HM Land Registry records the plot of land for 2, John Street, Mountain Ash as measuring 152 m².

That makes it the 2nd largest plot in the postcode, where all 3 other houses have recorded plot data.

2, John Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 27 Apr 2016.

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 2, John Street, Mountain Ash completed on 27th January 2023 at £91,500 and was recorded by HM Land Registry as a freehold house.

Since 1995 the property has sold 5 times.

Values of comparable properties have risen by 7.2% over the period since January 2023.

• Sold Jan 2023£91,500
• Sold May 2004£44,000
• Sold Dec 2002£34,950

Since 2016 166 properties similar to 2, John Street, Mountain Ash have sold within a radius of 730 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 28th November 2025, was 9, Strand Street, Mountain Ash, CF45 4HG, a freehold house which sold for £80,000.

Read more about house prices in CF45.

• Sold Nov 2025£80,000 | 3 Bed House9, Strand Street, Mountain Ash, CF45 4HG9, Strand Street, Mountain Ash, CF45 4HG
• Sold Aug 2025£80,000 | 3 Bed House44, Strand Street, Mountain Ash, CF45 4HG44, Strand Street, Mountain Ash, CF45 4HG
• Sold Jul 2025£95,000 | 3 Bed House38, Albert Street, Mountain Ash, CF45 3BA38, Albert Street, Mountain Ash, CF45 3BA
• Sold Jul 2025£100,000 | 3 Bed House4, Strand Street, Mountain Ash, CF45 4HG4, Strand Street, Mountain Ash, CF45 4HG
• 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£73,500 | 3 Bed House10, Strand Street, Mountain Ash, CF45 4HG10, Strand Street, Mountain Ash, CF45 4HG
• 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 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 Jun 2023£45,000 | 3 Bed House68, Cardiff Road, Mountain Ash, CF45 4HD68, Cardiff Road, Mountain Ash, CF45 4HD
• Sold Jun 2022£78,500 | 3 Bed House8, Strand Street, Mountain Ash, CF45 4HG8, 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 Aug 2021£64,000 | 3 Bed House22, Strand Street, Mountain Ash, CF45 4HG22, Strand Street, Mountain Ash, CF45 4HG
• Sold Jul 2021£70,000 | 3 Bed House5, Strand Street, Mountain Ash, CF45 4HG5, Strand Street, Mountain Ash, CF45 4HG
• Sold Aug 2020£60,000 | 3 Bed House21, Strand Street, Mountain Ash, CF45 4HG21, 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 Apr 2016£56,000 | 3 Bed House2, Mary Street, Mountain Ash, CF45 4HH2, 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

Of the 7 addresses on John Street, Mountain Ash, CF45, 2, John Street, Mountain Ash comes out as the 6th largest and the 6th most expensive in our analysis of the public data.

It is also £53k less expensive than the average property across the CF45 district.

• Mountain Ash

  |

  700 m away
• Penrhiwceiber

  |

  1.0 km away
• Fernhill

  |

  2.2 km away

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