4, Commercial Street, Mountain Ash occupies a 91 m² plot as recorded by HM Land Registry.

Of the 14 other houses in this postcode, 12 have recorded plot sizes, and this one ranks as the 9th largest.

4, Commercial Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 25 Apr 2017.

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

4, Commercial Street, Mountain Ash last changed hands on 28th July 2023, selling for £85,000. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold 5 times since 1995.

The market for similar properties has risen by 32.7% since July 2023.

• Sold Jul 2023£85,000
• Sold Feb 2018£52,000
• Sold May 2017£25,000

Land Registry records and our Estate Agent network show 35 sales of comparable properties within 640 metres of 4, Commercial Street, Mountain Ash since 2016.

Most recently, 32, Napier Street, Mountain Ash, CF45 3HW, a freehold house, sold at £60,000 on the 3rd November 2025.

Read more about house prices in CF45.

• Sold Nov 2025£60,000 | 3 Bed House32, Napier Street, Mountain Ash, CF45 3HW32, Napier Street, Mountain Ash, CF45 3HW
• Sold Dec 2024£115,000 | 3 Bed House19, Pryce Street, Mountain Ash, CF45 3NT19, Pryce Street, Mountain Ash, CF45 3NT
• Sold Jul 2024£63,000 | 3 Bed House28, Napier Street, Mountain Ash, CF45 3HW28, Napier Street, Mountain Ash, CF45 3HW
• 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 May 2023£68,000 | 3 Bed House44, Commercial Street, Mountain Ash, CF45 3PW44, Commercial Street, Mountain Ash, CF45 3PW
• Sold Aug 2022£72,500 | 3 Bed House30, Duffryn Street, Mountain Ash, CF45 3NU30, Duffryn Street, Mountain Ash, CF45 3NU
• Sold Apr 2022£76,250 | 3 Bed House46, Commercial Street, Mountain Ash, CF45 3PW46, Commercial Street, Mountain Ash, CF45 3PW
• 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 Apr 2021£70,000 | 3 Bed House96, High Street, Mountain Ash, CF45 3LN96, High Street, Mountain Ash, CF45 3LN
• Sold Mar 2021£72,500 | 3 Bed House36, Napier Street, Mountain Ash, CF45 3HW36, Napier Street, Mountain Ash, CF45 3HW
• Sold Nov 2020£54,000 | 3 Bed House15, Stream Street, Mountain Ash, CF45 3LL15, Stream Street, Mountain Ash, CF45 3LL
• Sold Nov 2019£62,000 | 3 Bed House32, Duffryn Street, Mountain Ash, CF45 3NU32, Duffryn Street, Mountain Ash, CF45 3NU
• Sold Aug 2016£59,000 | 3 Bed House8, Napier Street, Mountain Ash, CF45 3HW8, Napier Street, Mountain Ash, CF45 3HW
• Sold Aug 2016£47,500 | 3 Bed House12, Duffryn Street, Mountain Ash, CF45 3NU12, Duffryn Street, Mountain Ash, CF45 3NU

Our analysis of the public data ranks 4, Commercial Street, Mountain Ash as the 26th largest and the 22nd most expensive of the 31 addresses on Commercial Street, Mountain Ash, CF45.

Against the CF45 postcode district average, it is £75k less expensive than the typical property.

• Mountain Ash

  |

  500 m away
• Fernhill

  |

  1.0 km away
• Penrhiwceiber

  |

  2.2 km away

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