37, Duffryn Street, Mountain Ash occupies a 113 m² plot as recorded by HM Land Registry.

Of the 35 other houses in this postcode, 31 have recorded plot sizes, and this one ranks as the 7th largest.

37, Duffryn Street, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 15 Aug 2016.

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

37, Duffryn Street, Mountain Ash last changed hands on 27th January 2017, selling for £52,000. The transaction was logged as a freehold house by HM Land Registry.

That is its only recorded sale since 1995.

The market for similar properties has risen by 105.0% since January 2017.

• Sold Jan 2017£52,000

Land Registry records and our Estate Agent network show 193 sales of comparable properties within 510 metres of 37, Duffryn Street, Mountain Ash since 2019.

Most recently, 26, Woodland Terrace, Mountain Ash, CF45 3RF, a freehold house, sold at £130,000 on the 1st May 2026.

Read more about house prices in CF45.

• Sold May 2026£130,000 | 3 Bed House26, Woodland Terrace, Mountain Ash, CF45 3RF26, Woodland Terrace, Mountain Ash, CF45 3RF
• Sold Apr 2026£95,000 | 3 Bed House16, Lyle Street, Mountain Ash, CF45 3RG16, Lyle Street, Mountain Ash, CF45 3RG
• Sold Dec 2025£112,500 | 3 Bed House24, Pryce Street, Mountain Ash, CF45 3NT24, Pryce Street, Mountain Ash, CF45 3NT
• Sold Nov 2025£115,000 | 3 Bed House81, Duffryn Street, Mountain Ash, CF45 3HR81, Duffryn Street, Mountain Ash, CF45 3HR
• Sold Sep 2025£112,000 | 3 Bed House31, Napier Street, Mountain Ash, CF45 3HW31, Napier Street, Mountain Ash, CF45 3HW
• Sold Jul 2025£49,000 | 3 Bed House49, Commercial Street, Mountain Ash, CF45 3PS49, Commercial Street, Mountain Ash, CF45 3PS
• Sold Jun 2025£85,000 | 3 Bed House10, Commercial Street, Mountain Ash, CF45 3PS10, Commercial Street, Mountain Ash, CF45 3PS
• Sold Jan 2025£81,500 | 3 Bed House2, Cliff Street, Mountain Ash, CF45 3LE2, Cliff Street, Mountain Ash, CF45 3LE
• Sold Nov 2024£95,000 | 3 Bed House22, Commercial Street, Mountain Ash, CF45 3PS22, Commercial Street, Mountain Ash, CF45 3PS
• Sold Oct 2024£55,000 | 3 Bed House39, Dover Street, Mountain Ash, CF45 3HU39, Dover Street, Mountain Ash, CF45 3HU
• Sold Mar 2024£110,000 | 3 Bed House13, Lyle Street, Mountain Ash, CF45 3RG13, Lyle Street, Mountain Ash, CF45 3RG
• Sold Apr 2023£92,000 | 3 Bed House6, Commercial Street, Mountain Ash, CF45 3PS6, Commercial Street, Mountain Ash, CF45 3PS
• Sold Jul 2022£87,500 | 3 Bed House35, Napier Street, Mountain Ash, CF45 3HW35, Napier Street, Mountain Ash, CF45 3HW
• Sold Apr 2022£65,000 | 3 Bed House13, Duffryn Street, Mountain Ash, CF45 3NU13, Duffryn Street, Mountain Ash, CF45 3NU
• Sold Mar 2022£110,000 | 3 Bed House9, Duffryn Street, Mountain Ash, CF45 3NU9, Duffryn Street, Mountain Ash, CF45 3NU
• Sold Feb 2021£84,000 | 3 Bed House35, Duffryn Street, Mountain Ash, CF45 3NU35, Duffryn Street, Mountain Ash, CF45 3NU
• Sold Feb 2021£68,000 | 3 Bed House58, Duffryn Street, Mountain Ash, CF45 3HR58, Duffryn Street, Mountain Ash, CF45 3HR
• Sold Feb 2021£83,000 | 3 Bed House16, Duffryn Street, Mountain Ash, CF45 3NU16, Duffryn Street, Mountain Ash, CF45 3NU
• Sold Jan 2021£42,000 | 3 Bed House12, Oxford Street, Mountain Ash, CF45 3PL12, Oxford Street, Mountain Ash, CF45 3PL
• Sold Apr 2019£70,000 | 3 Bed House24, Duffryn Street, Mountain Ash, CF45 3NU24, Duffryn Street, Mountain Ash, CF45 3NU

Our analysis of the public data ranks 37, Duffryn Street, Mountain Ash as the 12th largest and the 29th most expensive of the 93 addresses on Duffryn Street, Mountain Ash, CF45.

Against the CF45 postcode district average, it is £46k less expensive than the typical property.

• Mountain Ash

  |

  400 m away
• Fernhill

  |

  1.1 km away
• Penrhiwceiber

  |

  2.1 km away

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