ash within a radius of 1.0 kilometres since 2019.

The most recent example is 3, Glanlay Street, Mountain Ash, CF45 3TL, a freehold house which sold for £127,500 on the 20th March 2026.

Read more about house prices in CF45.

• Sold Mar 2026£127,500 | 3 Bed House3, Glanlay Street, Mountain Ash, CF45 3TL3, 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
• Sold May 2025£98,000 | 3 Bed House1, Morris Avenue, Mountain Ash, CF45 3TW1, Morris Avenue, Mountain Ash, CF45 3TW
• Sold Apr 2025£48,000 | 3 Bed House75, Morris Avenue, Mountain Ash, CF45 3TW75, Morris Avenue, Mountain Ash, CF45 3TW
• Sold Mar 2025£90,000 | 3 Bed House59, Morris Avenue, Mountain Ash, CF45 3TW59, Morris Avenue, Mountain Ash, CF45 3TW
• Sold Mar 2025£82,500 | 3 Bed House3, Morris Avenue, Mountain Ash, CF45 3TW3, Morris Avenue, Mountain Ash, CF45 3TW
• Sold Feb 2025£150,000 | 3 Bed House39, Glanlay Street, Mountain Ash, CF45 3TL39, Glanlay Street, Mountain Ash, CF45 3TL
• Sold Dec 2024£75,000 | 3 Bed House53, Morris Avenue, Mountain Ash, CF45 3TW53, Morris Avenue, Mountain Ash, CF45 3TW
• Sold Sep 2024£105,000 | 3 Bed House35, Morris Avenue, Mountain Ash, CF45 3TW35, Morris Avenue, Mountain Ash, CF45 3TW
• Sold Sep 2024£99,000 | 3 Bed House65, Morris Avenue, Mountain Ash, CF45 3TW65, Morris Avenue, Mountain Ash, CF45 3TW
• Sold Sep 2024£70,000 | 3 Bed House84, Glanlay Street, Mountain Ash, CF45 3TN84, Glanlay Street, Mountain Ash, CF45 3TN
• Sold Mar 2024£70,000 | 3 Bed House49, Morris Avenue, Mountain Ash, CF45 3TW49, Morris Avenue, Mountain Ash, CF45 3TW
• Sold Mar 2024£57,000 | 3 Bed House12, Rheola Street, Mountain Ash, CF45 3TA12, Rheola Street, Mountain Ash, CF45 3TA
• Sold Oct 2022£55,000 | 3 Bed House13A, Rheola Street, Mountain Ash, CF45 3TA13A, Rheola Street, Mountain Ash, CF45 3TA
• Sold Aug 2022£102,500 | 3 Bed House14A, Rheola Street, Mountain Ash, CF45 3TA14A, Rheola Street, Mountain Ash, CF45 3TA
• Sold Jul 2022£60,000 | 3 Bed House54, Morris Avenue, Mountain Ash, CF45 3TW54, Morris Avenue, Mountain Ash, CF45 3TW
• Sold May 2022£90,000 | 3 Bed House38, Glanlay Street, Mountain Ash, CF45 3TL38, Glanlay Street, Mountain Ash, CF45 3TL
• Sold Oct 2021£89,950 | 3 Bed House19, Rheola Street, Mountain Ash, CF45 3TA19, Rheola Street, Mountain Ash, CF45 3TA
• Sold Jan 2019£53,995 | 3 Bed House12, Glanlay Street, Mountain Ash, CF45 3TL12, Glanlay Street, Mountain Ash, CF45 3TL

Glanlay Street, Mountain Ash, CF45 has a total of 87 addresses. According to our analysis of all the public data, 42, Glanlay Street, Mountain Ash is the 52nd largest and the 37th most expensive property on the street.

When compared to the postcode district it is £48k less expensive than the average property in CF45.

• Penrhiwceiber

  |

  300 m away
• Mountain Ash

  |

  1.9 km away
• Merthyr Vale

  |

  2.7 km away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.