According to data from HM Land Registry, 4, Lyndhurst Street, Mountain Ash sits on a plot of 127 m².

We have plot size data on 18 out of 22 other houses in the postcode and 4, Lyndhurst Street, Mountain Ash sits on the 18th largest plot.

4, Lyndhurst Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 30 Oct 2012.

The property is not connected to mains gas and has mostly double glazing. It is heated using a boiler and radiators (mains gas).

According to the Land Registry and our network of Estate Agents, there have been 183 sales of properties similar to 4, Lyndhurst Street, Mountain Ash within a radius of 800 metres since 2019.

The most recent example is 10, The Triangle, Mountain Ash, CF45 4BA, a freehold house which sold for £160,000 on the 20th February 2026.

Read more about house prices in CF45.

• Sold Feb 2026£160,000 | 3 Bed House10, The Triangle, Mountain Ash, CF45 4BA10, The Triangle, Mountain Ash, CF45 4BA
• Sold Oct 2025£130,000 | 3 Bed House26, The Triangle, Mountain Ash, CF45 4BA26, The Triangle, Mountain Ash, CF45 4BA
• Sold Aug 2025£126,000 | 3 Bed House19, Beckett Street, Mountain Ash, CF45 4AW19, Beckett Street, Mountain Ash, CF45 4AW
• Sold Jul 2025£175,000 | 3 Bed House27, The Triangle, Mountain Ash, CF45 4BA27, The Triangle, Mountain Ash, CF45 4BA
• Sold Oct 2024£148,500 | 3 Bed House33, Phillip Street, Mountain Ash, CF45 4BE33, Phillip Street, Mountain Ash, CF45 4BE
• Sold Sep 2024£85,000 | 3 Bed House42, Allen Street, Mountain Ash, CF45 4BB42, Allen Street, Mountain Ash, CF45 4BB
• Sold May 2024£143,000 | 3 Bed House8, Copley Street, Mountain Ash, CF45 4AS8, Copley Street, Mountain Ash, CF45 4AS
• Sold Oct 2023£185,000 | 3 Bed House3, Richmond Road, Mountain Ash, CF45 4AN3, Richmond Road, Mountain Ash, CF45 4AN
• Sold Mar 2023£132,500 | 3 Bed House11, Lyndhurst Street, Mountain Ash, CF45 4AP11, Lyndhurst Street, Mountain Ash, CF45 4AP
• Sold Jan 2023£130,000 | 3 Bed House14, Lyndhurst Street, Mountain Ash, CF45 4AP14, Lyndhurst Street, Mountain Ash, CF45 4AP
• Sold Oct 2022£39,995 | 3 Bed House2, Lyndhurst Street, Mountain Ash, CF45 4AP2, Lyndhurst Street, Mountain Ash, CF45 4AP
• Sold Jun 2022£129,995 | 3 Bed House4, Copley Street, Mountain Ash, CF45 4AS4, Copley Street, Mountain Ash, CF45 4AS
• Sold Jun 2022£149,995 | 3 Bed House29, The Triangle, Mountain Ash, CF45 4BA29, The Triangle, Mountain Ash, CF45 4BA
• Sold Jan 2022£85,000 | 3 Bed House21, The Triangle, Mountain Ash, CF45 4BA21, The Triangle, Mountain Ash, CF45 4BA
• Sold Oct 2021£150,000 | 3 Bed House2, Richmond Road, Mountain Ash, CF45 4AN2, Richmond Road, Mountain Ash, CF45 4AN
• Sold Aug 2021£125,000 | 3 Bed House13, Richmond Road, Mountain Ash, CF45 4AN13, Richmond Road, Mountain Ash, CF45 4AN
• Sold May 2020£102,000 | 3 Bed House17, Beckett Street, Mountain Ash, CF45 4AW17, Beckett Street, Mountain Ash, CF45 4AW
• Sold Apr 2020£77,000 | 3 Bed House19, Richmond Road, Mountain Ash, CF45 4AN19, Richmond Road, Mountain Ash, CF45 4AN
• Sold Nov 2019£108,000 | 3 Bed House3, Copley Street, Mountain Ash, CF45 4AS3, Copley Street, Mountain Ash, CF45 4AS
• Sold Mar 2019£114,000 | 3 Bed House11, Beckett Street, Mountain Ash, CF45 4AW11, Beckett Street, Mountain Ash, CF45 4AW

Lyndhurst Street, Mountain Ash, CF45 has a total of 22 addresses. According to our analysis of all the public data, 4, Lyndhurst Street, Mountain Ash is the 19th largest and the 19th most expensive property on the street.

When compared to the postcode district it is £9k less expensive than the average property in CF45.

• Mountain Ash

  |

  700 m away
• Fernhill

  |

  1.1 km away
• Penrhiwceiber

  |

  2.4 km away

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