HM Land Registry records the plot of land for 4, Graig Street, Mountain Ash as measuring 65 m².

That makes it the 9th largest plot in the postcode, where all 11 other houses have recorded plot data.

4, Graig Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 10 May 2024.

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 4, Graig Street, Mountain Ash completed on 28th August 2015 at £38,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

Values of comparable properties have risen by 115.9% over the period since August 2015.

• Sold Aug 2015£38,000

Since 2019 50 properties similar to 4, Graig Street, Mountain Ash have sold within a radius of 560 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 2nd February 2026, was 32, High Street, Mountain Ash, CF45 3PE, a freehold house which sold for £53,000.

Read more about house prices in CF45.

• Sold Feb 2026£53,000 | 3 Bed House32, High Street, Mountain Ash, CF45 3PE32, High Street, Mountain Ash, CF45 3PE
• Sold Nov 2025£60,000 | 3 Bed House32, Napier Street, Mountain Ash, CF45 3HW32, Napier Street, Mountain Ash, CF45 3HW
• Sold Feb 2025£84,000 | 3 Bed House110, High Street, Mountain Ash, CF45 3LN110, High Street, Mountain Ash, CF45 3LN
• Sold Oct 2024£67,000 | 3 Bed House20, Chancery Lane, Mountain Ash, CF45 3NW20, Chancery Lane, Mountain Ash, CF45 3NW
• Sold Aug 2024£30,000 | 3 Bed House40, High Street, Mountain Ash, CF45 3PE40, High Street, Mountain Ash, CF45 3PE
• Sold Jul 2024£72,000 | 3 Bed House20, Stream Street, Mountain Ash, CF45 3LL20, Stream Street, Mountain Ash, CF45 3LL
• Sold Jul 2024£63,000 | 3 Bed House28, Napier Street, Mountain Ash, CF45 3HW28, Napier Street, Mountain Ash, CF45 3HW
• Sold Jul 2024£76,000 | 3 Bed House72, High Street, Mountain Ash, CF45 3LD72, High Street, Mountain Ash, CF45 3LD
• Sold Jun 2024£75,000 | 3 Bed House16, Stream Street, Mountain Ash, CF45 3LL16, Stream Street, Mountain Ash, CF45 3LL
• Sold Jun 2024£39,950 | 3 Bed House48, Commercial Street, Mountain Ash, CF45 3PW48, Commercial Street, Mountain Ash, CF45 3PW
• Sold Feb 2024£89,000 | 3 Bed House24, Napier Street, Mountain Ash, CF45 3HW24, Napier Street, Mountain Ash, CF45 3HW
• Sold Oct 2023£78,500 | 3 Bed House30, Napier Street, Mountain Ash, CF45 3HW30, Napier Street, Mountain Ash, CF45 3HW
• Sold Sep 2023£90,000 | 3 Bed House9, Pryce Street, Mountain Ash, CF45 3NS9, Pryce Street, Mountain Ash, CF45 3NS
• Sold Jul 2023£85,000 | 3 Bed House4, Commercial Street, Mountain Ash, CF45 3PS4, Commercial Street, Mountain Ash, CF45 3PS
• Sold May 2023£68,000 | 3 Bed House44, Commercial Street, Mountain Ash, CF45 3PW44, Commercial Street, Mountain Ash, CF45 3PW
• Sold May 2022£68,000 | 3 Bed House20, High Street, Mountain Ash, CF45 3PE20, High Street, Mountain Ash, CF45 3PE
• Sold Apr 2022£60,000 | 3 Bed House2, Commercial Street, Mountain Ash, CF45 3PS2, Commercial Street, Mountain Ash, CF45 3PS
• Sold Apr 2022£95,955 | 3 Bed House5, Graig Street, Mountain Ash, CF45 3PD5, Graig Street, Mountain Ash, CF45 3PD
• Sold Jun 2021£78,000 | 3 Bed House26, Duffryn Street, Mountain Ash, CF45 3NU26, Duffryn Street, Mountain Ash, CF45 3NU
• Sold Jul 2019£55,500 | 3 Bed House18, Commercial Street, Mountain Ash, CF45 3PS18, Commercial Street, Mountain Ash, CF45 3PS

Of the 11 addresses on Graig Street, Mountain Ash, CF45, 4, Graig Street, Mountain Ash comes out as the 8th largest and the 7th most expensive in our analysis of the public data.

It is also £76k less expensive than the average property across the CF45 district.

• Mountain Ash

  |

  500 m away
• Fernhill

  |

  1.0 km away
• Penrhiwceiber

  |

  2.2 km away

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