HM Land Registry records the plot of land for 33, Mary Street, Mountain Ash as measuring 144 m².

That makes it the 25th largest plot in the postcode, where 40 of the 47 other houses have recorded plot data.

33, Mary Street, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 31 May 2023.

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

The most recent sale of 33, Mary Street, Mountain Ash completed on 25th August 2023 at £100,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 the property has sold twice.

Values of comparable properties have risen by 9.9% over the period since August 2023.

Since 2013 167 properties similar to 33, Mary Street, Mountain Ash have sold within a radius of 750 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 30th July 2025, was 38, Albert Street, Mountain Ash, CF45 3BA, a freehold house which sold for £95,000.

Read more about house prices in CF45.

• Sold Jul 2025£95,000 | 3 Bed House38, Albert Street, Mountain Ash, CF45 3BA38, Albert Street, Mountain Ash, CF45 3BA
• Sold Jul 2025£95,000 | 3 Bed House39, Strand Street, Mountain Ash, CF45 4HG39, Strand Street, Mountain Ash, CF45 4HG
• Sold Jun 2025£66,000 | 3 Bed House40B, Glyngwyn Street, Mountain Ash, CF45 3AF40B, Glyngwyn Street, Mountain Ash, CF45 3AF
• Sold May 2025£119,000 | 3 Bed House74, Victoria Street, Mountain Ash, CF45 3AP74, Victoria Street, Mountain Ash, CF45 3AP
• Sold Apr 2025£72,000 | 3 Bed House16, Albert Street, Mountain Ash, CF45 3BA16, Albert Street, Mountain Ash, CF45 3BA
• Sold Mar 2025£110,000 | 3 Bed House36, Glyngwyn Street, Mountain Ash, CF45 3AF36, Glyngwyn Street, Mountain Ash, CF45 3AF
• Sold Sep 2024£110,000 | 3 Bed House17, Mary Street, Mountain Ash, CF45 4HH17, Mary Street, Mountain Ash, CF45 4HH
• Sold Sep 2024£81,000 | 3 Bed House34, Glyngwyn Street, Mountain Ash, CF45 3AF34, Glyngwyn Street, Mountain Ash, CF45 3AF
• Sold May 2024£62,000 | 3 Bed House89, Victoria Street, Mountain Ash, CF45 3AP89, Victoria Street, Mountain Ash, CF45 3AP
• Sold Dec 2023£90,000 | 3 Bed House19, Mary Street, Mountain Ash, CF45 4HH19, Mary Street, Mountain Ash, CF45 4HH
• Sold Sep 2023£85,000 | 3 Bed House58, Victoria Street, Mountain Ash, CF45 3AP58, Victoria Street, Mountain Ash, CF45 3AP
• Sold Jun 2023£45,000 | 3 Bed House68, Cardiff Road, Mountain Ash, CF45 4HD68, Cardiff Road, Mountain Ash, CF45 4HD
• Sold Jan 2023£91,500 | 3 Bed House2, John Street, Mountain Ash, CF45 4HL2, John Street, Mountain Ash, CF45 4HL
• Sold Oct 2021£85,000 | 3 Bed House42, Mary Street, Mountain Ash, CF45 4HH42, Mary Street, Mountain Ash, CF45 4HH
• Sold Nov 2020£74,000 | 3 Bed House72, Cardiff Road, Mountain Ash, CF45 4HD72, Cardiff Road, Mountain Ash, CF45 4HD
• Sold Feb 2020£75,000 | 3 Bed House35, Mary Street, Mountain Ash, CF45 4HH35, Mary Street, Mountain Ash, CF45 4HH
• Sold Jan 2019£70,000 | 3 Bed House13, Mary Street, Mountain Ash, CF45 4HH13, Mary Street, Mountain Ash, CF45 4HH
• Sold Jun 2018£45,000 | 3 Bed House20, Mary Street, Mountain Ash, CF45 4HH20, Mary Street, Mountain Ash, CF45 4HH
• Sold Mar 2016£75,000 | 3 Bed House7, Mary Street, Mountain Ash, CF45 4HH7, Mary Street, Mountain Ash, CF45 4HH
• Sold Jun 2013£58,000 | 3 Bed House23, Mary Street, Mountain Ash, CF45 4HH23, Mary Street, Mountain Ash, CF45 4HH

Of the 47 addresses on Mary Street, Mountain Ash, CF45, 33, Mary Street, Mountain Ash comes out as the 42nd largest and the 42nd most expensive in our analysis of the public data.

It is also £48k less expensive than the average property across the CF45 district.

• Mountain Ash

  |

  600 m away
• Penrhiwceiber

  |

  1.1 km away
• Fernhill

  |

  2.1 km away

The flood risk here is rated Very Low, based on Environment Agency data.