According to data from HM Land Registry, 27, John Street, Treharris sits on a plot of 108 m².

We have plot size data on 30 out of 39 other houses in the postcode and 27, John Street, Treharris sits on the 25th largest plot.

27, John Street, Treharris has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 31 May 2016.

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, 27, John Street, Treharris was last sold on 31st August 2016 for £90,000 and was recorded as a freehold house.

The property has had 5 sales since 1995.

Since August 2016, the market for similar properties has risen by 85.6%.

• Sold Aug 2016£90,000
• Sold Sep 2007£94,737
• Sold Oct 2005£69,950

According to the Land Registry and our network of Estate Agents, there have been 256 sales of properties similar to 27, John Street, Treharris within a radius of 690 metres since 2019.

The most recent example is 9, Fell Street, Treharris, CF46 5HN, a freehold house which sold for £137,000 on the 1st May 2026.

Read more about house prices in CF46.

• Sold May 2026£137,000 | 3 Bed House9, Fell Street, Treharris, CF46 5HN9, Fell Street, Treharris, CF46 5HN
• Sold Dec 2025£125,000 | 3 Bed House61, Fell Street, Treharris, CF46 5HN61, Fell Street, Treharris, CF46 5HN
• Sold Nov 2025£128,000 | 3 Bed House17, Thornwood Place, Treharris, CF46 5AB17, Thornwood Place, Treharris, CF46 5AB
• Sold Oct 2025£150,000 | 3 Bed House18, Thomas Street, Treharris, CF46 5LG18, Thomas Street, Treharris, CF46 5LG
• Sold Oct 2025£54,500 | 3 Bed House11, Mary Street, Treharris, CF46 5LH11, Mary Street, Treharris, CF46 5LH
• Sold Sep 2025£75,000 | 3 Bed House15, Bargoed Terrace, Treharris, CF46 5RB15, Bargoed Terrace, Treharris, CF46 5RB
• Sold Aug 2025£71,000 | 3 Bed House36, Perrott Street, Treharris, CF46 5ER36, Perrott Street, Treharris, CF46 5ER
• Sold Jul 2025£107,950 | 3 Bed House44, Penn Street, Treharris, CF46 5HL44, Penn Street, Treharris, CF46 5HL
• Sold May 2025£92,000 | 3 Bed House45, Penn Street, Treharris, CF46 5HL45, Penn Street, Treharris, CF46 5HL
• Sold Apr 2025£75,000 | 3 Bed House6, Edward Street, Treharris, CF46 5LF6, Edward Street, Treharris, CF46 5LF
• Sold Apr 2025£90,000 | 3 Bed House20, Edward Street, Treharris, CF46 5LF20, Edward Street, Treharris, CF46 5LF
• Sold Aug 2024£100,000 | 3 Bed House7, Fell Street, Treharris, CF46 5HN7, Fell Street, Treharris, CF46 5HN
• Sold Jun 2024£142,500 | 3 Bed House1, Edward Street, Treharris, CF46 5LF1, Edward Street, Treharris, CF46 5LF
• Sold Nov 2023£68,000 | 3 Bed House19, Fell Street, Treharris, CF46 5HN19, Fell Street, Treharris, CF46 5HN
• Sold Jul 2023£71,000 | 3 Bed House21, Edward Street, Treharris, CF46 5LF21, Edward Street, Treharris, CF46 5LF
• Sold May 2023£120,000 | 3 Bed House68, Fell Street, Treharris, CF46 5HN68, Fell Street, Treharris, CF46 5HN
• Sold Mar 2023£93,000 | 3 Bed House8, Edward Street, Treharris, CF46 5LF8, Edward Street, Treharris, CF46 5LF
• Sold Feb 2022£124,000 | 3 Bed House10, Edward Street, Treharris, CF46 5LF10, Edward Street, Treharris, CF46 5LF
• Sold Jun 2021£115,000 | 3 Bed House5, Edward Street, Treharris, CF46 5LF5, Edward Street, Treharris, CF46 5LF
• Sold Apr 2019£87,000 | 3 Bed House12, Edward Street, Treharris, CF46 5LF12, Edward Street, Treharris, CF46 5LF

John Street, Treharris, CF46 has a total of 39 addresses. According to our analysis of all the public data, 27, John Street, Treharris is the 26th largest and the 27th most expensive property on the street.

When compared to the postcode district it is £37k 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.