21, Gladstone Street, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 04 Nov 2020.

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 the Land Registry and our network of Estate Agents, there have been 32 sales of properties similar to 21, Gladstone Street, Mountain Ash within a radius of 650 metres since 2010.

The most recent example is 28, Park Street, Mountain Ash, CF45 3YL, a freehold house which sold for £75,000 on the 20th November 2025.

Read more about house prices in CF45.

• Sold Nov 2025£75,000 | 3 Bed House28, Park Street, Mountain Ash, CF45 3YL28, Park Street, Mountain Ash, CF45 3YL
• Sold Aug 2025£75,000 | 3 Bed House13, Ty'R Felin Street, Mountain Ash, CF45 3YP13, Ty'R Felin Street, Mountain Ash, CF45 3YP
• Sold Jun 2025£130,000 | 3 Bed House88, Park Street, Mountain Ash, CF45 3YL88, Park Street, Mountain Ash, CF45 3YL
• Sold Feb 2025£130,000 | 3 Bed House43, Park Street, Mountain Ash, CF45 3YW43, Park Street, Mountain Ash, CF45 3YW
• Sold Nov 2024£85,000 | 3 Bed House30, Park Street, Mountain Ash, CF45 3YL30, Park Street, Mountain Ash, CF45 3YL
• Sold Jul 2023£58,000 | 3 Bed House35, Victoria Street, Mountain Ash, CF45 3AW35, Victoria Street, Mountain Ash, CF45 3AW
• Sold Mar 2023£96,000 | 3 Bed House12, Victoria Street, Mountain Ash, CF45 3AW12, Victoria Street, Mountain Ash, CF45 3AW
• Sold Mar 2022£42,000 | 3 Bed House81, Ty'R Felin Street, Mountain Ash, CF45 3YP81, Ty'R Felin Street, Mountain Ash, CF45 3YP
• Sold Aug 2021£42,000 | 3 Bed House85, Ty'R Felin Street, Mountain Ash, CF45 3YP85, Ty'R Felin Street, Mountain Ash, CF45 3YP
• Sold Aug 2021£42,000 | 3 Bed House79, Ty'R Felin Street, Mountain Ash, CF45 3YP79, Ty'R Felin Street, Mountain Ash, CF45 3YP
• Sold Aug 2021£64,995 | 3 Bed House7, Gladstone Street, Mountain Ash, CF45 3BT7, Gladstone Street, Mountain Ash, CF45 3BT
• Sold Dec 2020£36,000 | 3 Bed House87, Ty'R Felin Street, Mountain Ash, CF45 3YP87, Ty'R Felin Street, Mountain Ash, CF45 3YP
• Sold Apr 2020£60,000 | 3 Bed House11, Victoria Street, Mountain Ash, CF45 3AW11, Victoria Street, Mountain Ash, CF45 3AW
• Sold Jul 2019£55,500 | 3 Bed House15, Victoria Street, Mountain Ash, CF45 3AW15, Victoria Street, Mountain Ash, CF45 3AW
• Sold Apr 2019£52,500 | 3 Bed House42, Victoria Street, Mountain Ash, CF45 3AW42, Victoria Street, Mountain Ash, CF45 3AW
• Sold Jan 2019£30,000 | 3 Bed House40, Park Street, Mountain Ash, CF45 3YL40, Park Street, Mountain Ash, CF45 3YL
• Sold Jan 2018£24,500 | 3 Bed House19, Ty'R Felin Street, Mountain Ash, CF45 3YP19, Ty'R Felin Street, Mountain Ash, CF45 3YP
• Sold Oct 2017£44,500 | 3 Bed House25, Ty'R Felin Street, Mountain Ash, CF45 3YP25, Ty'R Felin Street, Mountain Ash, CF45 3YP
• Sold Jun 2015£30,000 | 3 Bed House31, Ty'R Felin Street, Mountain Ash, CF45 3YP31, Ty'R Felin Street, Mountain Ash, CF45 3YP
• Sold Oct 2010£32,000 | 3 Bed House3, Gladstone Street, Mountain Ash, CF45 3BT3, Gladstone Street, Mountain Ash, CF45 3BT

Gladstone Street, Mountain Ash, CF45 has a total of 34 addresses. According to our analysis of all the public data, 21, Gladstone Street, Mountain Ash is the 25th largest and the 24th most expensive property on the street.

When compared to the postcode district it is £90k less expensive than the average property in CF45.

• Mountain Ash

  |

  900 m away
• Penrhiwceiber

  |

  1.0 km away
• Fernhill

  |

  2.2 km away

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