12, Gladstone Street, Mountain Ash occupies a 148 m² plot as recorded by HM Land Registry.

Of the 34 other houses in this postcode, 27 have recorded plot sizes, and this one ranks as the 9th largest.

12, Gladstone Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 15 Jun 2017.

The property is connected to mains gas and has mostly double glazing. It is heated using a boiler and radiators (mains gas).

12, Gladstone Street, Mountain Ash last changed hands on 9th February 2004, selling for £38,000. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold twice since 1995.

• Sold Feb 2004£38,000
• Sold Jun 1996£11,500

Land Registry records and our Estate Agent network show 54 sales of comparable properties within 640 metres of 12, Gladstone Street, Mountain Ash since 2017.

Most recently, 148, Penrhiwceiber Road, Mountain Ash, CF45 3SH, a freehold house, sold at £75,000 on the 3rd March 2026.

Read more about house prices in CF45.

• Sold Mar 2026£75,000 | 3 Bed House148, Penrhiwceiber Road, Mountain Ash, CF45 3SH148, Penrhiwceiber Road, Mountain Ash, CF45 3SH
• Sold Feb 2026£74,500 | 3 Bed House28, Gladstone Street, Mountain Ash, CF45 3BT28, Gladstone Street, Mountain Ash, CF45 3BT
• 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 Dec 2024£63,000 | 3 Bed House17, Gladstone Street, Mountain Ash, CF45 3BT17, Gladstone Street, Mountain Ash, CF45 3BT
• Sold Nov 2024£85,000 | 3 Bed House30, Park Street, Mountain Ash, CF45 3YL30, Park Street, Mountain Ash, CF45 3YL
• Sold May 2024£84,500 | 3 Bed House20, Park Street, Mountain Ash, CF45 3YL20, Park Street, Mountain Ash, CF45 3YL
• Sold Sep 2023£70,000 | 3 Bed House68, Park Street, Mountain Ash, CF45 3YL68, Park Street, Mountain Ash, CF45 3YL
• Sold Mar 2023£96,000 | 3 Bed House12, Victoria Street, Mountain Ash, CF45 3AW12, Victoria Street, Mountain Ash, CF45 3AW
• Sold Jun 2022£45,000 | 3 Bed House83, Ty'R Felin Street, Mountain Ash, CF45 3YP83, Ty'R Felin Street, Mountain Ash, CF45 3YP
• 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 Sep 2019£39,900 | 3 Bed House4, Gladstone Street, Mountain Ash, CF45 3BT4, Gladstone Street, Mountain Ash, CF45 3BT
• 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

Our analysis of the public data ranks 12, Gladstone Street, Mountain Ash as the 23rd largest and the 22nd most expensive of the 34 addresses on Gladstone Street, Mountain Ash, CF45.

Against the CF45 postcode district average, it is £88k less expensive than the typical property.

• Mountain Ash

  |

  900 m away
• Penrhiwceiber

  |

  1.0 km away
• Fernhill

  |

  2.2 km away

Environment Agency data suggests this area has a Very Low risk of flooding.