HM Land Registry records the plot of land for 7, Mary Street, Mountain Ash as measuring 212 m².

That makes it the 5th largest plot in the postcode, where 40 of the 47 other houses have recorded plot data.

7, Mary Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 03 Sep 2012.

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 7, Mary Street, Mountain Ash completed on 3rd March 2016 at £75,000 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 72.1% over the period since March 2016.

• Sold Mar 2016£75,000
• Sold May 2008£78,950

Since 2013 219 properties similar to 7, Mary Street, Mountain Ash have sold within a radius of 720 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 28th November 2025, was 13, Hughes Street, Mountain Ash, CF45 3UG, a freehold house which sold for £122,000.

Read more about house prices in CF45.

• Sold Nov 2025£122,000 | 3 Bed House13, Hughes Street, Mountain Ash, CF45 3UG13, Hughes Street, Mountain Ash, CF45 3UG
• Sold Oct 2025£89,000 | 3 Bed House36, Mary Street, Mountain Ash, CF45 4HH36, Mary Street, Mountain Ash, CF45 4HH
• 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 Mar 2025£110,000 | 3 Bed House36, Glyngwyn Street, Mountain Ash, CF45 3AF36, Glyngwyn Street, Mountain Ash, CF45 3AF
• Sold Feb 2025£92,750 | 3 Bed House19, Harcourt Terrace, Mountain Ash, CF45 3SD19, Harcourt Terrace, Mountain Ash, CF45 3SD
• Sold Sep 2024£110,000 | 3 Bed House17, Mary Street, Mountain Ash, CF45 4HH17, Mary Street, Mountain Ash, CF45 4HH
• Sold Jul 2024£75,000 | 3 Bed House12, Hughes Street, Mountain Ash, CF45 3UG12, Hughes Street, Mountain Ash, CF45 3UG
• Sold Dec 2023£90,000 | 3 Bed House19, Mary Street, Mountain Ash, CF45 4HH19, Mary Street, Mountain Ash, CF45 4HH
• Sold Aug 2023£100,000 | 3 Bed House33, Mary Street, Mountain Ash, CF45 4HH33, Mary Street, Mountain Ash, CF45 4HH
• Sold Apr 2023£88,000 | 3 Bed House1, Strand Street, Mountain Ash, CF45 4HG1, Strand Street, Mountain Ash, CF45 4HG
• Sold Jan 2023£91,500 | 3 Bed House2, John Street, Mountain Ash, CF45 4HL2, John Street, Mountain Ash, CF45 4HL
• Sold Oct 2022£72,000 | 3 Bed House25, Strand Street, Mountain Ash, CF45 4HG25, Strand Street, Mountain Ash, CF45 4HG
• Sold Oct 2021£85,000 | 3 Bed House42, Mary Street, Mountain Ash, CF45 4HH42, Mary Street, Mountain Ash, CF45 4HH
• Sold Jul 2021£70,000 | 3 Bed House5, Strand Street, Mountain Ash, CF45 4HG5, Strand Street, Mountain Ash, CF45 4HG
• Sold Feb 2020£75,000 | 3 Bed House35, Mary Street, Mountain Ash, CF45 4HH35, Mary Street, Mountain Ash, CF45 4HH
• Sold Dec 2019£70,000 | 3 Bed House3, Strand Street, Mountain Ash, CF45 4HG3, Strand Street, Mountain Ash, CF45 4HG
• 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 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, 7, Mary Street, Mountain Ash comes out as the 34th largest and the 35th most expensive in our analysis of the public data.

It is also £45k 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.