According to data from HM Land Registry, 1, John Street, Treharris sits on a plot of 188 m².

We have plot size data on 30 out of 39 other houses in the postcode and 1, John Street, Treharris sits on the 4th largest plot.

1, John Street, Treharris has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 12 Jan 2011.

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

According to HM Land Registry, 1, John Street, Treharris was last sold on 25th January 2021 for £100,000 and was recorded as a freehold house.

The property has had 2 sales since 1995.

Since January 2021, the market for similar properties has risen by 47.5%.

• Sold Jan 2021£100,000
• Sold Dec 2011£80,000

According to the Land Registry and our network of Estate Agents, there have been 117 sales of properties similar to 1, John Street, Treharris within a radius of 670 metres since 2019.

The most recent example is 22, Oaklands Terrace, Treharris, CF46 5RG, a freehold house which sold for £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 Jan 2026£195,000 | 3 Bed House41, Brynteg, Treharris, CF46 5RE41, Brynteg, Treharris, CF46 5RE
• Sold Dec 2025£118,000 | 3 Bed House40, Brynteg, Treharris, CF46 5RE40, Brynteg, Treharris, CF46 5RE
• Sold Nov 2025£153,000 | 3 Bed House38, Thornwood Place, Treharris, CF46 5AB38, Thornwood Place, Treharris, CF46 5AB
• Sold Nov 2025£120,000 | 3 Bed House20, Fell Street, Treharris, CF46 5HN20, Fell Street, Treharris, CF46 5HN
• Sold Jul 2025£90,000 | 3 Bed House8, Penn Street, Treharris, CF46 5HL8, Penn Street, Treharris, CF46 5HL
• Sold Mar 2025£142,500 | 3 Bed House4, Fell Street, Treharris, CF46 5HN4, Fell Street, Treharris, CF46 5HN
• Sold Jan 2025£125,000 | 3 Bed House25, Perrott Street, Treharris, CF46 5ER25, Perrott Street, Treharris, CF46 5ER
• Sold Sep 2024£30,000 | 3 Bed House11, Perrott Street, Treharris, CF46 5ER11, Perrott Street, Treharris, CF46 5ER
• Sold Aug 2024£130,000 | 3 Bed House58, Webster Street, Treharris, CF46 5HP58, Webster Street, Treharris, CF46 5HP
• Sold May 2024£135,000 | 3 Bed House44, Thornwood Place, Treharris, CF46 5AB44, Thornwood Place, Treharris, CF46 5AB
• Sold Dec 2023£107,000 | 3 Bed House9, Oaklands Terrace, Treharris, CF46 5RG9, Oaklands Terrace, Treharris, CF46 5RG
• Sold Oct 2023£128,000 | 3 Bed House14, Perrott Street, Treharris, CF46 5ER14, Perrott Street, Treharris, CF46 5ER
• Sold Aug 2023£137,000 | 4 Bed House54, Penn Street, Treharris, CF46 5HL54, Penn Street, Treharris, CF46 5HL
• Sold May 2022£155,000 | 3 Bed House7, Bargoed Terrace, Treharris, CF46 5RB7, Bargoed Terrace, Treharris, CF46 5RB
• Sold May 2022£73,000 | 3 Bed House42, Thornwood Place, Treharris, CF46 5AB42, Thornwood Place, Treharris, CF46 5AB
• Sold Feb 2022£84,000 | 4 Bed House42, Penn Street, Treharris, CF46 5HL42, Penn Street, Treharris, CF46 5HL
• Sold Jul 2020£138,000 | 3 Bed House11, Oaklands Terrace, Treharris, CF46 5RG11, Oaklands Terrace, Treharris, CF46 5RG
• Sold Jun 2020£200,000 | 4 Bed House10, Oaklands Terrace, Treharris, CF46 5RG10, Oaklands Terrace, Treharris, CF46 5RG
• Sold May 2019£132,500 | 3 Bed House7, Oaklands Terrace, Treharris, CF46 5RG7, Oaklands Terrace, Treharris, CF46 5RG

John Street, Treharris, CF46 has a total of 39 addresses. According to our analysis of all the public data, 1, John Street, Treharris is the 9th largest and the 9th most expensive property on the street.

When compared to the postcode district it is £13k less expensive than the average property in CF46.

• Quakers Yard

  |

  1.3 km away
• Abercynon

  |

  2.6 km away
• Merthyr Vale

  |

  3.3 km away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.