The Oak, Mountain Ash occupies a 201 m² plot as recorded by HM Land Registry.

Of the 26 other houses in this postcode, 22 have recorded plot sizes, and this one ranks as the 2nd largest.

The Oak, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 23 Apr 2021.

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

Land Registry records and our Estate Agent network show 91 sales of comparable properties within 600 metres of The Oak, Mountain Ash since 2017.

Most recently, 29, Coplestone Street, Mountain Ash, CF45 3LY, a freehold house, sold at £150,000 on the 21st November 2025.

Read more about house prices in CF45.

• Sold Nov 2025£150,000 | 3 Bed House29, Coplestone Street, Mountain Ash, CF45 3LY29, Coplestone Street, Mountain Ash, CF45 3LY
• Sold Jul 2025£145,000 | 3 Bed House42, Coplestone Street, Mountain Ash, CF45 3LY42, Coplestone Street, Mountain Ash, CF45 3LY
• Sold Jun 2025£132,500 | 3 Bed House28, Kingcraft Street, Mountain Ash, CF45 3LT28, Kingcraft Street, Mountain Ash, CF45 3LT
• Sold Jun 2025£139,950 | 3 Bed House98, Brynifor, Mountain Ash, CF45 3AB98, Brynifor, Mountain Ash, CF45 3AB
• Sold May 2025£116,500 | 3 Bed House17, Coplestone Street, Mountain Ash, CF45 3LY17, Coplestone Street, Mountain Ash, CF45 3LY
• Sold May 2025£67,000 | 3 Bed House20, Commercial Street, Mountain Ash, CF45 3PS20, Commercial Street, Mountain Ash, CF45 3PS
• Sold Feb 2025£122,000 | 3 Bed House21, Darran Road, Mountain Ash, CF45 3HT21, Darran Road, Mountain Ash, CF45 3HT
• Sold Feb 2025£100,000 | 3 Bed House10, Coplestone Street, Mountain Ash, CF45 3LY10, Coplestone Street, Mountain Ash, CF45 3LY
• Sold Feb 2025£73,000 | 3 Bed House4, Coplestone Street, Mountain Ash, CF45 3LY4, Coplestone Street, Mountain Ash, CF45 3LY
• Sold Nov 2024£120,000 | 3 Bed House3, Aberpennar Street, Mountain Ash, CF45 3LS3, Aberpennar Street, Mountain Ash, CF45 3LS
• Sold Aug 2024£105,000 | 3 Bed House43, Aberpennar Street, Mountain Ash, CF45 3LS43, Aberpennar Street, Mountain Ash, CF45 3LS
• Sold Apr 2024£110,000 | 3 Bed House47, Aberpennar Street, Mountain Ash, CF45 3LS47, Aberpennar Street, Mountain Ash, CF45 3LS
• Sold Mar 2024£114,000 | 3 Bed House46, Aberpennar Street, Mountain Ash, CF45 3LS46, Aberpennar Street, Mountain Ash, CF45 3LS
• Sold Feb 2024£112,500 | 3 Bed House12, Coplestone Street, Mountain Ash, CF45 3LY12, Coplestone Street, Mountain Ash, CF45 3LY
• Sold Nov 2022£120,000 | 3 Bed House8, Kingcraft Street, Mountain Ash, CF45 3LT8, Kingcraft Street, Mountain Ash, CF45 3LT
• Sold Oct 2022£130,000 | 3 Bed House16, Kingcraft Street, Mountain Ash, CF45 3LT16, Kingcraft Street, Mountain Ash, CF45 3LT
• Sold Jun 2021£129,000 | 3 Bed House36, Kingcraft Street, Mountain Ash, CF45 3LT36, Kingcraft Street, Mountain Ash, CF45 3LT
• Sold Mar 2020£87,500 | 3 Bed House2, Aberpennar Street, Mountain Ash, CF45 3LS2, Aberpennar Street, Mountain Ash, CF45 3LS
• Sold Feb 2020£80,500 | 3 Bed House28, Aberpennar Street, Mountain Ash, CF45 3LS28, Aberpennar Street, Mountain Ash, CF45 3LS
• Sold Aug 2017£48,000 | 3 Bed House28, Dover Street, Mountain Ash, CF45 3HU28, Dover Street, Mountain Ash, CF45 3HU

Our analysis of the public data ranks The Oak, Mountain Ash as the 2nd largest and the 2nd most expensive of the 26 addresses on Stream Street, Mountain Ash, CF45.

Against the CF45 postcode district average, it is £40k less expensive than the typical property.

• Mountain Ash

  |

  300 m away
• Fernhill

  |

  1.2 km away
• Penrhiwceiber

  |

  1.9 km away

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