18, John Street, Treharris has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 31 May 2023.

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

18, John Street, Treharris last changed hands on 15th September 2023, selling for £100,000. 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 dropped by 28.2% since September 2023.

• Sold Sep 2023£100,000

Land Registry records and our Estate Agent network show 17 sales of comparable properties within 690 metres of 18, John Street, Treharris since 2007.

Most recently, 22, Oaklands Terrace, Treharris, CF46 5RG, a freehold house, sold at £165,000 on the 13th April 2026.

Read more about house prices in CF46.

• Sold Apr 2026£165,000 | 4 Bed House22, Oaklands Terrace, Treharris, CF46 5RG22, Oaklands Terrace, Treharris, CF46 5RG
• Sold Aug 2025£70,000 | 4 Bed House6, Fox Street, Treharris, CF46 5HE6, Fox Street, Treharris, CF46 5HE
• Sold May 2025£100,000 | 4 Bed House16, Perrott Street, Treharris, CF46 5ER16, Perrott Street, Treharris, CF46 5ER
• Sold Sep 2022£140,000 | 4 Bed House3, Oaklands Terrace, Treharris, CF46 5RG3, Oaklands Terrace, Treharris, CF46 5RG
• Sold Feb 2022£84,000 | 4 Bed House42, Penn Street, Treharris, CF46 5HL42, Penn Street, Treharris, CF46 5HL
• Sold Aug 2021£140,000 | 4 Bed House15, Webster Street, Treharris, CF46 5HW15, Webster Street, Treharris, CF46 5HW
• Sold Jul 2020£235,000 | 4 Bed HouseAlana Croft, Perrott Street, Treharris, CF46 5ERAlana Croft, Perrott Street, Treharris, CF46 5ER
• Sold Oct 2019£117,500 | 4 Bed House22, Bontnewydd Terrace, Treharris, CF46 6AF22, Bontnewydd Terrace, Treharris, CF46 6AF
• Sold Sep 2019£60,000 | 4 Bed House34, Mary Street, Treharris, CF46 5LH34, Mary Street, Treharris, CF46 5LH
• Sold Jun 2019£130,000 | 4 Bed House4 Glen View Villas, Treharris, CF46 5PT4 Glen View Villas, Treharris, CF46 5PT
• Sold Oct 2017£161,000 | 4 Bed House15, Oaklands Terrace, Treharris, CF46 5RG15, Oaklands Terrace, Treharris, CF46 5RG
• Sold May 2017£115,000 | 4 Bed House35, Fell Street, Treharris, CF46 5HN35, Fell Street, Treharris, CF46 5HN
• Sold Oct 2014£32,000 | 4 Bed House1, Pritchard Street, Treharris, CF46 5HS1, Pritchard Street, Treharris, CF46 5HS
• Sold May 2014£122,500 | 4 Bed House42, Perrott Street, Treharris, CF46 5ER42, Perrott Street, Treharris, CF46 5ER
• Sold Dec 2012£71,000 | 4 Bed House17, John Street, Treharris, CF46 5PS17, John Street, Treharris, CF46 5PS
• Sold Sep 2011£65,000 | 4 Bed House5, Oaklands Terrace, Treharris, CF46 5RG5, Oaklands Terrace, Treharris, CF46 5RG
• Sold May 2007£110,000 | 4 Bed House15, Penn Street, Treharris, CF46 5HL15, Penn Street, Treharris, CF46 5HL

Our analysis of the public data ranks 18, John Street, Treharris as the 4th largest and the 5th most expensive of the 39 addresses on John Street, Treharris, CF46.

Against the CF46 postcode district average, it is £4k more expensive than the typical property.

• Quakers Yard

  |

  1.3 km away
• Abercynon

  |

  2.6 km away
• Merthyr Vale

  |

  3.3 km away

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